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Henry R. Weller

Professor Emeritus of Physics
Physics
Box 90308, Durham, NC 27708-0308
TUNL, Durham, NC 27708

Selected Publications


Cross section measurements of the B10(d,n0)C11 reaction below 160 keV

Journal Article Physical Review C - Nuclear Physics · May 27, 2008 New data were taken at the Triangle Universities Nuclear Laboratory to investigate the plausibility of using low energy deuterons and the B10(d,n)C11 reaction as a portable source of 6.3 MeV neutrons. Analysis of the data at and below incident deuteron ene ... Full text Cite

Near-threshold deuteron photodisintegration: An indirect determination of the Gerasimov-Drell-Hearn sum rule and forward spin polarizability (γ0) for the deuteron at low energies

Journal Article Physical Review C - Nuclear Physics · April 24, 2008 It is shown that a measurement of the analyzing power obtained with linearly polarized γ-rays and an unpolarized target can provide an indirect determination of two physical quantities. These are the Gerasimov-Drell-Hearn (GDH) sum rule integrand for the d ... Full text Cite

Research Opportunities at the Upgraded HIGS Facility

Journal Article Progress in Particle and Nuclear Physics · 2008 Cite

Calibration and Performance of the UConn-Yale_PTB-Weizmann-UCL-TUNL O-TOC

Journal Article Bulletin of the American Physical Society · 2007 Cite

Differential cross sections for g+p->K+--+Y for Lamda and Sigma0 hyperons

Journal Article Physical Review C · December 2006 www.aps.org ... Link to item Cite

The 7Li(d,n0)8Be and 7Li(d,n1)8Be reactions below 160 keV

Journal Article Physical Review C · December 2006 Link to item Cite

In beam tests of implanted helium targets

Journal Article Journal of Instrumentation · September 15, 2006 Targets of 3,4He implanted into thin aluminum foils (approximately 100, 200 or 600 μg/cm2) were prepared using intense helium beams at low energy (20, 40 or 100 keV). Uniformity was achieved by a beam raster across a tantalum collimator at the rates of 0.1 ... Full text Cite

Astrophysical S factor for the B11(d,n)C12 reaction below 135 keV

Journal Article Physical Review C - Nuclear Physics · July 25, 2006 The B11(d,n)C12 reaction was studied using deuteron beams of 120-160 keV to determine the absolute astrophysical S factors and cross sections for the n0 and n1 neutron groups. The slopes of the S factors are consistent with zero for both the n0 and n1 case ... Full text Cite

Amplification and scintillation properties of oxygen-rich gas mixtures for optical-TPC applications

Journal Article Journal of Instrumentation · May 5, 2006 We studied electron amplification and light emission from avalanches in oxygen-containing gas mixtures. The mixtures investigated in this work included, among others, CO2 and N2O mixed with Triethylamine (TEA) or N2. Double-Step Parallel Gap (DSPG) multipl ... Full text Cite

First evidence for spin-flip M1 strength in 40A

Journal Article Physical Review C · March 2006 www.aps.org ... Link to item Cite

Astrophysical S factor for the Li7(d,n0)Be8 and Li7(d,n1)Be8 reactions

Journal Article Physical Review C - Nuclear Physics · January 1, 2006 The absolute astrophysical S factor and cross section for the Li7(d,n0)Be8 and Li7(d,n1)Be8 reactions have been determined using deuteron beams with energies between 45 and 80 keV. The slope of the S factor is consistent with zero in the n0 case but is sli ... Full text Cite

Cross section measurements of the B10(d,n0)C11 reaction below 160 keV

Journal Article Physical Review C - Nuclear Physics · May 27, 2008 New data were taken at the Triangle Universities Nuclear Laboratory to investigate the plausibility of using low energy deuterons and the B10(d,n)C11 reaction as a portable source of 6.3 MeV neutrons. Analysis of the data at and below incident deuteron ene ... Full text Cite

Near-threshold deuteron photodisintegration: An indirect determination of the Gerasimov-Drell-Hearn sum rule and forward spin polarizability (γ0) for the deuteron at low energies

Journal Article Physical Review C - Nuclear Physics · April 24, 2008 It is shown that a measurement of the analyzing power obtained with linearly polarized γ-rays and an unpolarized target can provide an indirect determination of two physical quantities. These are the Gerasimov-Drell-Hearn (GDH) sum rule integrand for the d ... Full text Cite

Research Opportunities at the Upgraded HIGS Facility

Journal Article Progress in Particle and Nuclear Physics · 2008 Cite

Calibration and Performance of the UConn-Yale_PTB-Weizmann-UCL-TUNL O-TOC

Journal Article Bulletin of the American Physical Society · 2007 Cite

Differential cross sections for g+p->K+--+Y for Lamda and Sigma0 hyperons

Journal Article Physical Review C · December 2006 www.aps.org ... Link to item Cite

The 7Li(d,n0)8Be and 7Li(d,n1)8Be reactions below 160 keV

Journal Article Physical Review C · December 2006 Link to item Cite

In beam tests of implanted helium targets

Journal Article Journal of Instrumentation · September 15, 2006 Targets of 3,4He implanted into thin aluminum foils (approximately 100, 200 or 600 μg/cm2) were prepared using intense helium beams at low energy (20, 40 or 100 keV). Uniformity was achieved by a beam raster across a tantalum collimator at the rates of 0.1 ... Full text Cite

Astrophysical S factor for the B11(d,n)C12 reaction below 135 keV

Journal Article Physical Review C - Nuclear Physics · July 25, 2006 The B11(d,n)C12 reaction was studied using deuteron beams of 120-160 keV to determine the absolute astrophysical S factors and cross sections for the n0 and n1 neutron groups. The slopes of the S factors are consistent with zero for both the n0 and n1 case ... Full text Cite

Amplification and scintillation properties of oxygen-rich gas mixtures for optical-TPC applications

Journal Article Journal of Instrumentation · May 5, 2006 We studied electron amplification and light emission from avalanches in oxygen-containing gas mixtures. The mixtures investigated in this work included, among others, CO2 and N2O mixed with Triethylamine (TEA) or N2. Double-Step Parallel Gap (DSPG) multipl ... Full text Cite

First evidence for spin-flip M1 strength in 40A

Journal Article Physical Review C · March 2006 www.aps.org ... Link to item Cite

Astrophysical S factor for the Li7(d,n0)Be8 and Li7(d,n1)Be8 reactions

Journal Article Physical Review C - Nuclear Physics · January 1, 2006 The absolute astrophysical S factor and cross section for the Li7(d,n0)Be8 and Li7(d,n1)Be8 reactions have been determined using deuteron beams with energies between 45 and 80 keV. The slope of the S factor is consistent with zero in the n0 case but is sli ... Full text Cite

Radiative Decays of the Sigma-0(1385) and Lamda (1520) Hyperons

Journal Article Physical Review C · December 2005 Link to item Cite

Exclusive Photoproduction of the Cascade Hyperons

Journal Article The Physica Review C · December 2005 Link to item Cite

Onset of asymptotic scaling in deuteron photodisintegration.

Journal Article Physical review letters · January 2005 We investigate the transition from the nucleon-meson to the quark-gluon description of the strong interaction using the photon energy dependence of the d(gamma,p)n differential cross section for photon energies above 0.5 GeV and center-of-mass proton angle ... Full text Cite

Energy level of light nuclei A=8,9,10

Journal Article Nuclear Physics · December 2004 Link to item Cite

Two-Nucleon Momentum Distributions Measured in 3He(e,e'pp)n

Journal Article Physical Review Letters · 2004 Link to item Cite

Compton scattering of polarized γ rays by16O for E γ=25-40 MeV

Journal Article Physical Review C - Nuclear Physics · January 1, 2004 Measurements of the polarization asymmetries σ(θ c.m.) and σ(Eγ) of Compton scattering by 16O have been performed in the energy range of 25-40 MeV over a range of scattering angles between 90 and 150°. An analysis of the present data combined with previous ... Full text Cite

Recent results using the high intensity γ-ray source facility

Journal Article Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · June 1, 2003 We describe the high intensity γ-ray source, which produces nearly monoenergetic γ-ray beams with energies ranging from 2 to 58 MeV, intensities of 105-5 × 108 γ/s, and 100% linear polarization. Upgrades of the facility are in progress to increase the ener ... Full text Cite

Background reduction in FEL-generated gamma-ray beam experiments using giant high-peak power pulses

Journal Article Nuclear Instruments and Methods in Physics Research A · 2003 Link to item Cite

Parity measurements of nuclear dipole excitations using FEL-generated γ-rays at HIγS

Journal Article Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · May 1, 2002 First Nuclear Resonance Fluorescence (NRF) experiments were performed at the storage ring FEL-driven High Intensity Gamma Source (HIγS) at the DFELL. Azimuthal NRF intensity ratios were measured around the polarized HIγS beam. Electric character was deduce ... Full text Cite

Identification of the J-pi = 1- two-phonon state of 88Sr

Journal Article Physical Review C · April 2002 www.aps.org ... Link to item Cite

3H(p,gamma)4He reaction below Ep=80 keV

Journal Article Physical Review C · April 2002 www.aps.org ... Link to item Cite

Energy levels of light nuclei A=5,6,7

Journal Article Nuclear Physics · January 2002 A review of the evidence on the properties of the nuclei A=5,6 and 7, with emphasis on material leading to information about the structure of the A=5,6,7 systems. ... Link to item Cite

The ep -->e'p eta reaction at and above the S11(1535) baryon resonance.

Journal Article Physical review letters · February 2001 New cross sections for the reaction e p-->e p eta are reported for total center of mass energy W = 1.5--1.86 GeV and invariant momentum transfer Q2 = 0.25--1.5 (GeV/c)(2). This large kinematic range allows extraction of important new information about resp ... Full text Cite

Exclusive electroproduction of [Formula Presented] mesons at 4.2 GeV

Journal Article Physical Review C - Nuclear Physics · January 1, 2001 We studied the exclusive reaction [Formula Presented] using the [Formula Presented] decay mode. The data were collected using a 4.2 GeV incident electron beam and the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator F ... Full text Cite

Search for nuclear isotopes for use in a nuclear battery

Journal Article Journal of Propulsion and Power · January 1, 2001 Performance of a radioisotopic thermoelectric generator for a human-portable energy source is discussed. The design of thermoelectric generators is not considered. Instead desirable characteristics of the radioisotope are used to search for reasonable cand ... Full text Cite

Photoproduction of φ (1020) mesons on the proton at large momentum transfer

Journal Article Physical Review Letters · November 27, 2000 Elastic photoproduction of φ mesons from the proton was measured for the first time up to -t = 4 GeV2. Below -t ≈ 1 GeV2, the data cannot distinguish between the Pomeron exchange and the two-gluon exchange models. Above -t ≈ 1.8 GeV2, the data ruled out th ... Full text Cite

"The 11B(p,ƒ×)12C Reaction below 100 keV"

Journal Article Phys. Rev. · 2000 Cite

Two-deuteron photodisintegration of 4He at Eγ=150-250 MeV

Journal Article Physical Review C - Nuclear Physics · January 1, 2000 We have performed a measurement of the cross section for the 4He(γ,dd) reaction with photon energies between 150 and 250 MeV. Both reaction particles were detected in coincidence. We obtained absolute cross sections at six angles and two energy bins (150-1 ... Full text Cite

Threshold contribution to the Gerasimov-Drell-Hearn sum rule in 3He

Journal Article FEW-BODY PROBLEMS IN PHYSICS '99 · 2000 Cite

"A New Photodisintegration Threshold Observable in 3He"

Journal Article Phys. Rev. (Rapid Communications) · 1999 Cite

Energy levels of light nuclei, A=20

Journal Article Nuclear Physics A · June 1998 Cite

OK-4/Duke monochromatic gamma-ray source: performance and prediction

Journal Article Nuclear Instruments \& Methods In Physics Research Section A-accelerators Spectrometers Detectors And Associated Equipment · April 1998 Cite

Polarized radiative capture studies of the 3-body system below 80 keV

Journal Article Nuclear Physics A · March 2, 1998 Advances in both experimental and theoretical techniques are now making it possible to study three-body capture reactions below 80 keV in considerable detail. Measurements of the energy dependence of the cross section for the D(p,γ)3He reaction below 80 ke ... Full text Cite

Nuclear research at Duke [5]

Journal Article Science · January 23, 1998 Cite

Polarized deuteron capture on 3He in the fusion resonance region 1

Journal Article Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · January 11, 1998 The absolute differential cross section, σ(θ), and the analyzing powers Ay(θ), Ayy(θ), and T20(θ) of the 3He(d, γ)5Li reaction have been measured using an 800 keV deuteron beam which was stopped in a gaseous 3He target. The same quantities, with the except ... Full text Cite

“Energy Levels of Light Nuclei, A = 20"

Journal Article Nucl. Phys. · 1998 Cite

TheHe andHe reactions below 80 keV

Journal Article Physical Review C · November 1, 1997 Full text Cite

reaction at–0 keV

Journal Article Physical Review C · September 1, 1997 Full text Cite

Measurement of the (7)BE(p,gamma) cross section at low energies.

Journal Article ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · April 13, 1997 Link to item Cite

Correction factors for γ-ray relative intensities in the 66Ga radioisotope

Journal Article Nuclear Physics A · September 16, 1996 We present here strong evidence that recently published values for the relative intensities of γ-ray lines in the 66Ga(β+ + EC)66Zn decay are incorrect at the higher energies (∼ 30% too low at 4.8 MeV). In particular, we find that our current results are c ... Full text Cite

The TUNL-FELL inverse Compton γ-ray source as a nuclear physics facility

Journal Article Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · August 11, 1996 A new technique for producing an intense beam of polarized γ-rays is presented. This High-Intensity Gamma-ray Source (HIGS) will utilize the facilities of the new Duke Free Electron Laser Laboratory. This system includes the LINAC injector, the 1.3 GeV ele ... Full text Cite

Inverse Compton gamma-ray source for nuclear physics and related applications

Journal Article Nuclear Instruments \& Methods In Physics Research Section A-accelerators Spectrometers Detectors And Associated Equipment · June 1996 Cite

Low-energy polarized-proton capture on 6Li.

Journal Article Physical review. C, Nuclear physics · April 1996 Full text Cite

Effects of non-nucleonic degrees of freedom in the D(p

Journal Article Physical review letters · April 1996 Full text Cite

T20 measurements for 1H(d

Journal Article Physical review. C, Nuclear physics · January 1996 Full text Cite

Energy levels of light nuclei A = 18-19

Journal Article Nuclear Physics, Section A · December 4, 1995 Compilation of energy levels of A = 18 and 19 nuclei, with emphasis on the review of material leading to information about the structure of the A = 18 and 19 systems. © 1995. ... Full text Cite

Comment on the7Li(p, γ)8Be reaction at energies of astrophysical interest

Journal Article Zeitschrift für Physik A Hadrons and Nuclei · December 1, 1995 The results of two recent publication are reconsidered. These papers argue that the p-wave effects seen in the7Li(p, γ)8Be reaction below Ep=80 keV can be accounted for by considering the low-energy tail of the p-wave resonance at Ep=441 keV. It is shown t ... Full text Cite

A polarimeter for low-energy protons

Journal Article Nuclear Inst. and Methods in Physics Research, A · February 15, 1995 A polarimeter is described for proton beam energies below 100 keV using the 7Li(p, γ)8 Be reaction. Measurements indicate an analyzing power near 0.4 with yields that would allow a 10% measurement of beam polarization in 1 h for sources producing beam curr ... Full text Cite

Polarized proton capture by deuterium and the H2(p,γ)He3 astrophysical S factor

Journal Article Physical Review C · January 1, 1995 The H2(p→, γ)He3 reaction has been studied in the energy region Ep=80-0 keV (Ec.m.=53.3-0 keV), where the quantities measured were σ(θ,E) and Ay(θ,E). Our result for the total H2(p,γ)He3 S factor at E=0 is S(0)=0.121±0.012 eV b (including systematic error) ... Full text Cite

Radiative capture of polarized deuterons by 6Li and the D-state of 8Be

Journal Article Nuclear Physics, Section A · September 26, 1994 Measurements of angular distributions of the cross section, vector and tensor analyzing powers have been performed at Ed(lab)= 9.0 MeV and 2.0 MeV for the 6Li(d, γ)8Be reaction. Excitation functions were also measured for Ed(lab) = 7.0-14.0 MeV at θ{symbol ... Full text Cite

Isovector giant quadrupole resonance observed in 89Y(p

Journal Article Physical review. C, Nuclear physics · September 1994 Full text Cite

Observation of substantial p-wave capture strength in the 7Li(p

Journal Article Physical review letters · June 1994 Full text Cite

A portable 17.3 MeV gamma-ray source

Journal Article Nuclear Inst. and Methods in Physics Research, A · May 1, 1994 The 7Li(p, γ)8Be reaction at low beam energies, ≤ 100 keV, is considered for use as a high energy gamma-ray source. Production rates indicate that this reaction would yield a reasonable intensity of 17.3 and 14.3 MeV gamma rays with inexpensive and readily ... Full text Cite

Polarized deuteron capture by 3He and 3H at and above the fusion resonance region.

Journal Article Physical review. C, Nuclear physics · February 1994 Full text Cite

Energy levels of light nuclei A = 16-17

Journal Article Nuclear Physics, Section A · November 8, 1993 Compilation of energy levels of A = 16 and 17 nuclei, with emphasis on the review of material leading to information about the structure of theA = 16 and 17 systems. © 1993. ... Full text Cite

2H(d, gamma )4He polarization observables at 20, 30, and 50 MeV.

Journal Article Physical review. C, Nuclear physics · November 1993 Full text Cite

Radiative capture of polarized deuterons on 7Li.

Journal Article Physical review. C, Nuclear physics · July 1993 Full text Cite

Energy levels of light nuclei A = 4

Journal Article Nuclear Physics A · May 1992 Full text Cite

Angular distribution coefficients for (γ, X) reactions with linearly polarized photons

Journal Article Atomic Data and Nuclear Data Tables · January 1, 1992 The formalism for a linearly polarized γ-ray capture particle-out reaction is presented. The form given allows one to generate the expressions for the cross section as a function of the detected particle angle, θ, and the photon-polarization angle, φ, in t ... Full text Cite

The 6Li(d, γ)8Be reaction at Ed=9.0 MeV and the D-state of 8Be

Journal Article Physics Letters B · December 19, 1991 Measurements of the 6Li(d, γ)8Be cross section, σ(θ), the vector analyzing power, Ay(θ) and the tensor analyzing powers, Ayy(θ) and T20(θ), have been obtained at 〈Ed Lab〉=9.0 MeV. A transition matrix element analysis was performed. A direct-capture and a m ... Full text Cite

Resolution of the twofold ambiguity in the E1 capture amplitudes for the 13C(p

Journal Article Physical review. C, Nuclear physics · March 1991 Full text Cite

Isovector giant quadrupole resonance observed in 30Si(p

Journal Article Physical review. C, Nuclear physics · January 1991 Full text Cite

Two-deuteron radiative capture: Polarization observables at Ed <= 15 MeV.

Journal Article Physical review. C, Nuclear physics · October 1990 Full text Cite

The d-state of 4He and the 2H(d,γ) 4He reaction from Ed = 800 keV-to-50 MeV

Journal Article Nuclear Physics, Section A · January 1, 1990 Full text Cite

Radiative capture of tensor and vector polarized deuterons by 3H at 400 keV.

Journal Article Physical review. C, Nuclear physics · September 1989 Full text Cite

Evidence for M1 strength in the 3H(p

Journal Article Physical review. C, Nuclear physics · February 1989 Full text Cite

Vector analyzing powers for 1H(d

Journal Article Physical review. C, Nuclear physics · December 1988 Full text Cite

Manifestations of the D-State in Light Nuclei

Journal Article Annual Review of Nuclear and Particle Science · December 1988 Full text Cite

The energy dependence of polarization observables in the 2H(d,γ)4He reaction

Journal Article Physics Letters B · November 3, 1988 Measurements of the tensor and vector analyzing powers, Ayy(130°) and Ay(130°), have been obtained for the 2H(d,γ )4He reaction for energies ranging from Ed(lab) = 0.3 MeV to Ed(lab) = 50 MeV. The Ayy(130°) data are sensitive to the D-state present in the ... Full text Cite

Gamma decay of high spin states in 25Mg above 6.1 MeV.

Journal Article Physical review. C, Nuclear physics · October 1988 Full text Cite

2H(d

Journal Article Physical review. C, Nuclear physics · July 1988 Full text Cite

High-spin states and rotational coexistence in 25Mg

Journal Article Physics Letters B · December 3, 1987 New high spin states in 25Mg have been located above the neutron threshold using the 12C(14N, pγ)25Mg reaction at E=23.5 MeV. The members of the ground state rotational band (Kπ= 5 2+ have been tentatively identified up to 15 2+. The yrast 15 2+ (not a mem ... Full text Cite

Energy levels of light nuclei A = 3

Journal Article Nuclear Physics, Section A · November 16, 1987 A compilation of information on A = 3 nuclei is presented. Emphasis is on possible structure of A = 3 systems and final-state interactions in three-particle reactions. No excited states of 3H and 3He have been established, and no firm evidence for the exis ... Full text Cite

Ground-state photoneutron reactions in sup18O.

Journal Article Phys Rev C Nucl Phys · October 1987 Full text Link to item Cite

Measurement of the 12C(n, gamma 0)13C cross section in the giant dipole resonance region.

Journal Article Physical review. C, Nuclear physics · February 1987 Full text Cite

Radiative neutron capture by deuterium.

Journal Article Physical review. C, Nuclear physics · August 1986 Full text Cite

4He D-state effects in the 2H(d, gamma )4He reaction at low energies.

Journal Article Physical review. C, Nuclear physics · July 1986 Full text Cite

3H(p

Journal Article Physical review. C, Nuclear physics · December 1985 Full text Cite

Radiative deuteron capture into the secondary doorway state of 13C.

Journal Article Physical review. C, Nuclear physics · October 1985 Full text Cite

Polarized neutron capture on 13C.

Journal Article Physical review. C, Nuclear physics · April 1985 Full text Cite

A bismuth germanate gamma-ray spectrometer with a plastic anticoincidence shield

Journal Article Nuclear Inst. and Methods in Physics Research, A · January 15, 1985 Response functions to photons in the energy range of 4.4-26.6 MeV have been obtained for a 7.6 × 7.6 cm BGO scintillator surrounded by a 5.1 cm thick well-type anticoincident shield. An AmBe source and various (p, γ) reactions provided the gamma-rays. The ... Full text Cite

Relative response of the deuterated liquid scintillator NE232 to tritons

Journal Article Nuclear Instruments and Methods In Physics Research · July 1, 1984 Light output for recoiling tritons at six energies from 2.3 to 4.1 MeV relative to recoiling 6.1 MeV deuterons has been measured and compared to a semi-empirical calculation. © 1984. ... Full text Cite

Vector analyzing powers of H1(d,γ) and H2(p,γ) reactions at Ex=6 MeV

Journal Article Physical Review C · January 1, 1984 The vector analyzing powers have been measured for the H1(d→,γ) He3 and the H2(p→,γ)He3 reactions at Ex=6 MeV. The results indicate the presence of channel spin 32 capture strength. An M 1 strength amounting to between 1 and 8% of the cross section is able ... Full text Cite

Polarized and unpolarized proton capture on deuterium

Journal Article Physical Review C · 1984 Cite

Tensor-polarized-deuteron capture on deuterium and the D state of He4

Journal Article Physical Review Letters · January 1, 1984 The tensor analyzing power T20() of the reaction H2(d,)He4 has been measured at six angles at Ed=9.7 MeV. The result is found to be isotropic with a value of T20=-0.220.014. This analyzing power arises from the interference of S=0 and S=2 capture amplitude ... Full text Cite

j dependence of polarization effects in nucleon capture reactions

Journal Article Physical Review C · January 1, 1984 Polarized proton capture data indicate a sensitivity to the j value (l±12) of the single particle final state for a given l value. The direct capture model is examined and a simple relationship between the analyzing powers for capture to the two j values i ... Full text Cite

Polarized neutron capture into C13: Evidence for a secondary doorway state effect

Journal Article Physical Review C · January 1, 1984 Angular distributions for the C12(n,0)C13 reaction have been measured with neutrons corresponding to excitation energies of 16.0, 19.2, 20.1, 20.8, and 21.8 MeV. Legendre polynomial coefficients have been determined to second order (a3 is small). Polarized ... Full text Cite

Polarized triton capture on 12C

Journal Article Nuclear Physics, Section A · December 5, 1983 The 90° cross section for the 12C(t, γ0)15N reaction was measured for Et from 2.3 to 6.5 MeV. Polarized and unpolarized angular distribution data were obtained for E1 = 2.27, 3.24 and 5.95 MeV. The resulting a2 and b2 coefficients are compared to the predi ... Full text Cite

THE PUZZLE OF THE SIGMA(GAMMA,P) SIGMA(GAMMA,N) RATIO IN HE-4

Journal Article ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING · 1983 Cite

Effects of the he-3 d-state in the reaction h-2(p,gamma)he-3

Journal Article Physical Review Letters · 1983 Cite

Direct-semidirect model angular distributions for radiative capture or photonuclear reactions involving nonzero target or residual spins

Journal Article Physical Review C · January 1, 1983 A recent study of (, n0) reactions on Pb207 and Pb208 produced a direct-semidirect model calculation of the angular distribution (the a2 coefficient) which was vastly different for these two cases. In this paper we offer the formal proof that this is incor ... Full text Cite

(,)reaction belowMeV

Journal Article Physical Review C · March 1, 1982 Full text Cite

Corrections to the B11(p, 0)C12 cross section and its implications

Journal Article Physical Review C · January 1, 1982 We have performed two independent measurements of the B11(p, 0)C12 reaction over the energy range of Ep=5-14 MeV. The two measurements are in good agreement with each other and indicate that the previously accepted results are in error. The new values for ... Full text Cite

Proton capture to bound and unbound states of C12

Journal Article Physical Review C · January 1, 1982 The cross section for the B11(p,)C12 reaction leading to the 19 MeV region of C12 has been measured at lab=60°for Ep of 23 to 60 MeV. Angular distributions of cross sections and analyzing powers were measured at Ep=28.7 MeV. The B11(p,0,1)C12 cross section ... Full text Cite

Proton capture in the 19 MeV region of C12

Journal Article Physical Review C · January 1, 1982 The 60°and 90°yield curves for the B11(p,)C12 reaction have been measured for Ep=2.9 to 4.6 MeV in 100 keV steps for rays leading to the ground and first and third excited states. Recent (,) data suggest the existence of an isospin mixed doublet near 19.5 ... Full text Cite

Neutron capture in the giant resonance region of N15

Journal Article Physical Review C · January 1, 1982 The N14(n,0)N15 reaction has been studied over a neutron energy range of 5.6 MeV to 13 MeV. Data include a 90° excitation function measured in 200 keV steps, and seven angular distributions. The angular distribution data show good agreement with the result ... Full text Cite

Neutron-capture in the giant-resonance region of pb-209

Journal Article Nuclear Physics A · 1982 Cite

Polarized neutron capture on He3 at En=9.0 MeV

Journal Article Physical Review C · January 1, 1982 A polarized neutron beam has been used to measure the angular distribution of the analyzing power for the He3(n,)He4 reaction at En (Ex)=9.0 (27.3) MeV. The angular distribution of the cross section, obtained with an unpolarized beam, is combined with thes ... Full text Cite

Confirmation of the photoneutron cross section for He4 below 33 MeV

Journal Article Physical Review C · January 1, 1981 A recently reported measurement of the photoneutron cross section for He4 indicates a value of about 1.0 mb for Ex of 23 to 33 MeV. This result, when combined with the previously reported (,p) cross section in this energy region, implies a (,p)-to-(,n) cro ... Full text Cite

RADIATIVE-CAPTURE OF NEUTRONS BY PB-208

Journal Article BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · 1981 Link to item Cite

Proton and neutron radiative capture

Journal Article IEEE Transactions on Nuclear Science · January 1, 1981 Full text Cite

Search for a giant resonance built on the 16.6-MeV state in Be8

Journal Article Physical Review C · January 1, 1981 The yield curve for proton capture on Li7, leading to the region of the isospin-mixed pair of states at Ex=16.63 and 16.92 MeV in Be8, has been measured as a function of bombarding energy from 4 to 30 MeV. A direct capture model provides a good description ... Full text Cite

Polarized proton capture on C13

Journal Article Physical Review C · January 1, 1980 The 90°yield curves for the C13(p→,γ0)N14 and C13(p→,γ1)N14 reactions have been measured in 200 keV steps for Ep=6.25 to 13.6 MeV and in 100 keV steps for Ep=13.6 to 17.0 MeV. In addition, 50 keV step data were obtained for Ep of 12.6 to 14.55 MeV. Angular ... Full text Cite

Capture reactions with protons, neutrons, and alpha particles

Journal Article Reviews of Modern Physics · January 1, 1980 A review of recent capture experiments which discusses polarized proton, polarized neutron, and alpha particle capture reactions is presented. The giant dipole resonance region is examined chiefly in terms of the information which can be obtained from angu ... Full text Cite

Evidence for a 2+ resonance in He4 at 40 MeV

Journal Article Physical Review Letters · January 1, 1980 The fore-aft asymmetry in the angular distribution of the reaction H3(p,0)He4 has been measured as a function of energy for protons from 17 to 31 MeV. The same quantity was also measured using the reaction He4(e,H3)pe. These asymmetry data were fitted with ... Full text Cite

PROTON CAPTURE TO EXCITED-STATES OF BE-8 AND N-14

Journal Article BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · 1980 Cite

RADIATIVE-CAPTURE OF POLARIZED NEUTRONS BY C-13

Journal Article BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · 1980 Cite

PROTON AND NEUTRON RADIATIVE-CAPTURE

Journal Article BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · 1980 Cite

Polarized proton capture on Si30

Journal Article Physical Review C · January 1, 1980 The 90°yield curves for the Si30(p, 0)P31 and Si30(p, 1)P31 reactions have been measured for Ep=5.0 to 28.0 MeV. Angular distributions of cross section and analyzing power were obtained at twelve energies between Ep=6.36 and 14.45 MeV. The cross sections w ... Full text Cite

RADIATIVE-CAPTURE OF NEUTRONS BY HE-3

Journal Article BULLETIN OF THE AMERICAN PHYSICAL SOCIETY · 1980 Cite