Scholars@Duke publication: Properties of the ∧(1520) resonance from high-precision electroproduction data

Properties of the ∧(1520) resonance from high-precision electroproduction data

Publication , Journal Article

Qiang, Y; Azimov, YI; Strakovsky, II; Briscoe, WJ; Gao, H; Higinbotham, DW; Nelyubin, VV

Published in: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

November 1, 2010

High-resolution spectrometer measurements of the reaction H(e,e'K+)X at small Q2 are used to extract the mass and width of the "(1520). We investigate the influence of various assumptions used in the extraction. The width appears to be more sensitive to the assumptions than the mass. To reach a width uncertainty about 1 MeV or better, one needs to know the structure of the non-resonant background. Based on the new Jefferson Lab Hall A data, our final values for the Breit-Wigner parameters are M=1520.4±0.6(stat.)±1.5(syst.) MeV, Γ=18.6±1.9(stat.)±1(syst.) MeV. We also estimate, for the first time, the pole position for this resonance and find that both the pole mass and width seem to be smaller than their Breit-Wigner values. © 2010 Elsevier B.V.

Duke Scholars

Author Haiyan Gao Physics

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Published In

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

DOI

10.1016/j.physletb.2010.09.052

ISSN

0370-2693

Publication Date

November 1, 2010

Volume

694

Issue

Start / End Page

123 / 128

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0105 Mathematical Physics

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Qiang, Y., Azimov, Y. I., Strakovsky, I. I., Briscoe, W. J., Gao, H., Higinbotham, D. W., & Nelyubin, V. V. (2010). Properties of the ∧(1520) resonance from high-precision electroproduction data. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 694(2), 123–128. https://doi.org/10.1016/j.physletb.2010.09.052

Qiang, Y., Y. I. Azimov, I. I. Strakovsky, W. J. Briscoe, H. Gao, D. W. Higinbotham, and V. V. Nelyubin. “Properties of the ∧(1520) resonance from high-precision electroproduction data.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 694, no. 2 (November 1, 2010): 123–28. https://doi.org/10.1016/j.physletb.2010.09.052.

Qiang Y, Azimov YI, Strakovsky II, Briscoe WJ, Gao H, Higinbotham DW, et al. Properties of the ∧(1520) resonance from high-precision electroproduction data. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2010 Nov 1;694(2):123–8.

Qiang, Y., et al. “Properties of the ∧(1520) resonance from high-precision electroproduction data.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 694, no. 2, Nov. 2010, pp. 123–28. Scopus, doi:10.1016/j.physletb.2010.09.052.

Qiang Y, Azimov YI, Strakovsky II, Briscoe WJ, Gao H, Higinbotham DW, Nelyubin VV. Properties of the ∧(1520) resonance from high-precision electroproduction data. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2010 Nov 1;694(2):123–128.

Published In

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

DOI

10.1016/j.physletb.2010.09.052

ISSN

0370-2693

Publication Date

November 1, 2010

Volume

694

Issue

Start / End Page

123 / 128

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0105 Mathematical Physics