Scholars@Duke

Study of the energy dependence of the underlying event in proton-antiproton collisions

Publication ,  Journal Article
Aaltonen, T; Albrow, M; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, JA; Arisawa, T; Artikov, A; Asaadi, J ...
Published in: Physical Review D Particles Fields Gravitation and Cosmology
November 23, 2015
Published version (DOI)

We study charged particle production (pT>0.5 GeV/c, |η|<0.8) in proton-antiproton collisions at total center-of-mass energies s=300 GeV, 900 GeV, and 1.96 TeV. We use the direction of the charged particle with the largest transverse momentum in each event to define three regions of η-φ space: "toward", "away", and "transverse." The average number and the average scalar pT sum of charged particles in the transverse region are sensitive to the modeling of the "underlying event." The transverse region is divided into a MAX and MIN transverse region, which helps separate the "hard component" (initial and final-state radiation) from the "beam-beam remnant" and multiple parton interaction components of the scattering. The center-of-mass energy dependence of the various components of the event is studied in detail. The data presented here can be used to constrain and improve QCD Monte Carlo models, resulting in more precise predictions at the LHC energies of 13 and 14 TeV.

Duke Scholars

Alfred T. Goshaw
Author Alfred T. Goshaw Physics
Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics

Published In

Physical Review D Particles Fields Gravitation and Cosmology

DOI

10.1103/PhysRevD.92.092009

EISSN

1550-2368

ISSN

1550-7998

Publication Date

November 23, 2015

Volume

92

Issue

9

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

Citation

APA
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ICMJE
MLA
NLM
Aaltonen, T., Albrow, M., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., … Erbacher, R. (2015). Study of the energy dependence of the underlying event in proton-antiproton collisions. Physical Review D Particles Fields Gravitation and Cosmology, 92(9). https://doi.org/10.1103/PhysRevD.92.092009
Aaltonen, T., M. Albrow, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, et al. “Study of the energy dependence of the underlying event in proton-antiproton collisions.” Physical Review D Particles Fields Gravitation and Cosmology 92, no. 9 (November 23, 2015). https://doi.org/10.1103/PhysRevD.92.092009.
Aaltonen T, Albrow M, Amerio S, Amidei D, Anastassov A, Annovi A, et al. Study of the energy dependence of the underlying event in proton-antiproton collisions. Physical Review D Particles Fields Gravitation and Cosmology. 2015 Nov 23;92(9).
Aaltonen, T., et al. “Study of the energy dependence of the underlying event in proton-antiproton collisions.” Physical Review D Particles Fields Gravitation and Cosmology, vol. 92, no. 9, Nov. 2015. Scopus, doi:10.1103/PhysRevD.92.092009.
Aaltonen T, Albrow M, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Bae T, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bedeschi F, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Bromberg C, Brucken E, Budagov J, Budd HS, Burkett K, Busetto G, Bussey P, Butti P, Buzatu A, Calamba A, Camarda S, Campanelli M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Cho K, Chokheli D, Clark A, Clarke C, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Cremonesi M, Cruz D, Cuevas J, Culbertson R, D’Ascenzo N, Datta M, De Barbaro P, Demortier L, Deninno M, D’Errico M, Devoto F, Di Canto A, Di Ruzza B, Dittmann JR, Donati S, D’Onofrio M, Dorigo M, Driutti A, Ebina K, Edgar R, Elagin A, Erbacher R. Study of the energy dependence of the underlying event in proton-antiproton collisions. Physical Review D Particles Fields Gravitation and Cosmology. 2015 Nov 23;92(9).

Published In

Physical Review D Particles Fields Gravitation and Cosmology

DOI

10.1103/PhysRevD.92.092009

EISSN

1550-2368

ISSN

1550-7998

Publication Date

November 23, 2015

Volume

92

Issue

9

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences