Measurement of the shape of the boson-transverse momentum distribution in p(p)over-bar→Z/γ*→e+e-+X events produced at √s=1.96 TeV

被引：92

作者：

Abazov, V. M. ^{[1
]}

Abbott, B.

Abolins, M.

Acharya, B. S. ^{[37
]}

Adams, M.

Adams, T. ^{[57
]}

Aguilo, E. ^{[7
,8
,9
,10
]}

Ahn, S. H. ^{[39
]}

Ahsan, M.

Alexeev, G. D. ^{[1
]}

Alkhazov, G. ^{[48
]}

Alton, A.

Alverson, G.

Alves, G. A. ^{[3
]}

Anastasoaie, M. ^{[44
]}

Ancu, L. S. ^{[44
]}

Andeen, T.

Anderson, S. ^{[55
]}

Andrieu, B. ^{[22
,23
]}

Anzelc, M. S.

Arnoud, Y. ^{[18
]}

Arov, M.

Arthaud, M. ^{[24
]}

Askew, A. ^{[57
]}

Asman, B. ^{[49
,50
,51
,52
]}

Jesus, A. C. S. Assis ^{[4
]}

Atramentov, O. ^{[57
]}

Autermann, C. ^{[29
]}

Avila, C. ^{[12
]}

Ay, C. ^{[32
]}

Badaud, F. ^{[17
]}

Baden, A.

Bagby, L.

Baldin, B.

Bandurin, D. V.

Banerjee, S. ^{[37
]}

Banerjee, P. ^{[37
]}

Barberis, E.

Barfuss, A. -F. ^{[19
]}

Bargassa, P.

Baringer, P.

Barreto, J. ^{[3
]}

Bartlett, J. F.

Bassler, U. ^{[24
]}

Bauer, D. ^{[54
]}

Beale, S. ^{[7
,8
,9
,10
]}

Bean, A.

Begalli, M. ^{[4
]}

Begel, M.

Belanger-Champagne, C. ^{[49
,50
,51
,52
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Univ Buenos Aires, Buenos Aires, DF, Argentina

[3] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil

[4] Univ Estado Rio De Janeiro, Rio De Janeiro, Brazil

[5] Univ Fed ABC, Santo Andre, Brazil

[6] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil

[7] Univ Alberta, Edmonton, AB, Canada

[8] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

[9] York Univ, Toronto, ON M3J 2R7, Canada

[10] McGill Univ, Montreal, PQ, Canada

[11] Univ Sci & Technol China, Hefei 230026, Peoples R China

[12] Univ Los Andes, Bogota, Colombia

[13] Charles Univ Prague, Ctr Particle Phys, Prague, Czech Republic

[14] Czech Tech Univ Prague, CR-16635 Prague, Czech Republic

[15] Acad Sci Czech Republic, Inst Phys, Ctr Particle Phys, Prague, Czech Republic

[16] Univ San Francisco, Quito, Ecuador

[17] Univ Clermont Ferrand, CNRS, IN2P3, Phys Corpusculaire Lab, Clermont Ferrand, France

[18] Univ Grenoble 1, CNRS, IN2P3, Lab Phys Subatom & Cosmol, Grenoble, France

[19] Univ Aix Marseille 2, CNRS, IN2P3, CPPM, Marseille, France

[20] CNRS, IN2P3, Lab Accelerateur Lineaire, F-91405 Orsay, France

[21] Univ Paris 11, Orsay, France

[22] Univ Paris 06, CNRS, IN2P3, LPNHE, Paris, France

[23] Univ Paris 07, CNRS, IN2P3, LPNHE, Paris, France

[24] CEA, DAPNIA Serv Phys Particules, Saclay, France

[25] Univ Strasbourg 1, IPHC, Strasbourg, France

[26] Univ Haute Alsace, CNRS, IN2P3, Strasbourg, France

[27] Univ Lyon 1, CNRS, IN2P3, IPNL, F-69622 Villeurbanne, France

[28] Univ Lyon, Lyon, France

[29] Rhein Westfal TH Aachen, III Phys Inst A, Aachen, Germany

[30] Univ Bonn, Inst Phys, D-5300 Bonn, Germany

[31] Univ Freiburg, Inst Phys, Freiburg, Germany

[32] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany

[33] Univ Munich, Munich, Germany

[34] Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[35] Panjab Univ, Chandigarh 160014, India

[36] Univ Delhi, Delhi 110007, India

[37] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[38] Univ Coll Dublin, Dublin 2, Ireland

[39] Korea Univ, Korea Detector Lab, Seoul 136701, South Korea

[40] Sungkyunkwan Univ, Suwon, South Korea

[41] CINVESTAV, Mexico City 14000, DF, Mexico

[42] FOM, Inst NIKHEF, NL-1098 SJ Amsterdam, Netherlands

[43] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands

[44] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands

[45] Inst Theoret & Expt Phys, Moscow 117259, Russia

[46] Moscow MV Lomonosov State Univ, Moscow, Russia

[47] Inst High Energy Phys, Protvino, Russia

[48] Petersburg Nucl Phys Inst, St Petersburg, Russia

[49] Lund Univ, Lund, Sweden

[50] Royal Inst Technol, Stockholm, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 10期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.100.102002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a measurement of the shape of the Z/gamma* boson transverse momentum (q(T)) distribution in p (p) over bar -> Z/gamma(*)-> e(+)e(-)+X events at a center-of-mass energy of 1.96 TeV using 0.98 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron collider. The data are found to be consistent with the resummation prediction at low q(T), but above the perturbative QCD calculation in the region of q(T)> 30 GeV/c. Using events with q(T)< 30 GeV/c, we extract the value of g(2), one of the nonperturbative parameters for the resummation calculation. Data at large boson rapidity y are compared with the prediction of resummation and with alternative models that employ a resummed form factor with modifications in the small Bjorken x region of the proton wave function.

引用

页数：7

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