Measurement of particle production and inclusive differential cross sections in p(p)over-bar collisions at √s=1.96 TeV

被引：63

作者：

Aaltonen, T. ^{[1
,66
]}

Adelman, J. ^{[15
]}

Akimoto, T. ^{[57
]}

Alvarez Gonzalez, B. ^{[13
]}

Amerio, S. ^{[40
,41
]}

Amidei, D. ^{[33
]}

Anastassov, A. ^{[36
]}

Annovi, A. ^{[20
]}

Antos, J. ^{[64
,65
]}

Apollinari, G. ^{[18
]}

Apresyan, A. ^{[49
]}

Arisawa, T. ^{[59
]}

Artikov, A. ^{[16
]}

Ashmanskas, W. ^{[18
]}

Attal, A. ^{[4
]}

Aurisano, A. ^{[77
]}

Azfar, F. ^{[76
]}

Badgett, W. ^{[18
]}

Barbaro-Galtieri, A. ^{[28
]}

Barnes, V. E. ^{[49
]}

Barnett, B. A. ^{[25
]}

Barria, P. ^{[44
,46
]}

Bartsch, V. ^{[71
]}

Bauer, G. ^{[31
]}

Beauchemin, P.-H. ^{[32
,72
,73
,74
]}

Bedeschi, F. ^{[44
]}

Beecher, D. ^{[71
]}

Behari, S. ^{[25
]}

Bellettini, G. ^{[44
,45
]}

Bellinger, J. ^{[61
]}

Benjamin, D. ^{[17
]}

Beretvas, A. ^{[18
]}

Beringer, J. ^{[28
]}

Bhatti, A. ^{[51
]}

Binkley, M. ^{[18
]}

Bisello, D. ^{[40
,41
]}

Bizjak, I. ^{[71
]}

Blair, R. E. ^{[2
]}

Blocker, C. ^{[8
]}

Blumenfeld, B. ^{[25
]}

Bocci, A. ^{[17
]}

Bodek, A. ^{[50
]}

Boisvert, V. ^{[50
]}

Bolla, G. ^{[49
]}

Bortoletto, D. ^{[49
]}

Boudreau, J. ^{[48
]}

Boveia, A. ^{[12
]}

Brau, B. ^{[12
]}

Bridgeman, A. ^{[24
]}

Brigliadori, L. ^{[6
,7
]}

机构：

[1] Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland

[2] Argonne Natl Lab, Argonne, IL 60439 USA

[3] Univ Athens, GR-15771 Athens, Greece

[4] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[5] Baylor Univ, Waco, TX 76798 USA

[6] Ist Nazl Fis Nucl, I-40127 Bologna, Italy

[7] Univ Bologna, I-40127 Bologna, Italy

[8] Brandeis Univ, Waltham, MA 02254 USA

[9] Univ Calif Davis, Davis, CA 95616 USA

[10] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[11] Univ Calif San Diego, San Diego, CA 92093 USA

[12] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[13] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain

[14] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[15] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[16] Joint Inst Nucl Res, RU-141980 Dubna, Russia

[17] Duke Univ, Durham, NC 27708 USA

[18] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[19] Univ Florida, Gainesville, FL 32611 USA

[20] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[21] Univ Geneva, CH-1211 Geneva 4, Switzerland

[22] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[23] Harvard Univ, Cambridge, MA 02138 USA

[24] Univ Illinois, Urbana, IL 61801 USA

[25] Johns Hopkins Univ, Baltimore, MD 21218 USA

[26] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[27] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea

[28] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[29] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England

[30] Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain

[31] MIT, Cambridge, MA 02139 USA

[32] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada

[33] Univ Michigan, Ann Arbor, MI 48109 USA

[34] Inst Theoret & Expt Phys, ITEP, Moscow 117259, Russia

[35] Univ New Mexico, Albuquerque, NM 87131 USA

[36] Northwestern Univ, Evanston, IL 60208 USA

[37] Ohio State Univ, Columbus, OH 43210 USA

[38] Okayama Univ, Okayama 7008530, Japan

[39] Osaka City Univ, Osaka 588, Japan

[40] Ist Nazl Fis Nucl, Sez Padova Trento, I-35131 Padua, Italy

[41] Univ Padua, I-35131 Padua, Italy

[42] USAUniv Pierre & Marie Curie, LPNHE, CNRS IN2P3, UMR7585, F-75252 Paris, France

[43] Univ Penn, Philadelphia, PA 19104 USA

[44] Ist Nazl Fis Nucl, I-56127 Pisa, Italy

[45] Univ Pisa, I-56127 Pisa, Italy

[46] Univ Siena, I-56127 Pisa, Italy

[47] Scuola Normale Super Pisa, I-56127 Pisa, Italy

[48] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[49] Purdue Univ, W Lafayette, IN 47907 USA

[50] Univ Rochester, Rochester, NY 14627 USA

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 11期

关键词：

TRANSVERSE-MOMENTUM SPECTRA; MINIMUM-BIAS EVENTS; CENTRALLY PRODUCED HADRONS; MULTIPLICITY DEPENDENCE; UNDERLYING EVENT; DIFFRACTION DISSOCIATION; CHARGED-PARTICLES; ROOT-S; MASS; PERFORMANCE;

D O I：

10.1103/PhysRevD.79.112005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report a set of measurements of particle production in inelastic p (p) over bar collisions collected with a minimum-bias trigger at the Tevatron Collider with the CDF II experiment. The inclusive charged particle transverse momentum differential cross section is measured, with improved precision, over a range about ten times wider than in previous measurements. The former modeling of the spectrum appears to be incompatible with the high particle momenta observed. The dependence of the charged particle transverse momentum on the event particle multiplicity is analyzed to study the various components of hadron interactions. This is one of the observable variables most poorly reproduced by the available Monte Carlo generators. A first measurement of the event transverse energy sum differential cross section is also reported. A comparison with a PYTHIA prediction at the hadron level is performed. The inclusive charged-particle differential production cross section is fairly well reproduced only in the transverse momentum range available from previous measurements. At higher momentum the agreement is poor. The transverse energy sum is poorly reproduced over the whole spectrum. The dependence of the charged particle transverse momentum on the particle multiplicity needs the introduction of more sophisticated particle production mechanisms, such as multiple parton interactions, in order to be better explained.

引用

页数：22

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