Measurement of high-Q2 neutral-current e+p deep inelastic scattering cross-sections at HERA

被引：66

作者：

Breitweg, J

Chekanov, S

Derrick, R

Krakauer, D

Magill, S

Musgrave, B

Pellegrino, A

Repond, J

Stanek, R

Yoshida, R

Mattingly, MCK

Abbiendi, G

Anselmo, F

Antonioli, P

Bari, G

Basile, M

Bellagamba, L

Boscherini, D

Bruni, A

Bruni, G

Romeo, GC

Castellini, G

Cifarelli, L

Cindolo, F

Contin, A

Coppola, N

Corradi, M

De Pasquale, S

Giusti, P

Iacobucci, G

Laurenti, G

Levi, G

Margotti, A

Massam, T

Nania, R

Palmonari, F

Pesci, A

Polini, A

Sartorelli, G

Garcia, YZ

Zichichi, A

Amelung, C

Bornheim, A

Brock, I

Coböken, K

Crittenden, J

Deffner, R

Eckert, M

Hartmann, H

Heinloth, K

机构：

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

[2] Andrews Univ, Berrien Springs, MI 49104 USA

[3] Univ Bologna, Bologna, Italy

[4] Ist Nazl Fis Nucl, I-40126 Bologna, Italy

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

[6] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[7] Univ Calabria, Dept Phys, I-87036 Cosenza, Italy

[8] Ist Nazl Fis Nucl, I-87036 Cosenza, Italy

[9] Chonnam Natl Univ, Kwangju, South Korea

[10] Columbia Univ, Nevis Labs, Irvington, NY USA

[11] Inst Nucl Phys, Krakow, Poland

[12] Acad Min & Met, Fac Phys & Nucl Tech, Krakow, Poland

[13] Jagiellonian Univ, Dept Phys, Krakow, Poland

[14] DESY, D-2000 Hamburg, Germany

[15] DESY, Zeuthen, Germany

[16] Univ Florence, Florence, Italy

[17] Ist Nazl Fis Nucl, I-50125 Florence, Italy

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

[19] Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany

[20] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland

[21] Univ Hamburg, Inst Exp Phys 1, Hamburg, Germany

[22] Univ Hamburg, Inst Expt Phys 2, D-2000 Hamburg, Germany

[23] Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England

[24] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

[25] Forschungszentrum Julich, Inst Kernphys, D-5170 Julich, Germany

[26] KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, Japan

[27] Korea Univ, Seoul 136701, South Korea

[28] Kyungpook Natl Univ, Taegu 702701, South Korea

[29] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain

[30] McGill Univ, Dept Phys, Montreal, PQ, Canada

[31] Meiji Gakuin Univ, Fac Gen Educ, Yokohama, Kanagawa, Japan

[32] Moscow Phys Engn Inst, Moscow, Russia

[33] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia

[34] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[35] Univ Amsterdam, Amsterdam, Netherlands

[36] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[37] Univ Oxford, Dept Phys, Oxford, England

[38] Univ Padua, Dipartimento Fis, Padua, Italy

[39] Ist Nazl Fis Nucl, Padua, Italy

[40] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[41] Polytech Univ, Sagamihara, Kanagawa, Japan

[42] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[43] Ist Nazl Fis Nucl, I-00185 Rome, Italy

[44] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[45] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA

[46] Univ Siegen, Fachbereich Phys, D-5900 Siegen, Germany

[47] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys, IL-69978 Tel Aviv, Israel

[48] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[49] Tokyo Metropolitan Univ, Dept Phys, Tokyo, Japan

[50] Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy

来源：

EUROPEAN PHYSICAL JOURNAL C | 1999年 / 11卷 / 03期

关键词：

D O I：

10.1007/s100520050645

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The e(+)p neutral-current deep inelastic scattering differential cross-sections d sigma/dQ(2), for Q(2) > 400 GeV2, d sigma/dx and d sigma/dy, for Q(2) > 400, 2500 and 10000 GeV2, have been measured with the ZEUS detector at HERA. The data sample of 47.7 pb(-1) was collected at a center-of-mass energy of 300 GeV. The cross-section, d sigma/dQ(2), falls by six orders of magnitude between Q(2) = 400 and 40000 GeV2. The predictions of the Standard Model are in very good agreement with the data. Complementing the observations of time-like Z(0) contributions to fermion-antifermion annihilation! the data provide direct evidence for the presence of Z(0) exchange in the space-like region explored by deep inelastic scattering.

引用

页码：427 / 445

页数：19

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