Measurement of the proton structure function F-2 and sigma(gamma*p)(tot) at low Q(2) and very low x at HERA

被引：175

作者：

Breitweg, J

Derrick, M

Krakauer, D

Magill, S

Mikunas, D

Musgrave, B

Repond, J

Stanek, R

Talaga, RL

Yoshida, R

Zhang, H

Mattingly, MCK

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

Corradi, M

DePasquale, S

Gialas, I

Giusti, P

Iacobucci, G

Laurenti, G

Levi, G

Margotti, A

Massam, T

Nania, R

Palmonari, F

Pesci, A

Polini, A

Ricci, F

Sartorelli, G

Garcia, YZ

Zichichi, A

Amelung, C

Bornheim, A

Brock, I

Coboken, K

Crittenden, J

Deffner, R

Eckert, M

Grothe, M

机构：

[1] ANDREWS UNIV, BERRIEN SPRINGS, MI 49104 USA

[2] UNIV BOLOGNA, BOLOGNA, ITALY

[3] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY

[4] UNIV BONN, INST PHYS, D-5300 BONN, GERMANY

[5] UNIV BRISTOL, HH WILLS PHYS LAB, BRISTOL BS8 1TL, AVON, ENGLAND

[6] UNIV CALABRIA, DEPT PHYS, I-87036 COSENZA, ITALY

[7] IST NAZL FIS NUCL, COSENZA, ITALY

[8] CHONNAM NATL UNIV, KWANGJU, SOUTH KOREA

[9] COLUMBIA UNIV, NEVIS LABS, IRVINGTON, NY USA

[10] INST NUCL PHYS, KRAKOW, POLAND

[11] ACAD MIN & MET, FAC PHYS & NUCL TECHNIQUES, KRAKOW, POLAND

[12] JAGIELLONIAN UNIV, DEPT PHYS, KRAKOW, POLAND

[13] DESY, D-2000 HAMBURG, GERMANY

[14] DESY, IFH, ZEUTHEN, GERMANY

[15] UNIV FLORENCE, FLORENCE, ITALY

[16] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY

[17] IST NAZL FIS NUCL, NAZL FRASCATI LAB, I-00044 FRASCATI, ITALY

[18] UNIV FREIBURG, FAK PHYS, D-7800 FREIBURG, GERMANY

[19] UNIV GLASGOW, DEPT PHYS & ASTRON, GLASGOW G12 8QQ, LANARK, SCOTLAND

[20] UNIV HAMBURG, INST EXPT PHYS 1, HAMBURG, GERMANY

[21] UNIV HAMBURG, INST EXPT PHYS 2, D-2000 HAMBURG, GERMANY

[22] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED, HIGH ENERGY NUCL PHYS GRP, LONDON, ENGLAND

[23] UNIV IOWA, DEPT PHYS & ASTRON, IOWA CITY, IA 52242 USA

[24] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, INST KERNPHYS, D-5170 JULICH, GERMANY

[25] KEK, INST PARTICLE & NUCL STUDIES, TSUKUBA, IBARAKI, JAPAN

[26] KOREA UNIV, SEOUL 136701, SOUTH KOREA

[27] UNIV AUTONOMA MADRID, DEPT FIS TEOR, MADRID, SPAIN

[28] MCGILL UNIV, DEPT PHYS, MONTREAL, PQ, CANADA

[29] MEIJI GAKUIN UNIV, FAC GEN EDUC, YOKOHAMA, KANAGAWA, JAPAN

[30] MOSCOW PHYS ENGN INST, MOSCOW, RUSSIA

[31] MOSCOW MV LOMONOSOV STATE UNIV, INST NUCL PHYS, MOSCOW, RUSSIA

[32] NIKHEF H, NL-1009 DB AMSTERDAM, NETHERLANDS

[33] UNIV AMSTERDAM, AMSTERDAM, NETHERLANDS

[34] OHIO STATE UNIV, DEPT PHYS, COLUMBUS, OH 43210 USA

[35] UNIV OXFORD, DEPT PHYS, OXFORD, ENGLAND

[36] UNIV PADUA, DIPARTIMENTO FIS, PADUA, ITALY

[37] IST NAZL FIS NUCL, PADUA, ITALY

[38] PENN STATE UNIV, DEPT PHYS, UNIVERSITY PK, PA 16802 USA

[39] POLYTECH UNIV, SAGAMIHARA, KANAGAWA, JAPAN

[40] UNIV ROMA LA SAPIENZA, DIPARTIMENTO FIS, I-00185 ROME, ITALY

[41] IST NAZL FIS NUCL, ROME, ITALY

[42] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND

[43] UNIV CALIF SANTA CRUZ, SANTA CRUZ, CA 95064 USA

[44] UNIV GESAMTHSCH SIEGEN, FACHBEREICH PHYS, D-5900 SIEGEN, GERMANY

[45] TEL AVIV UNIV, RAYMOND & BEVERLY SACKLER FAC EXACT SCI, SCH PHYS, IL-69978 TEL AVIV, ISRAEL

[46] UNIV TOKYO, DEPT PHYS, TOKYO 113, JAPAN

[47] TOKYO METROPOLITAN UNIV, DEPT PHYS, TOKYO, JAPAN

[48] UNIV TURIN, DIPARTIMENTO FIS SPERIMENTALE, TURIN, ITALY

[49] IST NAZL FIS NUCL, I-10125 TURIN, ITALY

[50] UNIV TURIN, FAC SCI 2, ALESSANDRIA, ITALY

来源：

PHYSICS LETTERS B | 1997年 / 407卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)00905-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A small electromagnetic sampling calorimeter, installed in the ZEUS experiment in 1995, significantly enhanced the acceptance for very low x and low Q(2) inelastic neutral current scattering, e(+)p --> e(+)X, at HERA. A measurement of the proton structure function F-2 and the total virtual photon-proton (gamma*p) cross-section is presented for 0.11 less than or equal to Q(2) less than or equal to 0.65 GeV2 and 2 x 10(-6) less than or equal to x less than or equal to 6 x 10(-5), corresponding to a range in the gamma*p c.m. energy of 100 less than or equal to W less than or equal to 230 GeV. Comparisons with various models are also presented. (C) 1997 Published by Elsevier Science B.V.

引用

页码：432 / 448

页数：17

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