EVIDENCE FOR HARD SCATTERING OF HADRONIC CONSTITUENTS OF PHOTONS IN PHOTON PHOTON COLLISIONS AT TRISTAN

被引：56

作者：

TANAKA, R

KOJIMA, T

SASAKI, T

TOMIOKA, K

MATSUMOTO, S

ISHI, Y

MIYANO, K

MIYATA, H

KIRK, P

LIM, J

MCNEIL, RR

MYUNG, SS

CHENG, CP

GAO, WX

GU, P

YAN, WG

YE, MH

ABASHIAN, A

GOTOW, K

HU, KP

LAI, AZ

LOW, EH

MATTSON, ME

PIILONEN, L

STERNER, KL

LUSIN, S

ROSENFELD, C

WANG, ATM

WILSON, S

FRAUTSCHI, M

KAGAN, H

KASS, R

FRY, CA

BREEDON, RE

KO, W

LANDER, RL

MAESHIMA, K

MALCHOW, RL

ROWE, J

SMITH, JR

STUART, D

ABE, K

FUJII, Y

HIGASHI, Y

KURIHARA, Y

MAKI, A

NOZAKI, T

OMORI, T

SAGAWA, H

SAKAI, Y

机构：

[1] INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA

[2] SSC LAB,DALLAS,TX 75237

[3] KONAN UNIV,KOBE 658,JAPAN

[4] NIHON DENT COLL,NIIGATA 951,JAPAN

[5] UNIV PHILIPPINES,QUEZON CITY 3004,PHILIPPINES

[6] UNIV KOREA,SEOUL 136701,SOUTH KOREA

[7] KYUNGPOOK NATL UNIV,TAEGU 702701,SOUTH KOREA

[8] SAITAMA UNIV,URAWA,SAITAMA 338,JAPAN

[9] NIIGATA UNIV,NIIGATA 95021,JAPAN

[10] LOUISIANA STATE UNIV,BATON ROUGE,LA 70803

[11] VIRGINIA POLYTECH INST & STATE UNIV,BLACKSBURG,VA 24061

[12] UNIV S CAROLINA,COLUMBIA,SC 29208

[13] OHIO STATE UNIV,COLUMBUS,OH 43210

[14] UNIV CALIF DAVIS,DAVIS,CA 95616

[15] NATL LAB HIGH ENERGY PHYS,TSUKUBA,IBARAKI 305,JAPAN

[16] UNIV ROCHESTER,ROCHESTER,NY 14627

[17] RUTGERS STATE UNIV,PISCATAWAY,NJ 08854

[18] SAGA UNIV,SAGA 840,JAPAN

来源：

PHYSICS LETTERS B | 1992年 / 277卷 / 1-2期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/0370-2693(92)90982-A

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results of an experimental study of e+e- --> e+e- + hadrons in the kinematic regime for which the process is interpreted as hadron production in collisions of almost-real photons. The data sample corresponds to an integrated luminosity of 27.5 pb-1 and covers center-of-mass energies from 55 to 61.4 GeV. We observe more events than expected from the incoherent sum of quark-parton and vector-meson-dominance models, and we give a quantitative explanation of the excess by including the hard scattering of the hadronic constituents of the photons calculated with QCD.

引用

页码：215 / 220

页数：6

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