MEASUREMENT OF THE STRANGE SEA DISTRIBUTION USING NEUTRINO CHARM PRODUCTION

被引：162

作者：

RABINOWITZ, SA

ARROYO, C

BACHMANN, KT

BAZARKO, AO

BOLTON, T

FOUDAS, C

KING, BJ

LEFMANN, WC

LEUNG, WC

MISHRA, SR

OLTMAN, E

QUINTAS, PZ

SCIULLI, FJ

SELIGMAN, WG

SHAEVITZ, MH

MERRITT, FS

OREGLIA, MJ

SCHUMM, BA

BERNSTEIN, RH

BORCHERDING, F

FISK, HE

LAMM, MJ

MARSH, W

MERRITT, KWB

SCHELLMAN, HM

YOVANOVITCH, DD

BODEK, A

BUDD, HS

DEBARBARO, P

SAKUMOTO, WK

KINNEL, T

SANDLER, PH

SMITH, WH

机构：

[1] UNIV CHICAGO,CHICAGO,IL 60637

[2] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510

[3] UNIV ROCHESTER,ROCHESTER,NY 14627

[4] UNIV WISCONSIN,MADISON,WI 53706

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.70.134

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A high-statistics study by the Columbia-Chicago-Fermilab-Rochester Collaboration of opposite-sign dimuon events induced by neutrino-nucleon scattering at the Fermilab Tevatron is presented. A sample of 5044 nu(mu) and 1062 v(mu)BAR induced mu-/+mu+/- events with P(mu1) greater-than-or-equal-to 9 GeV/c, P(mu2) greater-than-or-equal-to 5 GeV/c, 30 less-than-or-equal-to E(nu) less-than-or-equal-to 600 GeV, and [Q2]=22.2 GeV2/c2 is observed. The data support the slow-rescaling model of charm production with a value of m(c)=1.31+/-0.24 GeV/c2. The first measurement of the Q2 dependence of the nucleon strange quark distribution xs(x) is presented. The data yield the Cabibbo-Kobayashi-Maskawa matrix element \V(cd)\=0.209+/-0.012 and the nucleon fractional strangeness content eta(s)=0.064(-0.007)+0.008.

引用

页码：134 / 137

页数：4

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