NUCLEON SEA PARTON DENSITIES - DIFFERENCES FOR NEUTRINOS AND MUONS

被引：28

作者：

BARONE, V

GENOVESE, M

NIKOLAEV, NN

PREDAZZI, E

ZAKHAROV, BG

机构：

[1] IST NAZL FIS NUCL,PERUGIA,ITALY

[2] IST NAZL FIS NUCL,TURIN,ITALY

[3] UNIV TURIN,DIPARTMENTO FIS TEOR,I-10125 TURIN,ITALY

[4] ISI FDN,LD LANDAU INST,I-10133 TURIN,ITALY

[5] MV LOMONOSOV STATE UNIV,INST NUCL RES,MOSCOW 117259,USSR

来源：

PHYSICS LETTERS B | 1991年 / 268卷 / 02期

关键词：

D O I：

10.1016/0370-2693(91)90816-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The nucleon sea parton distributions probed by muons and neutrinos are different since excitation of ssBAR, ccBAR pairs by muons and csBAR, scBAR pairs by neutrinos have different mass thresholds. Natural starting points for the structure functions are c(v)(x, Q2) almost-equal-to s(v)(x, Q2), in v (vBAR) interactions and c-mu(x, Q2) << s-mu(x, Q2) in mu-interactions. Up to approximately 20% corrections to the conventional predictions for the neutrino structure functions at small x are predicted. The effects we discuss are in leading twist and persist numerically up to large values of Q2.

引用

页码：279 / 286

页数：8

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