Global study of electron-quark contact interactions

被引：61

作者：

Barger, V

Cheung, K

Hagiwara, K

Zeppenfeld, D

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[2] Univ Texas, Ctr Particle Phys, Austin, TX 78712 USA

[3] KEK, Theory Grp, Tsukuba, Ibaraki 305, Japan

[4] Univ Tokyo, ICEPP, Bunkyo Ku, Tokyo 113, Japan

来源：

PHYSICAL REVIEW D | 1998年 / 57卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.57.391

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform a global fit of data relevant to eeqq contact interactions, including,deep inelastic scattering at high Q(2) from ZEUS and H1, atomic physics parity violation in cesium from JILA, polarized e(-) on nuclei scattering experiments at SLAC, Mainz and Bates, Drell-Yan production at the Fermilab Tevatron, the total hadronic cross section sigma(had) at CERN LEP, and neutrino-nucleon scattering from CCFR. With only the new DESY HERA data, the presence of contact interactions improves the fit compared to the standard model. When other data sets are included, the size of the contact contributions is reduced and the overall fit represents no real improvement over the standard model. [S0556-2821(98)00201-X].

引用

页码：391 / 404

页数：14

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