THE THIRD TYPE OF FERMION MIXING IN THE LEPTON AND QUARK INTERACTIONS WITH LEPTOQUARKS

被引：21

作者：

Kuznetsov, A. V. ^{[1
]}

Mikheev, N. V. ^{[1
]}

Serghienko, A. V. ^{[1
]}

机构：

[1] Yaroslavl State PG Demidov Univ, Dept Phys, Div Theoret Phys, Yaroslavl 150000, Russia

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2012年 / 27卷 / 11期

基金：

俄罗斯基础研究基金会;

关键词：

Quark-lepton symmetry; vector leptoquark; fermion mixing; VIOLATING TAU(-) DECAYS; MU-E CONVERSION; BRANCHING RATIO; SYMMETRY; CONSTRAINTS; SEARCH; LIMIT; MODEL; GAUGE; NUMBER;

D O I：

10.1142/S0217751X12500625

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The low-energy manifestations of a minimal extension of the electroweak standard model based on the quark-lepton symmetry SU(4) V. SU(2) L. GR of the Pati-Salam-type are analyzed. Given this symmetry the third type of mixing in the interactions of the SU(4) V leptoquarks with quarks and leptons is shown to be required. An additional arbitrariness of the mixing parameters could allow, in principle, to decrease noticeably the lower bound on the vector leptoquark mass originated from the low-energy rare processes, strongly suppressed in the standard model.

引用

页数：19

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