Published 1999 | Version v1
Book Metadata-only

New limits on scalar leptoquark masses from S, T, U in the minimal model with the four-color symmetry

Creators

  • 1. Div. of Theoretical Physics, Dept. of Physics, Yaroslavl State Univ., Yaroslavl (Russian Federation)

Description

The bounds on the scalar leptoquark masses from S-, T-, U-parameters of Peskin-Takeuchi are investigated in frame of the minimal model with the four color symmetry with taking the scalar potential of the scalar leptoquark doublets interaction into account. Using the mass matrix and mixing angle resulted from this potential the new bounds on the scalar leptoquark masses are obtained from the current experimental data on S, T, U. It is shown that the light scalar leptoquarks (with masses below 1 TeV) are favored and improve the agreement of the experimental values of S, T, U with the theory

Abstract (Russian)

В рамках минимальной модели с четырехцветной симметрией исследуются ограничения на массы скалярных лептокварков, вытекающие из S, T и U параметров Пескина-Такеучи. Учитывается скалярный потенциал взаимодействия дублетов скалярных лептокварков. С использованием массовой матрицы и угла смешивания, полученных из этого потенциала, определены новые ограничения на массы скалярных лептокварков, исходя из новых экспериментальных данных для S, T и U. Показано, что более предпочтительны легкие скалярные лептокварки с массами меньше 1 ТэВ, что улучшает согласие экспериментальных значений S, T и U с теорией
Part of:
Fundamental problems of high energy physics and field theory. Proceedings of the 22. International workshop on high energy physics and field theory

Additional details

Publishing Information

Publisher
State Research Center of Russia, Institute for High Energy Physics
Imprint Place
Protvino (Russian Federation)
ISBN
5-88738-027-5
Imprint Title
Fundamental problems of high energy physics and field theory. Proceedings of the 22. International workshop on high energy physics and field theory
Imprint Pagination
299 p.
Journal Page Range
p. 72-78

Conference

Title
22. International workshop on high energy physics and field theory
Dates
23-25 Jun 1999
Place
Protvino (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
32039125
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COLOR MODEL; COMPARATIVE EVALUATIONS; LIMITING VALUES; MASS; MIXING RATIO; QUARKS; SCALAR MESONS; STANDARD MODEL; SYMMETRY
Descriptors DEC
BOSONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; HADRONS; MATHEMATICAL MODELS; MESONS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; UNIFIED GAUGE MODELS

Optional Information

Notes
13 refs., 2 figs.