Published December 2003 | Version v1
Journal article Metadata-only

Z lineshape versus fourth-generation masses

Creators

  • 1. Institute for Theoretical and Experimental Physics, Bol'shaya Cheremushkinskaya ul. 25, Moscow, 117259 (Russian Federation)
  • 2. ITEP, Moscow (Russian Federation)
  • 3. CPPM, IN2P3, CNRS, Universite Mediteranee, Marseilles (France)

Description

The dependence of the Z-resonance shape on the location of the threshold of the NN-bar production (N is the fourth-generation neutrino) is analyzed. The bounds on the existence of the fourth generation are derived from the comparison of the theoretical expression for the Z lineshape with the experimental data. The fourth generation is excluded at 95% C.L. for mN < 46.7 ± 0.2 GeV

Additional details

Identifiers

DOI
10.1134/1.1634324;

Publishing Information

Journal Title
Physics of Atomic Nuclei
Journal Volume
66
Journal Issue
12
Journal Page Range
p. 2169-2177
ISSN
1063-7788
CODEN
PANUEO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35057522
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data, Translation
Descriptors DEI
EFFECTIVE MASS; EXPERIMENTAL DATA; NEUTRINOS; PARTICLE PRODUCTION; QUARK MODEL; Z*BARYONS
Descriptors DEC
BARYONS; COMPOSITE MODELS; DATA; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HYPERONS; INFORMATION; LEPTONS; MASS; MASSLESS PARTICLES; MATHEMATICAL MODELS; NUMERICAL DATA; PARTICLE MODELS; STRANGE PARTICLES

Optional Information

Notes
Translated from Yadernaya Fizika, ISSN 0044-0027, 66, 2219-2227 (No. 12, 2003); (c) 2003 MAIK ''Nauka / Interperiodica''.