Published November 1, 2007 | Version v1
Journal article Metadata-only

Pion leptonic decays and supersymmetry

Creators

  • 1. University of Wisconsin, Madison, Wisconsin, 53706-1390 (United States)
  • 2. California Institute of Technology, Pasadena, California 91125 (United States)
  • 3. Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

Description

We compute supersymmetric contributions to pion leptonic (πl2) decays in the minimal supersymmetric standard model (MSSM). When R-parity is conserved, the largest contributions to the ratio Re/μ≡Γ[π+→e+νe(γ)]/Γ[π+→μ+νμ(γ)] arise from one-loop (V-A) x (V-A) corrections. These contributions can be potentially as large as the sensitivities of upcoming experiments; if measured, they would imply significant bounds on the chargino and slepton sectors complementary to current collider limits. We also analyze R-parity-violating interactions, which may produce a detectable deviation in Re/μ while remaining consistent with all other precision observables

Additional details

Identifiers

DOI
10.1103/PhysRevD.76.095017;
arXiv
arXiv:0705.0028v2;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
76
Journal Issue
9
Journal Page Range
p. 095017-095017.12
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39052819
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ACCURACY; CORRECTIONS; ELECTRON NEUTRINOS; LEPTONIC DECAY; MUON NEUTRINOS; MUONS; PARITY; PIONS PLUS; SENSITIVITY; SPARTICLES; STANDARD MODEL; SUPERSYMMETRY
Descriptors DEC
BASIC INTERACTIONS; BOSONS; DECAY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; HADRONS; INTERACTIONS; LEPTONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MESONS; NEUTRINOS; PARTICLE DECAY; PARTICLE MODELS; PARTICLE PROPERTIES; PIONS; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SYMMETRY; UNIFIED GAUGE MODELS; WEAK INTERACTIONS; WEAK PARTICLE DECAY

Optional Information

Notes
(c) 2007 The American Physical Society