Published February 18, 2002 | Version v1
Journal article Metadata-only

Stringent neutron-star limits on large extra dimensions

Creators

  • 1. Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut), Foehringer Ring 6, 80805 Munich (Germany)
  • 2. NORDITA, Blegdamsvej 17, 2100 Copenhagen (Denmark)

Description

Supernovae (SNe) are copious sources for Kaluza-Klein (KK) gravitons which are generic for theories with large extra dimensions. These massive particles are produced with average velocities ≅0.5c so that many of them are gravitationally retained by the SN core. Every neutron star thus has a halo of KK gravitons which decay into νν-bar, e+e- , and γγ on time scales ≅109 years. The EGRET γ -flux limits (Eγ≅100 MeV ) for nearby neutron stars constrain the compactification scale for n=2 extra dimensions to M > or approx. 500 TeV , and M > or approx. 30 TeV for n=3 . The requirement that neutron stars are not excessively heated by KK decays implies M > or approx. 1700 TeV for n=2 , and M > or approx. 60 TeV for n=3

Additional details

Identifiers

DOI
10.1103/PhysRevLett.88.071301;
arXiv
arXiv:hep-ph/0110067v3;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
88
Journal Issue
7
Journal Page Range
p. 071301-071301.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35022179
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANTINEUTRINOS; COSMIC GAMMA SOURCES; COSMIC RADIATION; ELECTRONS; GAMMA RADIATION; GRAVITONS; KALUZA-KLEIN THEORY; NEUTRINOS; NEUTRON STARS; NUCLEAR HALOS; POSITRONS; SUPERNOVAE; TEV RANGE 10-100; TEV RANGE 100-1000
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BINARY STARS; COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; ERUPTIVE VARIABLE STARS; FERMIONS; FIELD THEORIES; GRAVITATIONAL RADIATION; IONIZING RADIATIONS; LEPTONS; MASSLESS PARTICLES; MATTER; NEUTRINOS; POSTULATED PARTICLES; RADIATIONS; STARS; TEV RANGE; UNIFIED-FIELD THEORIES; VARIABLE STARS

Optional Information

Notes
(c) 2002 The American Physical Society