vix.ing · top · new · best · stats

Bounds on the parameter of noncommutativity from supernova SN1987A

2009/01/08 by M. Haghighat, Mansour Haghighat · 21 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Energy (signal processing) #Lambda #Neutrino #Noncommutative and Quantum Gravity Theories #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum mechanics #Supernova #hep-ph

paper · pdf · doi:10.1103/physrevd.79.025011

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 79(2) (American Physical Society) · 7 pages, Accepted for publication in Physical Review D

arxiv created 2009/01/08 · openalex publication_date 2009/01/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We consider supernova SN1987A to find bounds on the parameter of noncommutativity, \ensuremathθ_\ensuremathμ\ensuremathν. The right-handed neutrino in the noncommutative standard model (NCSM) can directly couple to the photon and the Z-gauge boson. Therefore the observed flux of neutrinos from SN1987A can constrain the strength of the new couplings in the NCSM. We obtain two bounds on the NC-parameter, \ensuremathΛNC=1/√(|)\ensuremathθ|, with respect to escaping or trapping of the right-handed neutrinos inside the supernova which are \ensuremathΛNC\ensuremath\gtrsim3.7 TeV or \ensuremathΛNC\ensuremath\lesssim1 TeV, respectively. The excluded region 1 TeV\ensuremath\lesssim\ensuremathΛNC\ensuremath\lesssim3.7 TeV for the NC parameter is obtained for the first time. In fact \ensuremathΛNC\ensuremath\lesssim1 TeV is consistent with the existing bounds on \ensuremathΛNC and raises our hopes to find the NC effects in the LHC or even in the LEP. Meanwhile \ensuremathΛNC\ensuremath\gtrsim3.7 TeV is more stringent than the other bounds obtained from LEP and LHC considerations. Furthermore, since NC calculations are perturbative and are correct only up to the energy scale of the NC system \ensuremath\lesssim\ensuremathΛNC, then these bounds (which are obtained from the energy scale and considerably less than the energy scale of LEP and LHC) are more reliable.

Citations

Cited by