Nucleon-nucleon scattering in a strong external magnetic field and the neutrino emissivity

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.105015· OSTI ID:21503666

Bavarsad, E; Mohammadi, R ^[1]; Haghighat, M ^[1]

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1. Department of Physics, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of)

The nucleon-nucleon scattering in a large magnetic background is considered to find its potential to change the neutrino emissivity of the neutron stars. For this purpose, we consider the one-pion-exchange approximation to find the nucleon-nucleon (NN) cross section in a background field as large as 10{sup 15}-10{sup 18} G. We show that the NN cross section in neutron stars with temperatures in the range 0.1-5 MeV can be changed up to the 1 order of magnitude with respect to the one in the absence of the magnetic field. In the limit of the soft neutrino emission, the neutrino emissivity can be written in terms of the NN-scattering amplitude; therefore, the large magnetic fields can dramatically change the neutrino emissivity of the neutron stars as well.

• OSTI ID: 21503666
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 10; Other Information: DOI: 10.1103/PhysRevD.82.105015; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
CROSS SECTIONS
EMISSION
EMISSIVITY
MAGNETIC FIELDS
MEV RANGE 01-10
NEUTRINOS
NEUTRON STARS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PIONS
SCATTERING AMPLITUDES
AMPLITUDES
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CALCULATION METHODS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LEPTONS
MASSLESS PARTICLES
MESONS
MEV RANGE
OPTICAL PROPERTIES
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
PSEUDOSCALAR MESONS
STARS
SURFACE PROPERTIES