Soft electroweak bremsstrahlung: Theorems and astrophysical relevance

Details Soft electroweak bremsstrahlung: Theorems and astrophysical relevance Soft electroweak bremsstrahlung: Theorems and astrophysical relevance

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002phrvc..65f4007t&link_type=abstract

Physical Review C, vol. 65, Issue 6, id. 064007

Physics

7

Nucleon-Nucleon Interactions, Nuclear Matter Aspects Of Neutron Stars, Nuclear Forces

Scientific paper

We analyze the structure of the amplitudes for electroweak bremsstrahlung in nucleon-nucleon collisions, for the charged (N+N-->N+N+e-+ν¯e) and neutral (N+N-->N+N+νf+ν¯f) weak current. Theorems are derived for the matrix elements of the vector and axial-vector currents in the soft regime. A comparison is made with previous work, usually performed in the nonrelativistic limit and by using a one-pion exchange two-nucleon interaction in Born approximation. Such approaches are argued to be unrealistic. This is explicitly shown for the neutrino-pair emission process in neutron-neutron scattering. Our results are relevant for calculations of neutrino emissivities in supernovae and in cooling scenarios of neutron stars.

Affiliated with

Also associated with

No associations

Rating

Soft electroweak bremsstrahlung: Theorems and astrophysical relevance does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Soft electroweak bremsstrahlung: Theorems and astrophysical relevance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft electroweak bremsstrahlung: Theorems and astrophysical relevance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1200078