Quasielastic neutrinonucleus scattering
Abstract
We study the sensitivity of neutralcurrent neutrinonucleus scattering to the strangequark content of the axialvector form factor of the nucleon. A modelindependent formalism for this reaction is developed in terms of eight nuclearstructure functions. Taking advantage of the insensitivity of the ratio of proton (ν,p) to neutron (ν,n) yields to distortion effects, we compute all structure functions in a relativistic planewave impulse approximation approach. Further, by employing the notion of a boundstate nucleon propagator, closedform, analytic expressions for all nuclearstructure functions are developed in terms of an accurately calibrated relativistic meanfield model. Using a strangequark contribution to the axialvector form factor of g^{s}_{A} =0.19 , a significant enhancement in the protontoneutron yields is observed relative to one with g^{s}_{A} =0 .
 Publication:

Physical Review C
 Pub Date:
 March 2004
 DOI:
 10.1103/PhysRevC.69.035501
 arXiv:
 arXiv:nuclth/0310047
 Bibcode:
 2004PhRvC..69c5501V
 Keywords:

 24.10.Jv;
 24.70.+s;
 25.30.c;
 Relativistic models;
 Polarization phenomena in reactions;
 Leptoninduced reactions;
 Nuclear Theory
 EPrint:
 23 pages, 12 figures, Revtex, Submitted to Phys. Rev. C