Strange-quark contribution to the ratio of neutral- to charged-current cross sections in neutrino-nucleus scattering

Journal Article · Wed Feb 15 04:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.025501· OSTI ID:20771295

Ventel, B.I. van der ^[1]; Piekarewicz, J ^[2]

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1. Department of Physics, Stellenbosch University, Stellenbosch 7600 (South Africa)
2. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)

A formalism based on a relativistic plane-wave impulse approximation is developed to investigate the strange-quark content g{sub A}{sup s} of the axial-vector form factor of the nucleon via neutrino-nucleus scattering. Nuclear structure effects are incorporated via an accurately calibrated relativistic mean-field model. The ratio of neutral- to charged-current cross sections is used to examine the sensitivity of this observable to g{sub A}{sup s}. For values of the incident neutrino energy in the range proposed by the FINeSSE Collaboration and by adopting a value of g{sub A}{sup s}=-0.19, a 30% enhancement in the ratio is observed relative to the g{sub A}{sup s}=0 result.

• OSTI ID: 20771295
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 73; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED CURRENTS
CROSS SECTIONS
FORM FACTORS
IMPULSE APPROXIMATION
MEAN-FIELD THEORY
NEUTRINO REACTIONS
NEUTRINOS
NUCLEAR STRUCTURE
NUCLEONS
QUANTUM FIELD THEORY
RELATIVISTIC RANGE
S QUARKS
SCATTERING
VECTORS