Impact of nuclear effects on the determination of the nucleon axial mass

Journal Article · Thu Oct 01 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.073003· OSTI ID:21325201

Benhar, Omar ^[1]; Meloni, Davide ^[2]

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1. INFN and Department of Physics, 'Sapienza' Universita di Roma, I-00185 Roma (Italy)
2. Department of Physics and INFN, Universita 'Roma Tre', I-00146 Roma (Italy)

We analyze the influence of nuclear effects on the determination of the nucleon axial mass from nuclear cross sections. Our work is based on a formalism widely applied to describe electron-nucleus scattering data in the impulse approximation regime. The results of numerical calculations show that correlation effects, not taken into account by the relativistic Fermi gas model, sizably affect the Q{sup 2} dependence of the cross section. However, their inclusion does not appear to explain the large values of the axial mass recently reported by the K2K and MiniBooNE Collaborations.

• OSTI ID: 21325201
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 7; Other Information: DOI: 10.1103/PhysRevD.80.073003; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRELATIONS
CROSS SECTIONS
ELECTRON-NUCLEON INTERACTIONS
FERMI GAS MODEL
IMPULSE APPROXIMATION
MASS
NUCLEONS
RELATIVISTIC RANGE
SCATTERING