Unified approach for nucleon knock-out and coherent and incoherent pion production in neutrino interactions with nuclei

被引：293

作者：

Martini, M. ^{[1
,2
,3
]}

Ericson, M. ^{[1
,3
]}

Chanfray, G. ^{[1
]}

Marteau, J. ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, IPN Lyon, IN2P3, F-69622 Villeurbanne, France

[2] Univ Bari, I-70126 Bari, Italy

[3] CERN, Dept Phys, Theory Grp, CH-1211 Geneva, Switzerland

来源：

PHYSICAL REVIEW C | 2009年 / 80卷 / 06期

关键词：

PI(0) PRODUCTION; AXIAL-VECTOR; ENERGY; DELTA; CURRENTS;

D O I：

10.1103/PhysRevC.80.065501

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We present a theory of neutrino interactions with nuclei aimed at the description of the partial cross sections, namely quasielastic and multinucleon emission, coherent and incoherent single-pion production. For this purpose, we use the theory of nuclear responses treated in the random-phase approximation, which allows a unified description of these channels. It is particularly suited for the coherent pion production where collective effects are important, whereas they are moderate in the other channels. We also study the evolution of the neutrino cross sections with the mass number from carbon to calcium. We compare our approach to the available neutrino experimental data on carbon. We put a particular emphasis on the multinucleon channel, which at present is not easily distinguishable from the quasielastic events. This component turns out to be quite relevant for the interpretation of experiments (K2K, MiniBooNE, SciBooNE). It can account in particular for the unexpected behavior of the quasielastic cross section.

引用

页数：16

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