Radiative corrections in neutrino-deuterium disintegration

被引：42

作者：

Kurylov, A ^{[1
]}

Ramsey-Musolf, MJ

Vogel, P

机构：

[1] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA

[2] CALTECH, Dept Phys, Pasadena, CA 91125 USA

[3] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

来源：

PHYSICAL REVIEW C | 2002年 / 65卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevC.65.055501

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：

The radiative corrections of order alpha for the charged- and neutral-current neutrino-deuterium disintegration for energies relevant to the SNO experiment are evaluated. Particular attention is paid to the issue of the bremsstrahlung detection threshold. It is shown that the radiative corrections to the total cross section for the charged current reaction are independent of that threshold, as they must be for consistency, and amount to a slowly decreasing function of the neutrino energy E-nu, varying from about 4% at low energies to 3% at the end of the B-8 spectrum. The differential cross section corrections, on the other hand, do depend on the bremsstrahlung detection threshold. Various choices of the threshold are discussed. It is shown that for a realistic choice of the threshold and for the actual electron energy threshold of the SNO detector, the deduced B-8 nu(e) flux should be decreased by about 2%. The radiative corrections to the neutral-current reaction are also evaluated.

引用

页数：12

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