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arXiv 0709.3019nucl-thhep-exhep-phnucl-ex
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中微子诱导相干π介子产生

Neutrino-induced coherent pion production

L. Alvarez-Ruso, L. S. Geng, S. Hirenzaki, M. J. Vicente Vacas, T. Leitner, U. Mosel

摘要:

我们已经研究了中微子诱导的相干π介子产生反应在最近的实验,如K2 K和MiniBooNE感兴趣的能量。该模型包括π介子、核子和Delta(1232)共振。考虑了产生机制中的介质效应和π波函数的畸变。我们发现一个强大的减少的截面,由于这些影响,并在最终的π介子的能量分布也有很大的修改。讨论了中性流产生中轴向N-Delta耦合C5 A(0)和相干分数对结果的敏感性。

英文摘要:

We have investigated the neutrino induced coherent pion production reaction at the energies of interest for recent experiments like K2K and MiniBooNE. The model includes pion, nucleon and the Delta(1232) resonance. Medium effects in the production mechanism and the distortion of the pion wave function are taken into account. We find a strong reduction of the cross section due to these effects and also substantial modifications in the energy distributions of the final pion. The sensitivity of the results on the axial N-Delta coupling C5A(0) and the coherent fraction in neutral-current pi0 production are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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