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arXiv 1012.0267hep-phastro-ph.COhep-ex
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大短基线antinu_mu消失

Large Short-Baseline antinu_mu Disappearance

Carlo Giunti, Marco Laveder

摘要:

在3+1反中微子混合框架下,分析了LSND、KARMEN和MiniBooNE的短基线antinu_mu -> antinu_e振荡数据以及Bugey-3和CHOOZ反应堆实验中获得的短基线antinu_e消失数据,并考虑了MINOS的长基线antinu_mu消失观测和KamLAND的超长基线antinu_e消失观测。我们表明,数据的拟合意味着antinu_mu的短基线消失相对较大。对于0.2 <~ Δ m^2 <~ 1 eV^2产生的短基线antinu_mu消失,我们得到了有效振幅sin ^2 2 2 theta_{mu mu} >~ 0.1的预测,这可以在未来的实验中测量。

英文摘要:

We analyze the LSND, KARMEN and MiniBooNE data on short-baseline antinu_mu -> antinu_e oscillations and the data on short-baseline antinu_e disappearance obtained in the Bugey-3 and CHOOZ reactor experiments in the framework of 3+1 antineutrino mixing, taking into account the MINOS observation of long-baseline antinu_mu disappearance and the KamLAND observation of very-long-baseline antinu_e disappearance. We show that the fit of the data implies that the short-baseline disappearance of antinu_mu is relatively large. We obtain a prediction of an effective amplitude sin^2 2 theta_{mu mu} >~ 0.1 for short-baseline antinu_mu disappearance generated by 0.2 <~ Delta m^2 <~ 1 eV^2, which could be measured in future experiments.

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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