dorsal/arxiv
View SchemaA Reanalysis of the LSND Neutrino Oscillation Experiment
| Authors | A. Samana, F. Krmpotić, A. Mariano, R. Zukanovich Funchal |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0608055 |
| URL | https://arxiv.org/abs/nucl-th/0608055 |
| DOI | 10.1016/j.physletb.2006.08.071 |
| Journal | Phys.Lett.B642:100-105,2006 |
Abstract
We reanalyse the LSND neutrino oscillation results in the framework of the Projected Quasiparticle Random Phase Approximation (PQRPA), which is the only RPA model that treats the Pauli Principle correctly, and accounts satisfactorily for great majority of the weak decay observables around 12C. We have found that the employment of the PQRPA inclusive DIF 12C(nu_e,e-)12N cross-section, instead of the CRPA used by the LSND collaboration in the (nu_mu ->nu_e) oscillations study of the 1993-1995 data sample, leads to the following: 1) the oscillation probability is increased from (0.26 +/- 0.10 +/- 0.05) percents to (0.33 +/- 0.10 +/- 0.13) percents, and 2) the previously found consistence between the (sin^2 2theta, Delta m^2) confidence level regions for the (nu_mu -> nu_e) and the (bar{nu}_mu -> bar{nu}_e) oscillations is significantly diminished. These effects are not due to the difference in the uncertainty ranges for the neutrino-nucleus cross-section, but to the difference in the cross-sections themselves.
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"abstract": "We reanalyse the LSND neutrino oscillation results in the framework of the\nProjected Quasiparticle Random Phase Approximation (PQRPA), which is the only\nRPA model that treats the Pauli Principle correctly, and accounts\nsatisfactorily for great majority of the weak decay observables around 12C. We\nhave found that the employment of the PQRPA inclusive DIF 12C(nu_e,e-)12N\ncross-section, instead of the CRPA used by the LSND collaboration in the (nu_mu\n-\u003enu_e) oscillations study of the 1993-1995 data sample, leads to the\nfollowing: 1) the oscillation probability is increased from (0.26 +/- 0.10 +/-\n0.05) percents to (0.33 +/- 0.10 +/- 0.13) percents, and 2) the previously\nfound consistence between the (sin^2 2theta, Delta m^2) confidence level\nregions for the (nu_mu -\u003e nu_e) and the (bar{nu}_mu -\u003e bar{nu}_e) oscillations\nis significantly diminished. These effects are not due to the difference in the\nuncertainty ranges for the neutrino-nucleus cross-section, but to the\ndifference in the cross-sections themselves.",
"arxiv_id": "nucl-th/0608055",
"authors": [
"A. Samana",
"F. Krmpoti\u0107",
"A. Mariano",
"R. Zukanovich Funchal"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/j.physletb.2006.08.071",
"journal_ref": "Phys.Lett.B642:100-105,2006",
"title": "A Reanalysis of the LSND Neutrino Oscillation Experiment",
"url": "https://arxiv.org/abs/nucl-th/0608055"
},
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