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Prézeau G, Kurylov A. Neutrino mass constraints on mu decay and pi0--> nunu. PHYSICAL REVIEW LETTERS 2005; 95:101802. [PMID: 16196918 DOI: 10.1103/physrevlett.95.101802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2004] [Indexed: 05/04/2023]
Abstract
In this Letter, we show that upper limits on the neutrino mass translate into upper limits on the class of neutrino-matter interactions that can generate loop corrections to the neutrino mass matrix. We apply our results to mu and pi decays and derive model-independent limits on six of the ten parameters used to parametrize contributions to mu decay that do not belong to the standard model. These upper limits provide improved constraints on the five Michel parameters, rho, xi', xi", alpha, alpha', that exceed Particle Data Group constraints by at least one order of magnitude. For pi(0) --> nunu we find, for the branching ratio, B(pi(0) --> nunu) < 10(-10).
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Affiliation(s)
- Gary Prézeau
- Jet Propulsion Laboratory/California Institute of Technology, Pasadena, 91109, USA
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Auerbach LB, Burman RL, Caldwell DO, Church ED, Cochran AK, Donahue JB, Fazely AR, Garvey GT, Gunasingha RM, Imlay RL, Kahrimanis G, Louis WC, Majkic R, Malik A, McIlhany KL, Metcalf WJ, Mills GB, Rupnik D, Sandberg VD, Smith D, Somodi RF, Stancu I, Strossman WD, Sung M, Tayloe R, VanDalen GJ, Vernon W, Wadia N, White DH, Yellin S, Yi H. Search for pi(0)-->nu(mu)nu(mu) decays in the LSND detector. PHYSICAL REVIEW LETTERS 2004; 92:091801. [PMID: 15089459 DOI: 10.1103/physrevlett.92.091801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2003] [Indexed: 05/24/2023]
Abstract
We observe a net beam excess of 8.7+/-6.3(stat)+/-2.4(syst) events, above 160 MeV, resulting from the charged-current reaction of nu(micro) and/or nu;(mu) on C and H in the LSND detector. No beam-related muon background is expected in this energy regime. Within an analysis framework of pi(0)-->nu(mu)nu;(mu), we set a direct upper limit for this branching ratio of Gamma(pi(0)-->nu(mu)nu;(mu))/Gamma(pi(0)-->all)<1.6 x 10(-6) at 90% confidence level.
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Affiliation(s)
- L B Auerbach
- Temple University, Philadelphia, Pennsylvania 19122, USA
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Adler S, Atiya MS, Chiang IH, Frank JS, Haggerty JS, Kycia TF, Li KK, Littenberg LS, Sambamurti A, Stevens A, Strand RC, Witzig C, Louis WC, Akerib DS, Ardebili M, Convery MR, Ito MM, Marlow DR, McPherson RA, Meyers PD, Selen MA, Shoemaker FC, Smith AJ, Blackmore EW, Bryman DA, Felawka L, Kitching P, Konaka A, Kujala VA, Kuno Y, Macdonald JA, Nakano T, Numao T, Padley P, Poutissou JM, Poutissou R, Roy J, Soluk R, Turcot AS. Search for the decay K+--> pi + nu nu -bar. PHYSICAL REVIEW LETTERS 1996; 76:1421-1424. [PMID: 10061719 DOI: 10.1103/physrevlett.76.1421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Marciano WJ, Parsa Z. Rare kaon decays with "missing energy". PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1996; 53:R1-R5. [PMID: 10019820 DOI: 10.1103/physrevd.53.r1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Gregores EM, Mori F, Natale AA, Novaes SF, Spehler D. Remarks on the process gamma gamma --> nu nu -bar in astrophysics. Int J Clin Exp Med 1995; 51:4587-4590. [PMID: 10018933 DOI: 10.1103/physrevd.51.4587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Atiya MS, Chiang IH, Frank JS, Haggerty JS, Ito MM, Kycia TF, Li KK, Littenberg LS, Sambamurti A, Stevens A, Strand RC, Louis WC, Akerib DS, Marlow DR, Meyers PD, Selen MA, Shoemaker FC, Smith AJ, Blackmore EW, Bryman DA, Felawka L, Kitching P, Konaka A, Kuno Y, Macdonald JA, Numao T, Padley P, Poutissou J, Poutissou R, Roy J, Soluk R, Turcot AS. Search for the decays K+--> pi + nu nu -bar and K+--> pi +X0 for 150<MX0<250 MeV/c2. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1993; 48:R1-R4. [PMID: 10016100 DOI: 10.1103/physrevd.48.r1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Atiya MS, Chiang IH, Frank JS, Haggerty JS, Ito MM, Kycia TF, Li KK, Littenberg LS, Sambamurti A, Stevens A, Strand RC, Louis WC, Akerib DS, Marlow DR, Meyers PD, Selen MA, Shoemaker FC, Smith AJ, Blackmore EW, Bryman DA, Felawka L, Kitching P, Konaka A, Kuno Y, Macdonald JA, Numao T, Padley P, Poutissou JM, Poutissou R, Roy J, Soluk R, Turcot AS. Search for the decay K+--> pi + nu nu -bar. PHYSICAL REVIEW LETTERS 1993; 70:2521-2524. [PMID: 10053584 DOI: 10.1103/physrevlett.70.2521] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Atiya MS, Chiang IH, Frank JS, Haggerty JS, Ito MM, Kycia TF, Li KK, Littenberg LS, Stevens AJ, Sambamurti A, Strand RC, Louis WC, Akerib DS, Marlow DR, Meyers PD, Selen MA, Shoemaker FC, Smith AJ, Blackmore EW, Bryman DA, Felawka L, Kitching P, Konaka A, Kuno Y, Macdonald JA, Numao T, Padley P, Poutissou JM, Poutissou R, Roy J, Turcot AS. Search for the decay pi 0--> gamma +X. PHYSICAL REVIEW LETTERS 1992; 69:733-736. [PMID: 10047019 DOI: 10.1103/physrevlett.69.733] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Waltham C, Bernasconi T, Egli S, Hermes E, Muheim F, Niebuhr C, Pruys H, Bertl W, Grossmann-Handschin M, Lordong N, Vermeulen D, Walter HK, Eichler R, Felawka L, Kozlowski T, Playfer S, Martino J. Search for weakly interacting neutral bosons produced in pi -p interactions at rest and decaying into e+e- pairs. PHYSICAL REVIEW LETTERS 1992; 68:3845-3848. [PMID: 10045819 DOI: 10.1103/physrevlett.68.3845] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lam WP, Ng K. Cosmological bound on Dirac neutrino mass via gamma gamma --> pi 0--> nu nu -bar. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1991; 44:3345-3347. [PMID: 10013792 DOI: 10.1103/physrevd.44.3345] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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