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Search for lepton flavor violation in the decay tau+/- --> mu+ gamma.
- Author(s): Aubert, B;
- Barate, R;
- Boutigny, D;
- Couderc, F;
- Karyotakis, Y;
- Lees, JP;
- Poireau, V;
- Tisserand, V;
- Zghiche, A;
- Grauges-Pous, E;
- Palano, A;
- Pompili, A;
- Chen, JC;
- Qi, ND;
- Rong, G;
- Wang, P;
- Zhu, YS;
- Eigen, G;
- Ofte, I;
- Stugu, B;
- Abrams, GS;
- Borgland, AW;
- Breon, AB;
- Brown, DN;
- Button-Shafer, J;
- Cahn, RN;
- Charles, E;
- Day, CT;
- Gill, MS;
- Gritsan, AV;
- Groysman, Y;
- Jacobsen, RG;
- Kadel, RW;
- Kadyk, J;
- Kerth, LT;
- Kolomensky, Yu G;
- Kukartsev, G;
- Lynch, G;
- Mir, LM;
- Oddone, PJ;
- Orimoto, TJ;
- Pripstein, M;
- Roe, NA;
- Ronan, MT;
- Wenzel, WA;
- Barrett, M;
- Ford, KE;
- Harrison, TJ;
- Hart, AJ;
- Hawkes, CM;
- Morgan, SE;
- Watson, AT;
- Fritsch, M;
- Goetzen, K;
- Held, T;
- Koch, H;
- Lewandowski, B;
- Pelizaeus, M;
- Peters, K;
- Schroeder, T;
- Steinke, M;
- Boyd, JT;
- Burke, JP;
- Chevalier, N;
- Cottingham, WN;
- Kelly, MP;
- Latham, TE;
- Wilson, FF;
- Cuhadar-Donszelmann, T;
- Hearty, C;
- Knecht, NS;
- Mattison, TS;
- McKenna, JA;
- Thiessen, D;
- Khan, A;
- Kyberd, P;
- Teodorescu, L;
- Blinov, AE;
- Blinov, VE;
- Druzhinin, VP;
- Golubev, VB;
- Ivanchenko, VN;
- Kravchenko, EA;
- Onuchin, AP;
- Serednyakov, SI;
- Skovpen, Yu I;
- Solodov, EP;
- Yushkov, AN;
- Best, D;
- Bruinsma, M;
- Chao, M;
- Eschrich, I;
- Kirkby, D;
- Lankford, AJ;
- Mandelkern, M;
- Mommsen, RK;
- Roethel, W;
- Stoker, DP;
- Buchanan, C;
- Hartfiel, BL;
- Weinstein, AJR;
- Foulkes, SD;
- Gary, JW;
- Long, O;
- Shen, BC;
- Wang, K;
- Del Re, D;
- Hadavand, HK;
- Hill, EJ;
- MacFarlane, DB;
- Paar, HP;
- Rahatlou, Sh;
- Sharma, V;
- Berryhill, JW;
- Campagnari, C;
- Cunha, A;
- Dahmes, B;
- Hong, TM;
- Lu, A;
- Mazur, MA;
- Richman, JD;
- Verkerke, W;
- Beck, TW;
- Eisner, AM;
- Flacco, CJ;
- Heusch, CA;
- Kroseberg, J;
- Lockman, WS;
- Nesom, G;
- Schalk, T;
- Schumm, BA;
- Seiden, A;
- Spradlin, P;
- Williams, DC;
- Wilson, MG;
- Albert, J;
- Chen, E;
- Dubois-Felsmann, GP;
- Dvoretskii, A;
- Hitlin, DG;
- Narsky, I;
- Piatenko, T;
- Porter, FC;
- Ryd, A;
- Samuel, A;
- Yang, S;
- Jayatilleke, S;
- Mancinelli, G;
- Meadows, BT;
- Sokoloff, MD;
- Blanc, F;
- Bloom, P;
- Chen, S;
- Ford, WT;
- Nauenberg, U;
- Olivas, A;
- Rankin, P;
- Ruddick, WO;
- Smith, JG;
- Ulmer, KA;
- Zhang, J;
- Zhang, L;
- Chen, A;
- Eckhart, EA;
- Harton, JL;
- Soffer, A;
- Toki, WH;
- Wilson, RJ;
- Zeng, Q;
- Spaan, B;
- Altenburg, D;
- Brandt, T;
- Brose, J;
- Dickopp, M;
- Feltresi, E;
- Hauke, A;
- Lacker, HM;
- Maly, E;
- Nogowski, R;
- Otto, S;
- Petzold, A;
- Schott, G;
- Schubert, J;
- Schubert, KR;
- Schwierz, R;
- Sundermann, JE;
- Bernard, D;
- Bonneaud, GR;
- Grenier, P;
- Schrenk, S;
- Thiebaux, Ch;
- Vasileiadis, G;
- Verderi, M;
- Bard, DJ;
- Clark, PJ;
- Muheim, F;
- Playfer, S;
- Xie, Y;
- Andreotti, M;
- Azzolini, V;
- Bettoni, D;
- Bozzi, C;
- Calabrese, R;
- Cibinetto, G;
- Luppi, E;
- Negrini, M;
- Piemontese, L;
- Sarti, A;
- Anulli, F;
- Baldini-Ferroli, R;
- Calcaterra, A;
- de Sangro, R;
- Finocchiaro, G;
- Patteri, P;
- Peruzzi, IM;
- Piccolo, M;
- Zallo, A;
- Buzzo, A;
- Capra, R;
- Contri, R;
- Crosetti, G;
- Lo Vetere, M;
- Macri, M;
- Monge, MR;
- Passaggio, S;
- Patrignani, C;
- Robutti, E;
- Santroni, A;
- Tosi, S;
- Bailey, S;
- Brandenburg, G;
- Chaisanguanthum, KS;
- Morii, M;
- Won, E;
- Dubitzky, RS;
- Langenegger, U;
- Marks, J;
- Uwer, U;
- Bhimji, W;
- Bowerman, DA;
- Dauncey, PD;
- Egede, U;
- Gaillard, JR;
- Morton, GW;
- Nash, JA;
- Nikolich, MB;
- Taylor, GP;
- Charles, MJ;
- Grenier, GJ;
- Mallik, U;
- Mohapatra, AK;
- Cochran, J;
- Crawley, HB;
- Lamsa, J;
- Meyer, WT;
- Prell, S;
- Rosenberg, EI;
- Rubin, AE;
- Yi, J;
- Arnaud, N;
- Davier, M;
- Giroux, X;
- Grosdidier, G;
- Höcker, A;
- Le Diberder, F;
- Lepeltier, V;
- Lutz, AM;
- Petersen, TC;
- Pierini, M;
- Plaszczynski, S;
- Schune, MH;
- Wormser, G;
- Cheng, CH;
- Lange, DJ;
- Simani, MC;
- Wright, DM;
- Bevan, AJ;
- Chavez, CA;
- Coleman, JP;
- Forster, IJ;
- Fry, JR;
- Gabathuler, E;
- Gamet, R;
- Hutchcroft, DE;
- Parry, RJ;
- Payne, DJ;
- Touramanis, C;
- Cormack, CM;
- Di Lodovico, F;
- Brown, CL;
- Cowan, G;
- Flack, RL;
- Flaecher, HU;
- Green, MG;
- Jackson, PS;
- McMahon, TR;
- Ricciardi, S;
- Salvatore, F;
- Winter, MA;
- Brown, D;
- Davis, CL;
- Allison, J;
- Barlow, NR;
- Barlow, RJ;
- Hodgkinson, MC;
- Lafferty, GD;
- Naisbit, MT;
- Williams, JC;
- Chen, C;
- Farbin, A;
- Hulsbergen, WD;
- Jawahery, A;
- Kovalskyi, D;
- Lae, CK;
- Lillard, V;
- Roberts, DA;
- Blaylock, G;
- Dallapiccola, C;
- Hertzbach, SS;
- Kofler, R;
- Koptchev, VB;
- Moore, TB;
- Saremi, S;
- Staengle, H;
- Willocq, S;
- Cowan, R;
- Koeneke, K;
- Sciolla, G;
- Sekula, SJ;
- Taylor, F;
- Yamamoto, RK;
- Patel, PM;
- Robertson, SH;
- Lazzaro, A;
- Lombardo, V;
- Palombo, F;
- Bauer, JM;
- Cremaldi, L;
- Eschenburg, V;
- Godang, R;
- Kroeger, R;
- Reidy, J;
- Sanders, DA;
- Summers, DJ;
- Zhao, HW;
- Brunet, S;
- Côté, D;
- Taras, P;
- Nicholson, H;
- Cavallo, N;
- Fabozzi, F;
- Gatto, C;
- Lista, L;
- Monorchio, D;
- Paolucci, P;
- Piccolo, D;
- Sciacca, C;
- Baak, M;
- Bulten, H;
- Raven, G;
- Snoek, HL;
- Wilden, L;
- Jessop, CP;
- LoSecco, JM;
- Allmendinger, T;
- Benelli, G;
- Gan, KK;
- Honscheid, K;
- Hufnagel, D;
- Kagan, H;
- Kass, R;
- Pulliam, T;
- Rahimi, AM;
- Ter-Antonyan, R;
- Wong, QK;
- Brau, J;
- Frey, R;
- Igonkina, O;
- Lu, M;
- Potter, CT;
- Sinev, NB;
- Strom, D;
- Torrence, E;
- Colecchia, F;
- Dorigo, A;
- Galeazzi, F;
- Margoni, M;
- Morandin, M;
- Posocco, M;
- Rotondo, M;
- Simonetto, F;
- Stroili, R;
- Voci, C;
- Benayoun, M;
- Briand, H;
- Chauveau, J;
- David, P;
- Del Buono, L;
- de la Vaissière, Ch;
- Hamon, O;
- John, MJJ;
- Leruste, Ph;
- Malclès, J;
- Ocariz, J;
- Roos, L;
- Therin, G;
- Behera, PK;
- Gladney, L;
- Guo, QH;
- Panetta, J;
- Biasini, M;
- Covarelli, R;
- Pioppi, M;
- Angelini, C;
- Batignani, G;
- Bettarini, S;
- Bondioli, M;
- Bucci, F;
- Calderini, G;
- Carpinelli, M;
- Forti, F;
- Giorgi, MA;
- Lusiani, A;
- Marchiori, G;
- Morganti, M;
- Neri, N;
- Paoloni, E;
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- Simi, G;
- Walsh, J;
- Haire, M;
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- Danielson, N;
- Elmer, P;
- Lau, YP;
- Lu, C;
- Miftakov, V;
- Olsen, J;
- Smith, AJS;
- Telnov, AV;
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- Cavoto, G;
- D'Orazio, A;
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- Ferroni, F;
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- Li Gioi, L;
- Mazzoni, MA;
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- Polci, F;
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- Gopal, GP;
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- de Monchenault, G Hamel;
- Kozanecki, W;
- Legendre, M;
- London, GW;
- Mayer, B;
- Vasseur, G;
- Yèche, Ch;
- Zito, M;
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- Weidemann, AW;
- Wilson, JR;
- Yumiceva, FX;
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- Innes, WR;
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- Kocian, ML;
- Leith, DWGS;
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- Luitz, S;
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- Strube, J;
- Su, D;
- Sullivan, MK;
- Va'vra, J;
- Wagner, SR;
- Weaver, M;
- Wisniewski, WJ;
- Wittgen, M;
- Wright, DH;
- Yarritu, AK;
- Young, CC;
- Burchat, PR;
- Edwards, AJ;
- Majewski, SA;
- Petersen, BA;
- Roat, C;
- Ahmed, M;
- Ahmed, S;
- Alam, MS;
- Ernst, JA;
- Saeed, MA;
- Saleem, M;
- Wappler, FR;
- Bugg, W;
- Krishnamurthy, M;
- Spanier, SM;
- Eckmann, R;
- Kim, H;
- Ritchie, JL;
- Satpathy, A;
- Schwitters, RF;
- Izen, JM;
- Kitayama, I;
- Lou, XC;
- Ye, S;
- Bianchi, F;
- Bona, M;
- Gallo, F;
- Gamba, D;
- Bosisio, L;
- Cartaro, C;
- Cossutti, F;
- Della Ricca, G;
- Dittongo, S;
- Grancagnolo, S;
- Lanceri, L;
- Poropat, P;
- Vitale, L;
- Vuagnin, G;
- Martinez-Vidal, F;
- Panvini, RS;
- Banerjee, Sw;
- Bhuyan, B;
- Brown, CM;
- Fortin, D;
- Hamano, K;
- Jackson, PD;
- Kowalewski, R;
- Roney, JM;
- Sobie, RJ;
- Yun, Z;
- Back, JJ;
- Harrison, PF;
- Mohanty, GB;
- Band, HR;
- Chen, X;
- Cheng, B;
- Dasu, S;
- Datta, M;
- Eichenbaum, AM;
- Flood, KT;
- Graham, M;
- Hollar, JJ;
- Johnson, JR;
- Kutter, PE;
- Li, H;
- Liu, R;
- Mihalyi, A;
- Pan, Y;
- Prepost, R;
- Tan, P;
- von Wimmersperg-Toeller, JH;
- Wu, J;
- Wu, SL;
- Yu, Z;
- Greene, MG;
- Neal, H;
- BABAR Collaboration
- et al.
Abstract
A search for the nonconservation of lepton flavor number in the decay tau(+/-) --> mu(+/-) has been performed using 2.07 x 10(8) e(+ )e(-) tau(+) tau(-) events produced at a center-of-mass energy near 10.58 GeV with the BABAR detector at the PEP-II storage ring. We find no evidence for a signal and set an upper limit on the branching ratio of Beta(tau(+/-) --> mu(+/-) gamma) < 6.8 x 10(-8) at 90% confidence level.
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