Data di Pubblicazione:
2012
Citazione:
Evidence for an Excess of (B)over-bar -> D-(*()) tau(-)(nu)over-bar(tau) Decays / Lees, J.p., Poireau, V., Tisserand, V., Tico, J.g., Grauges, E., Palano, A., Eigen, G., Stugu, B., Brown, D.n., Kerth, L.t., Kolomensky, Y.g., Lynch, G., Koch, H., Schroeder, T., Asgeirsson, D.j., Hearty, C., Mattison, T.s., Mckenna, J.a., So, R.y., Khan, A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 109:10(2012), pp. 072012-072020. [10.1103/PhysRevLett.109.101802]
Abstract:
Based on the full BABAR data sample, we report improved measurements of the ratios R(D-(*())) = B((B) over bar -> D-(*()) tau(-)(nu) over bar (tau))/B((B) over bar -> D-(*()) l(l)(-)(nu) over bar (l), where l is either e or mu. These ratios are sensitive to new physics contributions in the form of a charged Higgs boson. We measure R(D) = 0.440 +/- 0.058 +/- 0.042 and R(D*) = 0.332 +/- 0.024 +/- 0.018, which exceed the standard model expectations by 2.0 sigma and 2.7 sigma, respectively. Taken together, our results disagree with these expectations at the 3.4 sigma level. This excess cannot be explained by a charged Higgs boson in the type II two-Higgs-doublet model.
Tipologia CRIS:
1.1 Articolo in rivista
Elenco autori:
Lees, Jp; Poireau, V; Tisserand, V; Tico, Jg; Grauges, E; Palano, A; Eigen, G; Stugu, B; Brown, Dn; Kerth, Lt; Kolomensky, Yg; Lynch, G; Koch, H; Schroeder, T; Asgeirsson, Dj; Hearty, C; Mattison, Ts; Mckenna, Ja; So, Ry; Khan, A; Blinov, Ve; Buzykaev, Ar; Druzhinin, Vp; Golubev, Vb; Kravchenko, Ea; Onuchin, Ap; Serednyakov, Si; Skovpen, Yi; Solodov, Ep; Todyshev, Ky; Yushkov, An; Bondioli, M; Kirkby, D; Lankford, Aj; Mandelkern, M; Atmacan, H; Gary, Jw; Liu, F; Long, O; Vitug, Gm; Campagnari, C; Hong, Tm; Kovalskyi, D; Richman, Jd; West, Ca; Eisner, Am; Kroseberg, J; Lockman, Ws; Martinez, Aj; Schumm, Ba; Seiden, A; Chao, Ds; Cheng, Ch; Echenard, B; Flood, Kt; Hitlin, Dg; Ongmongkolkul, P; Porter, Fc; Rakitin, Ay; Andreassen, R; Huard, Z; Meadows, Bt; Sokoloff, Md; Sun, L; Bloom, Pc; Ford, Wt; Gaz, A; Nauenberg, U; Smith, Jg; Wagner, Sr; Ayad, R; Toki, Wh; Spaan, B; Schubert, Kr; Schwierz, R; Bernard, D; Verderi, M; Clark, Pj; Playfer, S; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Fioravanti, E; Garzia, I; Luppi, E; Munerato, M; Piemontese, L; Santoro, V; Baldini Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Patteri, P; Peruzzi, Im; Piccolo, M; Rama, M; Zallo, A; Contri, R; Guido, E; Lo Vetere, M; Monge, Mr; Passaggio, S; Patrignani, C; Robutti, E; Bhuyan, B; Prasad, V; Lee, Cl; Morii, M; Edwards, Aj; Adametz, A; Uwer, U; Lacker, Hm; Lueck, T; Dauncey, Pd; Mallik, U; Chen, C; Cochran, J; Meyer, Wt; Prell, S; Rubin, Ae; Gritsan, Av; Guo, Zj; Arnaud, N; Davier, M; Derkach, D; Grosdidier, G; Le Diberder, F; Lutz, Am; Malaescu, B; Roudeau, P; Schune, Mh; Stocchi, A; Wormser, G; Lange, Dj; Wright, Dm; Chavez, Ca; Coleman, Jp; Fry, Jr; Gabathuler, E; Hutchcroft, De; Payne, Dj; Touramanis, C; Bevan, Aj; Di Lodovico, F; Sacco, R; Sigamani, M; Cowan, G; Brown, Dn; Davis, Cl; Denig, Ag; Fritsch, M; Gradl, W; Griessinger, K; Hafner, A; Prencipe, E; Barlow, Rj; Jackson, G; Lafferty, Gd; Behn, E; Cenci, R; Hamilton, B; Jawahery, A; Roberts, Da; Dallapiccola, C; Cowan, R; Dujmic, D; Sciolla, G; Cheaib, R; Lindemann, D; Patel, Pm; Robertson, Sh; Biassoni, P; Neri, N; Palombo, F; Stracka, S; Cremaldi, L; Godang, R; Kroeger, R; Sonnek, P; Summers, Dj; Nguyen, X; Simard, M; Taras, P; De Nardo, G; Monorchio, D; Onorato, G; Sciacca, C; Martinelli, M; Raven, G; Jessop, Cp; Losecco, Jm; Wang, Wf; Honscheid, K; Kass, R; Brau, J; Frey, R; Sinev, Nb; Strom, D; Torrence, E; Feltresi, E; Gagliardi, N; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simi, G; Simonetto, F; Stroili, R; Akar, S; Ben Haim, E; Bomben, M; Bonneaud, Gr; Briand, H; Calderini, G; Chauveau, J; Hamon, O; Leruste, P; Marchiori, G; Ocariz, J; Sitt, S; Biasini, M; Manoni, E; Pacetti, S; Rossi, A; Angelini, C; Batignani, G; Bettarini, S; Carpinelli, Massimo; Casarosa, G; Cervelli, A; Forti, F; Giorgi, Ma; Lusiani, A; Oberhof, B; Paoloni, E; Perez, A; Rizzo, G; Walsh, Jj; Pegna, Dl; Olsen, J; Smith, Ajs; Telnov, Av; Anulli, F; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Gioi, Ll; Mazzoni, Ma; Piredda, G; Bunger, C; Grunberg, O; Hartmann, T; Leddig, T; Schroder, H; Voss, C; Waldi, R; Adye, T; Olaiya, Eo; Wilson, Ff; Emery, S; de Monchenault, Gh; Vasseur, G; Yeche, C; Aston, D; Bard, Dj; Bartoldus, R; Benitez, Jf; Cartaro, C; Convery, Mr; Dorfan, J; Dubois Felsmann, Gp; Dunwoodie, W; Ebert, M; Field, Rc; Sevilla, Mf; Fulsom, Bg; Gabareen, Am; Graham, Mt; Grenier, P; Hast, C; Innes, Wr; Kelsey, Mh; Kim, P; Kocian, Ml; Leith, Dwgs; Lewis, P; Lindquist, B; Luitz, S; Luth, V; Lynch, Hl; Macfarlane, Db; Muller, Dr; Neal, H; Nelson, S; Perl, M; Pulliam, T; Ratcliff, Bn; Roodman, A; Salnikov, Aa; Schindler, Rh; Snyder, A; Su, D; Sullivan, Mk; Va'Vra, J; Wagner, Ap; Wisniewski, Wj; Wittgen, M; Wright, Dh; Wulsin, Hw; Young, Cc; Ziegler, V; Park, W; Purohit, Mv; White, Rm; Wilson, Jr; Randle Conde, A; Sekula, Sj; Bellis, M; Burchat, Pr; Miyashita, Ts; Puccio, Emt; Alam, Ms; Ernst, Ja; Gorodeisky, R; Guttman, N; Peimer, Dr; Soffer, A; Lund, P; Spanier, Sm; Ritchie, Jl; Ru
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