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.

Evidence for an Excess of (B)over-bar -> D-(*()) tau(-)(nu)over-bar(tau) Decays / 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; Ruland, Am; Schwitters, Rf; Wray, Bc; Izen, Jm; Lou, Xc; Bianchi, F; Gamba, D; Zambito, S; Lanceri, L; Vitale, L; Martinez Vidal, F; Oyanguren, A; Ahmed, H; Albert, J; Banerjee, S; Bernlochner, Fu; Choi, Hhf; King, Gj; Kowalewski, R; Lewczuk, Mj; Nugent, Im; Roney, Jm; Sobie, Rj; Tasneem, N; Gershon, Tj; Harrison, Pf; Latham, Te; Band, Hr; Dasu, S; Pan, Y; Prepost, R; Wu, Sl. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 109:10(2012), pp. 072012-072020. [10.1103/PhysRevLett.109.101802]

Evidence for an Excess of (B)over-bar -> D-(*()) tau(-)(nu)over-bar(tau) Decays

CARPINELLI, Massimo;
2012-01-01

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.
2012
Evidence for an Excess of (B)over-bar -> D-(*()) tau(-)(nu)over-bar(tau) Decays / 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; Ruland, Am; Schwitters, Rf; Wray, Bc; Izen, Jm; Lou, Xc; Bianchi, F; Gamba, D; Zambito, S; Lanceri, L; Vitale, L; Martinez Vidal, F; Oyanguren, A; Ahmed, H; Albert, J; Banerjee, S; Bernlochner, Fu; Choi, Hhf; King, Gj; Kowalewski, R; Lewczuk, Mj; Nugent, Im; Roney, Jm; Sobie, Rj; Tasneem, N; Gershon, Tj; Harrison, Pf; Latham, Te; Band, Hr; Dasu, S; Pan, Y; Prepost, R; Wu, Sl. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 109:10(2012), pp. 072012-072020. [10.1103/PhysRevLett.109.101802]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/59427
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 920
  • ???jsp.display-item.citation.isi??? 81
social impact