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
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
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.
Citazione
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]
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