The inclusive production of charmed particles in Z--><b(b)over bar> decays has been measured from the yield of D-0, D+, D-s(+) and Lambda(c)(+) decays in a sample of <q(q)over bar> events with high b purity collected with the ALEPH detector from 1992 to 1995. From these measurements, adding the charmonia production rate and an estimate of the charmed strange baryon contribution, the average number of charm quarks per b decay is determined to be n(c)=1.230+/-0.036+/-0.038+/-0.053, where the uncertainties are due to statistics, systematic effects and branching ratios, respectively.
Charm counting in b decays / Buskulic, D; Debonis, I; Decamp, D; Ghez, P; Goy, C; Lees, Jp; Lucotte, A; Minard, Mn; Nief, Jy; Odier, P; Pietrzyk, B; Casado, Mp; Chmeissani, M; Crespo, Jm; Delfino, M; Efthymiopoulos, I; Fernandez, E; Fernandezbosman, M; Garrido, L; Juste, A; Martinez, M; Orteu, S; Padilla, C; Park, Ic; Pascual, A; Perlas, Ja; Riu, I; Sanchez, F; Teubert, F; Colaleo, A; Creanza, Donato Maria; Depalma, M; Gelao, G; Girone, M; Iaselli, Giuseppe; Maggi, Giorgio Pietro; Maggi, M; Marinelli, N; Nuzzo, S; Ranieri, A; Raso, G; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Tricomi, A; Zito, G; Huang, X; Lin, J; Ouyang, Q; Wang, T; Xie, Y; Xu, R; Xue, S; Zhang, J; Zhang, L; Zhao, W; Alemany, R; Bazarko, Ao; Bonvicini, G; Brightthomas, P; Cattaneo, M; Cerutti, F; Comas, P; Coyle, P; Drevermann, H; Forty, Rw; Frank, M; Hagelberg, R; Harvey, J; Janot, P; Jost, B; Kneringer, E; Knobloch, J; Lehraus, I; Lutters, G; Martin, Eb; Mato, P; Minten, A; Miquel, R; Mir, Lm; Moneta, L; Oest, T; Pacheco, A; Pusztaszeri, Jf; Ranjard, F; Rensing, P; Rizzo, G; Rolandi, L; Schlatter, D; Schmelling, M; Schmitt, M; Schneider, O; Tejessy, W; Tomalin, Ir; Venturi, A; Wachsmuth, H; Wagner, A; Ajaltouni, Z; Barres, A; Boyer, C; Falvard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Monteil, S; Montret, Jc; Pallin, D; Perret, P; Podlyski, F; Proriol, J; Rosnet, P; Rossignol, Jm; Fearnley, T; Hansen, Jb; Hansen, Jd; Hansen, Jr; Hansen, Ph; Nilsson, Bs; Rensch, B; Waananen, A; Kyriakis, A; Markou, C; Simopoulou, E; Siotis, I; Vayaki, A; Zachariadou, K; Blondel, A; Bonneaud, G; Brient, Jc; Bourdon, P; Rouge, A; Rumpf, M; Valassi, A; Verderi, M; Videau, H; Candlin, Dj; Parsons, Mi; Focardi, E; Parrini, G; Corden, M; Georgiopoulos, C; Jaffe, De; Antonelli, A; Bencivenni, G; Bologna, G; Bossi, F; Campana, P; Capon, G; Casper, D; Chiarella, V; Felici, G; Laurelli, P; Mannocchi, G; Murtas, Gp; Passacqua, L; Pepealtarelli, M; Curtis, L; Dorris, Sj; Halley, Aw; Knowles, Ig; Lynch, Jg; Oshea, V; Raine, C; Reeves, P; Scarr, Jm; Smith, K; Teixeiradias, P; Thompson, As; Thomson, F; Thorn, S; Turnbull, Rm; Becker, U; Geweniger, C; Graefe, G; Hanke, P; Hansper, G; Hepp, V; Kluge, Ee; Putzer, A; Schmidt, M; Sommer, J; Stenzel, H; Tittel, K; Werner, S; Wunsch, M; Abbaneo, D; Beuselinck, R; Binnie, Dm; Cameron, W; Dornan, Pj; Moutoussi, A; Nash, J; Sedgbeer, Jk; Stacey, Am; Williams, Md; Dissertori, G; Girtler, P; Kuhn, D; Rudolph, G; Betteridge, Ap; Bowdery, Ck; Colrain, P; Crawford, G; Finch, Aj; Foster, F; Hughes, G; Sloan, T; Williams, Mi; Galla, A; Giehl, I; Greene, Am; Hoffmann, C; Jakobs, K; Kleinknecht, K; Quast, G; Renk, B; Rohne, E; Sander, Hg; Vangemmeren, P; Zeitnitz, C; Aubert, Jj; Bencheikh, Am; Benchouk, C; Bonissent, A; Bujosa, G; Calvet, D; Carr, J; Diaconu, C; Etienne, F; Konstantinidis, N; Payre, P; Rousseau, D; Talby, M; Sadouki, A; Thulasidas, M; Trabelsi, K; Aleppo, M; Ragusa, F; Bauer, C; Berlich, R; Blum, W; Buscher, V; Dietl, H; Dydak, F; Ganis, G; Gotzhein, C; Kroha, H; Lutjens, G; Lutz, G; Manner, W; Moser, Hg; Richter, R; Rosadoschlosser, A; Schael, S; Settles, R; Seywerd, H; Stdenis, R; Stenzel, H; Wiedenmann, W; Wolf, G; Boucrot, J; Callot, O; Choi, Y; Cordier, A; Davier, M; Duflot, L; Grivaz, Jf; Heusse, P; Hocker, A; Jacholkowska, A; Jacquet, M; Kim, Dw; Lediberder, F; Lefrancois, J; Lutz, Am; Nikolic, I; Park, Hj; Schune, Mh; Simion, S; Veillet, Jj; Videau, I; Zerwas, D; Azzurri, P; Bagliesi, G; Batignani, G; Bettarini, S; Bozzi, C; Calderini, G; Carpinelli, M; Ciocci, Ma; Ciulli, V; Dellorso, R; Fantechi, R; Ferrante, I; Foa, L; Forti, F; Giassi, A; Giorgi, Ma; Gregorio, A; Ligabue, F; Lusiani, A; Marrocchesi, Ps; Messineo, A; Palla, F; Sanguinetti, G; Sciaba, A; Spagnolo, P; Steinberger, J; Tenchini, R; Tonelli, G; Vannini, C; Verdini, Pg; Blair, Ga; Bryant, Lm; Chambers, Jt; Gao, Y; Green, Mg; Medcalf, T; Perrodo, P; Strong, Ja; Vonwimmerspergtoeller, Jh; Botterill, Dr; Clifft, Rw; Edgecock, Tr; Haywood, S; Maley, P; Norton, Pr; Thompson, Jc; Wright, Ae; Blochdevaux, B; Colas, P; Emery, S; Kozanecki, W; Lancon, E; Lemaire, Mc; Locci, E; Perez, P; Rander, J; Renardy, Jf; Roussarie, A; Schuller, Jp; Schwindling, J; Trabelsi, A; Vallage, B; Black, Sn; Dann, Jh; Johnson, Rp; Kim, Hy; Litke, Am; Mcneil, Ma; Taylor, G; Booth, Cn; Boswell, R; Brew, Caj; Cartwright, S; Combley, F; Koksal, A; Letho, M; Newton, Wm; Reeve, J; Thompson, Lf; Bohrer, A; Brandt, S; Cowan, G; Grupen, C; Minguetrodriguez, J; Rivera, F; Saraiva, P; Smolik, L; Stephan, F; Appollonio, M; Bosisio, L; Dellamarina, R; Giannini, G; Gobbo, B; Musolino, G; Rothberg, J; Wasserbaech, S; Armstrong, Sr; Elmer, P; Feng, Z; Ferguson, Dps; Gao, Ys; Gonzalez, S; Grahl, J; Greening, Tc; Hayes, Oj; H, Hu; Mcnamara, Pa; Nachtman, Jm; Orejudos, W; Pan, Yb; Saadi, Y; Scott, Lj; Walsh, Am; Walsh, J; Wu, Sl; Wu, X; Yamartino, Jm; Zheng, M; Zobernig, G.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 388:3(1996), pp. 648-658. [10.1016/S0370-2693(96)01318-4]
Charm counting in b decays
Buskulic D; DeBonis I; Decamp D; Ghez P; Goy C; Lees JP; Lucotte A; Minard MN; Nief JY; Odier P; Pietrzyk B; Casado MP; Chmeissani M; Crespo JM; Delfino M; Efthymiopoulos I; Fernandez E; FernandezBosman M; Garrido L; Juste A; Martinez M; Orteu S; Padilla C; Park IC; Pascual A; Perlas JA; Riu I; Sanchez F; Teubert F; Colaleo A; CREANZA, Donato Maria ;dePalma M; Gelao G; Girone M; IASELLI, Giuseppe ;MAGGI, Giorgio Pietro ;Maggi M; Marinelli N; Nuzzo S; Ranieri A; Raso G; Ruggieri F; Selvaggi G; Silvestris L; Tempesta P; Tricomi A; Zito G; Huang X; Lin J; Ouyang Q; Wang T; Xie Y; Xu R; Xue S; Zhang J; Zhang L; Zhao W; Alemany R; Bazarko AO; Bonvicini G; BrightThomas P; Cattaneo M; Cerutti F; Comas P; Coyle P; Drevermann H; Forty RW; Frank M; Hagelberg R; Harvey J; Janot P; Jost B; Kneringer E; Knobloch J; Lehraus I; Lutters G; Martin EB; Mato P; Minten A; Miquel R; Mir LM; Moneta L; Oest T; Pacheco A; Pusztaszeri JF; Ranjard F; Rensing P; Rizzo G; Rolandi L; Schlatter D; Schmelling M; Schmitt M; Schneider O; Tejessy W; Tomalin IR; Venturi A; Wachsmuth H; Wagner A; Ajaltouni Z; Barres A; Boyer C; Falvard A; Gay P; Guicheney C; Henrard P; Jousset J; Michel B; Monteil S; Montret JC; Pallin D; Perret P; Podlyski F; Proriol J; Rosnet P; Rossignol JM; Fearnley T; Hansen JB; Hansen JD; Hansen JR; Hansen PH; Nilsson BS; Rensch B; Waananen A; Kyriakis A; Markou C; Simopoulou E; Siotis I; Vayaki A; Zachariadou K; Blondel A; Bonneaud G; Brient JC; Bourdon P; Rouge A; Rumpf M; Valassi A; Verderi M; Videau H; Candlin DJ; Parsons MI; Focardi E; Parrini G; Corden M; Georgiopoulos C; Jaffe DE; Antonelli A; Bencivenni G; Bologna G; Bossi F; Campana P; Capon G; Casper D; Chiarella V; Felici G; Laurelli P; Mannocchi G; Murtas GP; Passacqua L; Pepealtarelli M; Curtis L; Dorris SJ; Halley AW; Knowles IG; Lynch JG; OShea V; Raine C; Reeves P; Scarr JM; Smith K; Teixeiradias P; Thompson AS; Thomson F; Thorn S; Turnbull RM; Becker U; Geweniger C; Graefe G; Hanke P; Hansper G; Hepp V; Kluge EE; Putzer A; Schmidt M; Sommer J; Stenzel H; Tittel K; Werner S; Wunsch M; Abbaneo D; Beuselinck R; Binnie DM; Cameron W; Dornan PJ; Moutoussi A; Nash J; Sedgbeer JK; Stacey AM; Williams MD; Dissertori G; Girtler P; Kuhn D; Rudolph G; Betteridge AP; Bowdery CK; Colrain P; Crawford G; Finch AJ; Foster F; Hughes G; Sloan T; Williams MI; Galla A; Giehl I; Greene AM; Hoffmann C; Jakobs K; Kleinknecht K; Quast G; Renk B; Rohne E; Sander HG; vanGemmeren P; Zeitnitz C; Aubert JJ; Bencheikh AM; Benchouk C; Bonissent A; Bujosa G; Calvet D; Carr J; Diaconu C; Etienne F; Konstantinidis N; Payre P; Rousseau D; Talby M; Sadouki A; Thulasidas M; Trabelsi K; Aleppo M; Ragusa F; Bauer C; Berlich R; Blum W; Buscher V; Dietl H; Dydak F; Ganis G; Gotzhein C; Kroha H; Lutjens G; Lutz G; Manner W; Moser HG; Richter R; RosadoSchlosser A; Schael S; Settles R; Seywerd H; StDenis R; Stenzel H; Wiedenmann W; Wolf G; Boucrot J; Callot O; Choi Y; Cordier A; Davier M; Duflot L; Grivaz JF; Heusse P; Hocker A; Jacholkowska A; Jacquet M; Kim DW; LeDiberder F; Lefrancois J; Lutz AM; Nikolic I; Park HJ; Schune MH; Simion S; Veillet JJ; Videau I; Zerwas D; Azzurri P; Bagliesi G; Batignani G; Bettarini S; Bozzi C; Calderini G; Carpinelli M; Ciocci MA; Ciulli V; DellOrso R; Fantechi R; Ferrante I; Foa L; Forti F; Giassi A; Giorgi MA; Gregorio A; Ligabue F; Lusiani A; Marrocchesi PS; Messineo A; Palla F; Sanguinetti G; Sciaba A; Spagnolo P; Steinberger J; Tenchini R; Tonelli G; Vannini C; Verdini PG; Blair GA; Bryant LM; Chambers JT; Gao Y; Green MG; Medcalf T; Perrodo P; Strong JA; vonWimmerspergToeller JH; Botterill DR; Clifft RW; Edgecock TR; Haywood S; Maley P; Norton PR; Thompson JC; Wright AE; BlochDevaux B; Colas P; Emery S; Kozanecki W; Lancon E; Lemaire MC; Locci E; Perez P; Rander J; Renardy JF; Roussarie A; Schuller JP; Schwindling J; Trabelsi A; Vallage B; Black SN; Dann JH; Johnson RP; Kim HY; Litke AM; McNeil MA; Taylor G; Booth CN; Boswell R; Brew CAJ; Cartwright S; Combley F; Koksal A; Letho M; Newton WM; Reeve J; Thompson LF; Bohrer A; Brandt S; Cowan G; Grupen C; MinguetRodriguez J; Rivera F; Saraiva P; Smolik L; Stephan F; Appollonio M; Bosisio L; DellaMarina R; Giannini G; Gobbo B; Musolino G; Rothberg J; Wasserbaech S; Armstrong SR; Elmer P; Feng Z; Ferguson DPS; Gao YS; Gonzalez S; Grahl J; Greening TC; Hayes OJ; Hu H; McNamara PA; Nachtman JM; Orejudos W; Pan YB; Saadi Y; Scott LJ; Walsh AM; Walsh J; Wu SL; Wu X; Yamartino JM; Zheng M; Zobernig G.
1996-01-01
Abstract
The inclusive production of charmed particles in Z-->
decays has been measured from the yield of D-0, D+, D-s(+) and Lambda(c)(+) decays in a sample of events with high b purity collected with the ALEPH detector from 1992 to 1995. From these measurements, adding the charmonia production rate and an estimate of the charmed strange baryon contribution, the average number of charm quarks per b decay is determined to be n(c)=1.230+/-0.036+/-0.038+/-0.053, where the uncertainties are due to statistics, systematic effects and branching ratios, respectively.
Citazione
Charm counting in b decays / Buskulic, D; Debonis, I; Decamp, D; Ghez, P; Goy, C; Lees, Jp; Lucotte, A; Minard, Mn; Nief, Jy; Odier, P; Pietrzyk, B; Casado, Mp; Chmeissani, M; Crespo, Jm; Delfino, M; Efthymiopoulos, I; Fernandez, E; Fernandezbosman, M; Garrido, L; Juste, A; Martinez, M; Orteu, S; Padilla, C; Park, Ic; Pascual, A; Perlas, Ja; Riu, I; Sanchez, F; Teubert, F; Colaleo, A; Creanza, Donato Maria; Depalma, M; Gelao, G; Girone, M; Iaselli, Giuseppe; Maggi, Giorgio Pietro; Maggi, M; Marinelli, N; Nuzzo, S; Ranieri, A; Raso, G; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Tricomi, A; Zito, G; Huang, X; Lin, J; Ouyang, Q; Wang, T; Xie, Y; Xu, R; Xue, S; Zhang, J; Zhang, L; Zhao, W; Alemany, R; Bazarko, Ao; Bonvicini, G; Brightthomas, P; Cattaneo, M; Cerutti, F; Comas, P; Coyle, P; Drevermann, H; Forty, Rw; Frank, M; Hagelberg, R; Harvey, J; Janot, P; Jost, B; Kneringer, E; Knobloch, J; Lehraus, I; Lutters, G; Martin, Eb; Mato, P; Minten, A; Miquel, R; Mir, Lm; Moneta, L; Oest, T; Pacheco, A; Pusztaszeri, Jf; Ranjard, F; Rensing, P; Rizzo, G; Rolandi, L; Schlatter, D; Schmelling, M; Schmitt, M; Schneider, O; Tejessy, W; Tomalin, Ir; Venturi, A; Wachsmuth, H; Wagner, A; Ajaltouni, Z; Barres, A; Boyer, C; Falvard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Monteil, S; Montret, Jc; Pallin, D; Perret, P; Podlyski, F; Proriol, J; Rosnet, P; Rossignol, Jm; Fearnley, T; Hansen, Jb; Hansen, Jd; Hansen, Jr; Hansen, Ph; Nilsson, Bs; Rensch, B; Waananen, A; Kyriakis, A; Markou, C; Simopoulou, E; Siotis, I; Vayaki, A; Zachariadou, K; Blondel, A; Bonneaud, G; Brient, Jc; Bourdon, P; Rouge, A; Rumpf, M; Valassi, A; Verderi, M; Videau, H; Candlin, Dj; Parsons, Mi; Focardi, E; Parrini, G; Corden, M; Georgiopoulos, C; Jaffe, De; Antonelli, A; Bencivenni, G; Bologna, G; Bossi, F; Campana, P; Capon, G; Casper, D; Chiarella, V; Felici, G; Laurelli, P; Mannocchi, G; Murtas, Gp; Passacqua, L; Pepealtarelli, M; Curtis, L; Dorris, Sj; Halley, Aw; Knowles, Ig; Lynch, Jg; Oshea, V; Raine, C; Reeves, P; Scarr, Jm; Smith, K; Teixeiradias, P; Thompson, As; Thomson, F; Thorn, S; Turnbull, Rm; Becker, U; Geweniger, C; Graefe, G; Hanke, P; Hansper, G; Hepp, V; Kluge, Ee; Putzer, A; Schmidt, M; Sommer, J; Stenzel, H; Tittel, K; Werner, S; Wunsch, M; Abbaneo, D; Beuselinck, R; Binnie, Dm; Cameron, W; Dornan, Pj; Moutoussi, A; Nash, J; Sedgbeer, Jk; Stacey, Am; Williams, Md; Dissertori, G; Girtler, P; Kuhn, D; Rudolph, G; Betteridge, Ap; Bowdery, Ck; Colrain, P; Crawford, G; Finch, Aj; Foster, F; Hughes, G; Sloan, T; Williams, Mi; Galla, A; Giehl, I; Greene, Am; Hoffmann, C; Jakobs, K; Kleinknecht, K; Quast, G; Renk, B; Rohne, E; Sander, Hg; Vangemmeren, P; Zeitnitz, C; Aubert, Jj; Bencheikh, Am; Benchouk, C; Bonissent, A; Bujosa, G; Calvet, D; Carr, J; Diaconu, C; Etienne, F; Konstantinidis, N; Payre, P; Rousseau, D; Talby, M; Sadouki, A; Thulasidas, M; Trabelsi, K; Aleppo, M; Ragusa, F; Bauer, C; Berlich, R; Blum, W; Buscher, V; Dietl, H; Dydak, F; Ganis, G; Gotzhein, C; Kroha, H; Lutjens, G; Lutz, G; Manner, W; Moser, Hg; Richter, R; Rosadoschlosser, A; Schael, S; Settles, R; Seywerd, H; Stdenis, R; Stenzel, H; Wiedenmann, W; Wolf, G; Boucrot, J; Callot, O; Choi, Y; Cordier, A; Davier, M; Duflot, L; Grivaz, Jf; Heusse, P; Hocker, A; Jacholkowska, A; Jacquet, M; Kim, Dw; Lediberder, F; Lefrancois, J; Lutz, Am; Nikolic, I; Park, Hj; Schune, Mh; Simion, S; Veillet, Jj; Videau, I; Zerwas, D; Azzurri, P; Bagliesi, G; Batignani, G; Bettarini, S; Bozzi, C; Calderini, G; Carpinelli, M; Ciocci, Ma; Ciulli, V; Dellorso, R; Fantechi, R; Ferrante, I; Foa, L; Forti, F; Giassi, A; Giorgi, Ma; Gregorio, A; Ligabue, F; Lusiani, A; Marrocchesi, Ps; Messineo, A; Palla, F; Sanguinetti, G; Sciaba, A; Spagnolo, P; Steinberger, J; Tenchini, R; Tonelli, G; Vannini, C; Verdini, Pg; Blair, Ga; Bryant, Lm; Chambers, Jt; Gao, Y; Green, Mg; Medcalf, T; Perrodo, P; Strong, Ja; Vonwimmerspergtoeller, Jh; Botterill, Dr; Clifft, Rw; Edgecock, Tr; Haywood, S; Maley, P; Norton, Pr; Thompson, Jc; Wright, Ae; Blochdevaux, B; Colas, P; Emery, S; Kozanecki, W; Lancon, E; Lemaire, Mc; Locci, E; Perez, P; Rander, J; Renardy, Jf; Roussarie, A; Schuller, Jp; Schwindling, J; Trabelsi, A; Vallage, B; Black, Sn; Dann, Jh; Johnson, Rp; Kim, Hy; Litke, Am; Mcneil, Ma; Taylor, G; Booth, Cn; Boswell, R; Brew, Caj; Cartwright, S; Combley, F; Koksal, A; Letho, M; Newton, Wm; Reeve, J; Thompson, Lf; Bohrer, A; Brandt, S; Cowan, G; Grupen, C; Minguetrodriguez, J; Rivera, F; Saraiva, P; Smolik, L; Stephan, F; Appollonio, M; Bosisio, L; Dellamarina, R; Giannini, G; Gobbo, B; Musolino, G; Rothberg, J; Wasserbaech, S; Armstrong, Sr; Elmer, P; Feng, Z; Ferguson, Dps; Gao, Ys; Gonzalez, S; Grahl, J; Greening, Tc; Hayes, Oj; H, Hu; Mcnamara, Pa; Nachtman, Jm; Orejudos, W; Pan, Yb; Saadi, Y; Scott, Lj; Walsh, Am; Walsh, J; Wu, Sl; Wu, X; Yamartino, Jm; Zheng, M; Zobernig, G.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 388:3(1996), pp. 648-658. [10.1016/S0370-2693(96)01318-4]
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