A study of the decay width difference in the B-s(0)-(B)over-bar(s)(0) system using phi phi correlations

Barate, R; Decamp, D; Ghez, P; Goy, C; Lees, Jp; Merle, E; Minard, Mn; Pietrzyk, B; Alemany, R; Bravo, S; Casado, Mp; Chmeissani, M; Crespo, Jm; Fernandez, E; Fernandez-bosman, M; Garrido, L; Grauges, E; Martinez, M; Merino, G; Miquel, R; Mir, Lm; Pacheco, A; Ruiz, H; Colaleo, A; Creanza, D; Nullm, nullDe Palma; Iaselli, G; Maggi, G; Maggi, M; 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; Abbaneo, D; Boix, G; Buchmuller, O; Cattaneo, M; Cerutti, F; Dissertori, G; Drevermann, H; Forty, Rw; Frank, M; Greening, Tc; Halley, Aw; Hansen, Jb; Harvey, J; Janot, P; Jost, B; Lehraus, I; Mato, P; Minten, A; Moutoussi, A; Ranjard, F; Rolandi, L; Schlatter, D; Schmitt, M; Schneider, O; Spagnolo, P; Tejessy, W; Teubert, F; Tournefier, E; Wright, Ae; Ajaltouni, Z; Badaud, F; Chazelle, G; Deschamps, O; Favard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Monteil, S; Montret, Jc; Pallin, D; Perret, P; Podlyski, F; Hansen, Jd; Hansen, Jr; Hansen, Ph; Nilsson, Bs; Waananen, A; Daskalakis, G; Kyriakis, A; Markou, C; Simopoulou, E; Vayaki, A; Blondel, A; Bonneaud, G; Brient, Jc; Rouge, A; Rumpf, M; Swynghedauw, M; Verderi, M; Videau, H; Focardi, E; Parrini, G; Zachariadou, K; Antonelli, A; Bencivenni, G; Bologna, G; Bossi, F; Campana, P; Capon, G; Chiarella, V; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, Gp; Passalacqua, L; Pepe-altarelli, M; Lynch, Jg; Negus, P; O'Shea, V; Raine, C; Teixeira-dias, P; Thompson, As; Cavanaugh, R; Dhamotharan, S; Geweniger, C; Hanke, P; Hansper, G; Hepp, V; Kluge, Ee; Putzer, A; Sommer, J; Tittel, K; Werner, S; Wunsch, M; Beuselinck, R; Binnie, Dm; Cameron, W; Dornan, Pj; Girone, M; Marinelli, N; Sedgbeer, Jk; Thompson, Jc; Thomson, E; Ghete, Vm; Girtler, P; Kneringer, E; Kuhn, D; Rudolph, G; Bowdery, Ck; Buck, Pg; Finch, Aj; Foster, F; Hughes, G; Jones, Rwl; Robertson, Na; Giehl, I; Jakobs, K; Kleinknecht, K; Quast, G; Renk, B; Rohne, E; Sander, Hg; Wachsmuth, H; Zeitnitz, C; Bonissent, A; Carr, J; Coyle, P; Leroy, O; Payre, P; Rousseau, D; Talby, M; Aleppo, M; Antonelli, M; Ragusa, F; Dietl, H; Ganis, C; Huttmann, K; Lutjens, G; Mannert, C; Manner, W; Moser, Hg; Schael, S; Settles, R; Stenzel, H; Wiedenmann, W; Wolf, G; Azzurri, P; Boucrot, J; Callot, O; Chen, S; Cordier, A; Davier, M; Duflot, L; Grivaz, Jf; Heusse, P; Jacholkowska, A; Nullf, nullLe Diberder; Lefrancois, J; Lutz, Am; Schune, Mh; Veillet, Jj; Videau, I; Zerwas, D; Bagliesi, G; Boccali, T; Calderini, G; Ciulli, V; Foa, L; Giassi, A; Ligabue, F; Messineo, A; Palla, F; Rizzo, G; Sanguinetti, G; Sciaba, A; Sguazzoni, G; Tenchini, R; Venturi, A; Verdini, Pg; Blair, Ga; Cowan, G; Green, Mg; Medcalf, T; Strong, Ja; Clifft, Rw; Edgecock, Tr; Norton, Pr; Tomalin, Ir; Bloch-devaux, 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; Konstantinidis, N; Litke, Am; Mcneil, Ma; Taylor, G; Booth, Cn; Cartwright, S; Combley, F; Lehto, M; Thompson, Lf; Affholderbach, K; Bohrer, A; Brandt, S; Grupen, C; Misiejuk, A; Prange, G; Sieler, U; Giannini, G; Gobbo, B; Rothberg, J; Wasserbaech, S; Armstrong, Sr; Elmer, P; Ferguson, Dps; Cao, Y; Gonzalez, S; Hayes, Oj; Hu, H; Jin, S; Kile, J; Mcnamara, Pa; Nielsen, J; Orejudos, W; Pan, Yb; Saadi, Y; Scott, Ij; Walsh, J; Von Wimmersperg-toeller Jh,; Wu, Sl; Wu, X; Zobernig, G.

doi:10.1016/S0370-2693(00)00750-4

In a data sample of about four million hadronic Z decays recorded with the ALEPH detector from 1991 to 1995. the B-s(0) --> (Ds(*)+Ds()*()-) decay is observed, based on tagging the final state with two phi mesons in the same hemisphere. The D-s((*)+) D-s((*)-) final state is mostly CP even and corresponds to the short-lived B-s(0) mass eigenstate. The branching ratio of this decay is measured to be BR(B-s(0)(short) --> D-s((*)+) D-s((*)-)) = (23 +/- 10(-9)(+19))%. A measurement of the lifetime of the B-s(0)(short) gives 1.27 +/- 0.33 +/- 0.08 ps. The lifetime and branching ratio measurements provide two essentially independent methods of estimating the relative decay width difference Delta Gamma/Gamma in the B-s(0)-(B) over bar(s)(0) system, corresponding to an average value Delta Gamma/Gamma = (25+/-(21)(14))%. (C) 2000 Elsevier Science B.V. All rights reserved.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/189806

Autori interni:	MESSINEO, ALBERTO MARIA RIZZO, GIULIANA TONELLI, GUIDO EMILIO
Autori:	Barate R; Decamp D; Ghez P; Goy C; Lees JP; Merle E; Minard MN; Pietrzyk B; Alemany R; Bravo S; Casado MP; Chmeissani M; Crespo JM; Fernandez E; Fernandez-Bosman M; Garrido L; Grauges E; Martinez M; Merino G; Miquel R; Mir LM; Pacheco A; Ruiz H; Colaleo A; Creanza D; de Palma M; Iaselli G; Maggi G; Maggi M; 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; Abbaneo D; Boix G; Buchmuller O; Cattaneo M; Cerutti F; Dissertori G; Drevermann H; Forty RW; Frank M; Greening TC; Halley AW; Hansen JB; Harvey J; Janot P; Jost B; Lehraus I; Mato P; Minten A; Moutoussi A; Ranjard F; Rolandi L; Schlatter D; Schmitt M; Schneider O; Spagnolo P; Tejessy W; Teubert F; Tournefier E; Wright AE; Ajaltouni Z; Badaud F; Chazelle G; Deschamps O; Favard A; Gay P; Guicheney C; Henrard P; Jousset J; Michel B; Monteil S; Montret JC; Pallin D; Perret P; Podlyski F; Hansen JD; Hansen JR; Hansen PH; Nilsson BS; Waananen A; Daskalakis G; Kyriakis A; Markou C; Simopoulou E; Vayaki A; Blondel A; Bonneaud G; Brient JC; Rouge A; Rumpf M; Swynghedauw M; Verderi M; Videau H; Focardi E; Parrini G; Zachariadou K; Antonelli A; Bencivenni G; Bologna G; Bossi F; Campana P; Capon G; Chiarella V; Laurelli P; Mannocchi G; Murtas F; Murtas GP; Passalacqua L; Pepe-Altarelli M; Lynch JG; Negus P; O'Shea V; Raine C; Teixeira-Dias P; Thompson AS; Cavanaugh R; Dhamotharan S; Geweniger C; Hanke P; Hansper G; Hepp V; Kluge EE; Putzer A; Sommer J; Tittel K; Werner S; Wunsch M; Beuselinck R; Binnie DM; Cameron W; Dornan PJ; Girone M; Marinelli N; Sedgbeer JK; Thompson JC; Thomson E; Ghete VM; Girtler P; Kneringer E; Kuhn D; Rudolph G; Bowdery CK; Buck PG; Finch AJ; Foster F; Hughes G; Jones RWL; Robertson NA; Giehl I; Jakobs K; Kleinknecht K; Quast G; Renk B; Rohne E; Sander HG; Wachsmuth H; Zeitnitz C; Bonissent A; Carr J; Coyle P; Leroy O; Payre P; Rousseau D; Talby M; Aleppo M; Antonelli M; Ragusa F; Dietl H; Ganis C; Huttmann K; Lutjens G; Mannert C; Manner W; Moser HG; Schael S; Settles R; Stenzel H; Wiedenmann W; Wolf G; Azzurri P; Boucrot J; Callot O; Chen S; Cordier A; Davier M; Duflot L; Grivaz JF; Heusse P; Jacholkowska A; Le Diberder F; Lefrancois J; Lutz AM; Schune MH; Veillet JJ; Videau I; Zerwas D; Bagliesi G; Boccali T; Calderini G; Ciulli V; Foa L; Giassi A; Ligabue F; Messineo A; Palla F; Rizzo G; Sanguinetti G; Sciaba A; Sguazzoni G; Tenchini R; Venturi A; Verdini PG; Blair GA; Cowan G; Green MG; Medcalf T; Strong JA; Clifft RW; Edgecock TR; Norton PR; Tomalin IR; Bloch-Devaux 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; Konstantinidis N; Litke AM; McNeil MA; Taylor G; Booth CN; Cartwright S; Combley F; Lehto M; Thompson LF; Affholderbach K; Bohrer A; Brandt S; Grupen C; Misiejuk A; Prange G; Sieler U; Giannini G; Gobbo B; Rothberg J; Wasserbaech S; Armstrong SR; Elmer P; Ferguson DPS; Cao Y; Gonzalez S; Hayes OJ; Hu H; Jin S; Kile J; McNamara PA; Nielsen J; Orejudos W; Pan YB; Saadi Y; Scott IJ; Walsh J; von Wimmersperg-Toeller JH; Wu SL; Wu X; Zobernig G
Titolo:	A study of the decay width difference in the B-s(0)-(B)over-bar(s)(0) system using phi phi correlations
Anno del prodotto:	2000
Digital Object Identifier (DOI):	10.1016/S0370-2693(00)00750-4
Appare nelle tipologie:	1.1 Articolo in rivista

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