Study of tau decays involving kaons, spectral functions and determination of the strange quark mass
| Title: | Study of tau decays involving kaons, spectral functions and determination of the strange quark mass |
|---|---|
| Authors: | Barate R; Decamp D; Ghez P; Goy C; Lees JP; Merle E; Minard MN; Pietrzyk B; Alemany R; Casado MP; Chmeissani M; Crespo JM; Fernandez E; Fernandez Bosman H; Garrido L; Grauges E; Juste A; Martinez M; Merino G; Miquel R; Mir L; Pacheco A; Park IC; Riu I; Colaleo A; Creanza D; de Palma M; Gelao G; 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; Becker U; Boix G; Cattaneo M; Ciulli V; Dissertori G; Drevermann H; Forty RW; Frank M; Halley AW; Hansen JB; Harvey J; Janot P; Jost B; Lehraus I; Leroy O; Mato P; Minten A; Moutoussi A; Ranjard F; ROLANDI, LUIGI; Rousseau D; Schlatter D; Schmitt M; Schneider O; Tejessy W; Teubert F; Tomalin IR; Tournefier E; Wright AE; Ajaltouni Z; Badaud F; Chazelle G; Deschamps O; Falvard A; Ferdi C; 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; Rensch B; Waananen A; Daskalakis G; Kyriakis A; Markou C; Simopoulou E; Siotis I; Vayaki A; Blondel A; Bonneaud G; Brient JC; Rouge A; Rumpf M; Swynghedauw M; Verderi M; Videau H; Focardi E; Parrini G; Zachariadou K; Cavanaugh R; Corden M; Georgiopoulos C; Antonelli A; Bencivenni G; Bologna G; Bossi F; Campana P; Capon G; Cerutti F; Chiarella V; Laurelli P; Mannocchi G; Murtas F; Murtas GP; Passalacqua L; Pepe Altarelli M; Curtis L; Lynch JG; Negus P; O'Shea V; Raine C; Teixeira Dias P; Thompson AS; Buchmuller O; 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; Goodsir S; Martin EB; Marinelli N; Sedgbeer JK; Spagnolo P; Thomson E; Williams MD; Ghete VM; Girtler P; Kneringer E; Kuhn D; Rudolph G; Betteridge AP; Bowdery CK; Buck PG; Colrain P; Crawford G; Finch AJ; Foster F; Hughes G; Jones RWL; Robertson NA; Williams MI; Giehl I; Hoffmann C; Jakobs K; Kleinknecht K; Quast G; Renk B; Rohne E; Sander HG; van Gemmeren P; Wachsmuth H; Zeitnitz C; Aubert JJ; Benchouk C; Bonissent A; Carr J; Coyle P; Etienne F; Motsch F; Payre P; Talby M; Thulasidas M; Aleppo M; Antonelli M; Ragusa F; Berlich R; Buscher V; Dietl H; Ganis G; Huttmann K; Lutjens G; Mannert C; Manner W; Moser HG; Schael S; Settles R; Seywerd H; Stenzel H; Wiedenmann W; Wolf G; Azzurri P; Boucrot J; Callot O; Chen S; Cordier A; Davier M; Duflot L; Grivaz JF; Heusse P; Hocker A; Jacholkowska A; Kim DW; Le Diberder F; Lefrancois J; Lutz AM; Schune MH; Veillet JJ; Videau I; Zerwas D; Bagliesi G; Bettarini S; Boccali T; Bozzi C; Calderini G; Dell'Orso R; Ferrante I; Foa L; Giassi A; Gregorio A; LIGABUE, FRANCO; LUSIANI, Alberto; Marrocchesi PS; Messineo A; Palla F; Rizzo G; Sanguinetti G; Sciaba A; Sguazzoni G; Tenchini R; Vannini C; Venturi A; Verdini PG; Blair GA; Cowan G; Green MG; Medcalf T; Strong JA; von Wimmersperg Toeller JH; Botterill DR; Clifft RW; Edgecock TR; Norton PR; Thompson JC; 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; Kelly MS; Lehto M; Thompson LF; Affholderbach K; Bohrer A; Brandt S; Grupen C; Prange G; Giannini G; Gobbo B; Rothberg J; Wasserbaech S; Armstrong SR; Charles E; Elmer P; Ferguson DPS; Gao Y; Gonzalez S; Greening TC; Hayes OJ; Hu H; Jin S; McNamara PA; Nachtman JM; Nielsen J; Orejudos W; Pan YB; Saadi Y; Scott IJ; Walsh J; Wu SL; Wu X; Zobernig G. |
| Contributors: | Barate, R; Decamp, D; Ghez, P; Goy, C; Lees, Jp; Merle, E; Minard, Mn; Pietrzyk, B; Alemany, R; Casado, Mp; Chmeissani, M; Crespo, Jm; Fernandez, E; Fernandez Bosman, H; Garrido, L; Grauges, E; Juste, A; Martinez, M; Merino, G; Miquel, R; Mir, L; Pacheco, A; Park, Ic; Riu, I; Colaleo, A; Creanza, D; De Palma, M; Gelao, G; 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; Becker, U; Boix, G; Cattaneo, M; Ciulli, V; Dissertori, G; Drevermann, H; Forty, Rw; Frank, M; Halley, Aw; Hansen, Jb; Harvey, J; Janot, P; Jost, B; Lehraus, I; Leroy, O; Mato, P; Minten, A; Moutoussi, A; Ranjard, F; Rolandi, Luigi; Rousseau, D; Schlatter, D; Schmitt, M; Schneider, O; Tejessy, W; Teubert, F; Tomalin, Ir; Tournefier, E; Wright, Ae; Ajaltouni, Z; Badaud, F; Chazelle, G; Deschamps, O; Falvard, A; Ferdi, C; 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, B |
| Publication Year: | 1999 |
| Collection: | Scuola Normale Superiore: CINECA IRIS |
| Description: | All ALEPH measurements of branching ratios of tau decays involving kaons are summarized including a combination of results obtained with K(s)(0) and K(L)(0) detection. The decay dynamics are stud led, leading to the determination of contributions from vector K*(892) and K*(1410), and axial-vector K(1)(1270) and K(1)(1400) resonances. Agreement with isospin symmetry is observed among the different final states. Under the hypothesis of the conserved vector current! the spectral function for the mode is compared with the corresponding cross section for low energy e(+)e(-) annihilation, yielding an axial-vector fraction of (94(-8)(+6))% for this mode. The branching ratio for tau decay into all strange final states is determined to be B(tau(-) --> X(-) (S = -1)nu(tau)) = (28.7 +/- 1.2) x 10(-3). The measured mass spectra of the strange tau decay modes are exploited to derive the S = -1 spectral function. A combination of strange and nonstrange spectral functions is used to determine the strange: quark mass and nonperturbative contributions to the strange hadronic width. A method is developed to avoid the bad convergence of the spin zero hadronic component, with the result m(s)(M(tau)(2)) = (176(-57)(+46)) MeV/c(2). The evolution down to 1 GeV gives m(s)(1 GeV(2)) = (234(-76)(+61)) MeV/c(2). |
| Document Type: | article in journal/newspaper |
| Language: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000084716200003; volume:11; issue:4; firstpage:599; lastpage:618; numberofpages:20; journal:THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS; https://hdl.handle.net/11384/1743 |
| DOI: | 10.1007/s100520050659 |
| Availability: | https://hdl.handle.net/11384/1743; https://doi.org/10.1007/s100520050659 |
| Rights: | info:eu-repo/semantics/openAccess ; license:Non specificata ; license uri:na |
| Accession Number: | edsbas.60D67423 |
| Database: | BASE |