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Titolo:
Experimental evidence for a light and broad scalar resonance in D+ -> pi(-)pi(+)pi(+) decay
Autore:
Aitala, EM; Amato, S; Anjos, JC; Appel, JA; Ashery, D; Banerjee, S; Bediaga, I; Blaylock, G; Bracker, SB; Burchat, PR; Burnstein, RA; Carter, T; Carvalho, HS; Copty, NK; Cremaldi, LM; Darling, C; Denisenko, K; Devmal, S; Fernandez, A; Fox, GE; Gagnon, P; Gobel, C; Gounder, K; Halling, AM; Herrera, G; Hurvits, G; James, C; Kasper, PA; Kwan, S; Langs, DC; Leslie, J; Lundberg, B; Magnin, J; Massafferri, A; MayTal-Beck, S; Meadows, B; Neto, JRTD; Mihalcea, D; Milburn, RH; de Miranda, JM; Napier, A; Nguyen, A; dOliveira, AB; OShaughnessy, K; Peng, KC; Perera, LP; Purohit, MV; Quinn, B; Radeztsky, S; Rafatian, A; Reay, NW; Reidy, JJ; dos Reis, AC; Rubin, HA; Sanders, DA; Santha, AKS; Santoro, AFS; Schwartz, AJ; Sheaff, M; Sidwell, RA; Slaughter, AJ; Sokoloff, MD; Solano, J; Stanton, NR; Stefanski, RJ; Stenson, K; Summers, DJ; Takach, S; Thorne, K; Tripathi, AK; Watanabe, S; Weiss-Babai, R; Wiener, J; Witchey, N; Wolin, E; Yang, SM; Yi, D; Yoshida, S; Zaliznyak, R; Zhang, C;
Indirizzi:
Univ Mississippi Oxford, University, MS 38677 USA Univ Mississippi OxfordUniversity MS USA 38677 University, MS 38677 USA Univ Massachusetts, Amherst, MA 01003 USA Univ Massachusetts Amherst MA USA 01003 sachusetts, Amherst, MA 01003 USA Kansas State Univ, Manhattan, KS 66506 USA Kansas State Univ Manhattan KSUSA 66506 te Univ, Manhattan, KS 66506 USA IIT, Chicago, IL 60616 USA IIT Chicago IL USA 60616IIT, Chicago, IL 60616 USA Fermi Natl Accelerator Lab, Batavia, IL 60510 USA Fermi Natl Accelerator Lab Batavia IL USA 60510 ab, Batavia, IL 60510 USA CINVESTAV, Mexico City 14000, DF, Mexico CINVESTAV Mexico City DF Mexico 14000 STAV, Mexico City 14000, DF, Mexico Univ Cincinnati, Cincinnati, OH 45221 USA Univ Cincinnati Cincinnati OH USA 45221 cinnati, Cincinnati, OH 45221 USA Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA Univ Calif Santa Cruz Santa Cruz CA USA 95064 z, Santa Cruz, CA 95064 USA Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil Ctr Brasileiro Pesquisas Fis Rio De Janeiro Brazil o De Janeiro, Brazil Princeton Univ, Princeton, NJ 08544 USA Princeton Univ Princeton NJ USA 08544 ceton Univ, Princeton, NJ 08544 USA Univ Autonoma Puebla, Puebla 72570, Mexico Univ Autonoma Puebla Puebla Mexico 72570 ma Puebla, Puebla 72570, Mexico Univ S Carolina, Columbia, SC 29208 USA Univ S Carolina Columbia SC USA 29208 S Carolina, Columbia, SC 29208 USA Stanford Univ, Stanford, CA 94305 USA Stanford Univ Stanford CA USA 94305Stanford Univ, Stanford, CA 94305 USA Tel Aviv Univ, IL-69978 Tel Aviv, Israel Tel Aviv Univ Tel Aviv Israel IL-69978 v Univ, IL-69978 Tel Aviv, Israel Tufts Univ, Medford, MA 02155 USA Tufts Univ Medford MA USA 02155Tufts Univ, Medford, MA 02155 USA Univ Wisconsin, Madison, WI 53706 USA Univ Wisconsin Madison WI USA 53706Univ Wisconsin, Madison, WI 53706 USA Yale Univ, New Haven, CT 06511 USA Yale Univ New Haven CT USA 06511Yale Univ, New Haven, CT 06511 USA
Titolo Testata:
PHYSICAL REVIEW LETTERS
fascicolo: 5, volume: 86, anno: 2001,
pagine: 770 - 774
SICI:
0031-9007(20010129)86:5<770:EEFALA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
PARTIAL-WAVE ANALYSIS; 450 GEV/C; SYSTEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Aitala, EM Univ Mississippi Oxford, University, MS 38677 USA Univ Mississippi Oxford University MS USA 38677 , MS 38677 USA
Citazione:
E.M. Aitala et al., "Experimental evidence for a light and broad scalar resonance in D+ -> pi(-)pi(+)pi(+) decay", PHYS REV L, 86(5), 2001, pp. 770-774

Abstract

From a sample of 1172 +/- 61 D+ --> pi (-) pi (+) pi (+) decays, we find Gamma (D+ --> pi (-) pi (+) pi (+))/Gamma (D+ --> K- pi (+) pi (+)) = 0.0311+/- 0.0018(-0.0026)(+0.0016). Using a coherent amplitude analysis to fit the Dalitz plot of these decays, we find strong evidence that a scalar resonance of mass 478(-23)(+24) +/- 17 MeV/c(2) and width 324(-40)(+42) +/- LI meV/c(2) accounts for approximately half or all decays.

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Documento generato il 05/04/20 alle ore 09:05:15