Measurements of Lambda(+)(c) branching fractions of Cabibbo-suppressed decay modes involving Lambda and Sigma(0)

Articolo

Data di Pubblicazione:

2007

Citazione:

Measurements of Lambda(+)(c) branching fractions of Cabibbo-suppressed decay modes involving Lambda and Sigma(0) / B. Aubert, R. Barate, D. Boutigny, F. Couderc, Y. Karyotakis, J. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges, A. Palano, M. Pappagallo, A. Pompili, J. Chen, N. Qi, G. Rong, P. Wang, Y. Zhu, G. Eigen, I. Ofte, B. Stugu, G. Abrams, M. Battaglia, D. Best, A. Breon, D. Brown, J. Button-Shafer, R. Cahn, E. Charles, C. Day, M. Gill, A. Gritsan, Y. Groysman, R. Jacobsen, R. Kadel, J. Kadyk, L. Kerth, Y. Kolomensky, G. Kukartsev, G. Lynch, L. Mir, P. Oddone, T. Orimoto, M. Pripstein, N. Roe, M. Ronan, W. Wenzel, M. Barrett, K. Ford, T. Harrison, A. Hart, C. Hawkes, S. Morgan, A. Watson, M. Fritsch, K. Goetzen, T. Held, H. Koch, B. Lewandowski, M. Pelizaeus, K. Peters, T. Schroeder, M. Steinke, J. Boyd, J. Burke, W. Cottingham, T. Cuhadar-Donszelmann, B. Fulsom, C. Hearty, N. Knecht, T. Mattison, J. McKenna, A. Khan, P. Kyberd, M. Saleem, L. Teodorescu, A. Blinov, V. Blinov, A. Bukin, V. Druzhinin, V. Golubev, E. Kravchenko, A. Onuchin, S. Serednyakov, Y. Skovpen, E. Solodov, A. Yushkov, M. Bondioli, M. Bruinsma, M. Chao, S. Curry, I. Eschrich, D. Kirkby, A. Lankford, P. Lund, M. Mandelkern, R. Mommsen, W. Roethel, D. Stoker, C. Buchanan, B. Hartfiel, S. Foulkes, J. Gary, O. Long, B. Shen, K. Wang, L. Zhang, D. del Re, H. Hadavand, E. Hill, D. MacFarlane, H. Paar, S. Rahatlou, V. Sharma, J. Berryhill, C. Campagnari, A. Cunha, B. Dahmes, T. Hong, M. Mazur, J. Richman, W. Verkerke, T. Beck, A. Eisner, C. Flacco, C. Heusch, J. Kroseberg, W. Lockman, G. Nesom, T. Schalk, B. Schumm, A. Seiden, P. Spradlin, D. Williams, M. Wilson, J. Albert, E. Chen, G. Dubois-Felsmann, A. Dvoretskii, D. Hitlin, J. Minamora, I. Narsky, T. Piatenko, F. Porter, A. Ryd, A. Samuel, R. Andreassen, G. Mancinelli, B. Meadows, M. Sokoloff, F. Blanc, P. Bloom, S. Chen, W. Ford, J. Hirschauer, A. Kreisel, U. Nauenberg, A. Olivas, W. Ruddick, J. Smith, K. Ulmer, S. Wagner, J. Zhang, A. Chen, E. Eckhart, A. Soffer, W. Toki, R. Wilson, F. Winklmeier, Q. Zeng, D. Altenburg, E. Feltresi, A. Hauke, B. Spaan, T. Brandt, J. Brose, M. Dickopp, V. Klose, H. Lacker, R. Nogowski, S. Otto, A. Petzold, J. Schubert, K. Schubert, R. Schwierz, J. Sundermann, D. Bernard, G. Bonneaud, P. Grenier, E. Latour, S. Schrenk, C. Thiebaux, G. Vasileiadis, M. Verderi, D. Bard, P. Clark, W. Gradl, F. Muheim, S. Playfer, Y. Xie, M. Andreotti, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Luppi, M. Negrini, L. Piemontese, F. Anulli, R. Baldini-Ferroli, A. Calcaterra, R. de Sangro, G. Finocchiaro, P. Patteri, I. Peruzzi, M. Piccolo, A. Zallo, A. Buzzo, R. Capra, R. Contri, M. Vetere, M. Macri, M. Monge, S. Passaggio, C. Patrignani, E. Robutti, A. Santroni, S. Tosi, G. Brandenburg, K. Chaisanguanthum, M. Morii, J. Wu, R. Dubitzky, U. Langenegger, J. Marks, S. Schenk, U. Uwer, W. Bhimji, D. Bowerman, P. Dauncey, U. Egede, R. Flack, J. Gaillard, J. Nash, M. Nikolich, W. Vazquez, X. Chai, M. Charles, W. Mader, U. Mallik, V. Ziegler, J. Cochran, H. Crawley, L. Dong, V. Eyges, W. Meyer, S. Prell, E. Rosenberg, A. Rubin, J. Yi, G. Schott, N. Arnaud, M. Davier, X. Giroux, G. Grosdidier, A. Höcker, F. Diberder, V. Lepeltier, A. Lutz, A. Oyanguren, T. Petersen, S. Plaszczynski, S. Rodier, P. Roudeau, M. Schune, A. Stocchi, W. Wang, G. Wormser, C. Cheng, D. Lange, D. Wright, A. Bevan, C. Chavez, I. Forster, J. Fry, E. Gabathuler, R. Gamet, K. George, D. Hutchcroft, R. Parry, D. Payne, K. Schofield, C. Touramanis, F. Lodovico, W. Menges, R. Sacco, C. Brown, G. Cowan, H. Flaecher, M. Green, D. Hopkins, P. Jackson, T. McMahon, S. Ricciardi, F. Salvatore, D. Brown, C. Davis, J. Allison, N. Barlow, R. Barlow, Y. Chia, C. Edgar, M. Hodgkinson, M. Kelly, G. Lafferty, M. Naisbit, J. Williams, C. Chen, W. Hulsbergen, A. Jawahery, D. Kovalskyi, C. Lae, D. Roberts, G. Simi, G. Blaylock, C. Dallapiccola, S. Hertzbach, R. Kofler, X. Li, T. Moo

Abstract:

We measure the branching ratios of the Cabibbo-suppressed decays Lambda(+)(c)->Lambda K+ and Lambda(+)(c)->Sigma K-0(+) relative to the Cabibbo-favored decay modes Lambda(+)(c)->Lambda pi(+) and Lambda(+)(c)->Sigma(0)pi(+) to be 0.044 +/- 0.004 (stat.)+/- 0.003 (syst.) and 0.038 +/- 0.005 (stat.)+/- 0.003 (syst.), respectively. We set an upper limit on the branching ratio at the 90% confidence level for Lambda(+)(c)->Lambda K+pi(+)pi(-) of 4.1x10(-2) relative to Lambda(+)(c)->Lambda pi(+), and for Lambda(+)(c)->Sigma K-0(+)pi(+)pi(-) of 2.0x10(-2) relative to Lambda(+)(c)->Sigma(0)pi(+). We also measure the branching fraction for the Cabibbo-favored mode Lambda(+)(c)->Sigma(0)pi(+) relative to Lambda(+)(c)->Lambda pi(+) to be 0.977 +/- 0.015 (stat.)+/- 0.051 (syst.). This analysis was performed using a data sample with an integrated luminosity of 125 fb(-1) collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC.

Tipologia IRIS:

01 - Articolo su periodico

Keywords:

baryon decays; physics

Elenco autori: