| Autor: |
Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J.C., Qi, N.D., Rong, G., Wang, P., Zhu, Y.S., Eigen, G., Ofte, I., Stugu, B., Abrams, G.S., Battaglia, M., Button-Shafer, J., Cahn, R.N., Charles, E., Gill, M.S., Groysman, Y., Jacobsen, R.G., Kadyk, J.A., Kerth, L.T., Kolomensky, Yu. G., Kukartsev, G., Lynch, G., Mir, L.M., Orimoto, T.J., Pripstein, M., Roe, N.A., Ronan, M.T., Wenzel, W.A., del Amo Sanchez, P., Barrett, M., Ford, K.E., Hart, A.J., Harrison, T.J., Hawkes, C.M., Morgan, S.E., Watson, A.T., Held, T., Koch, H., Lewandowski, B., Pelizaeus, M., Peters, K., Schroeder, T., Steinke, M., T. Boyd, J., Burke, J.P., Cottingham, W.N., Walker, D., Asgeirsson, D.J., Cuhadar-Donszelmann, T., Fulsom, B.G., Hearty, C., Knecht, N.S., Mattison, T.S., Mckenna, J.A., Khan, A., Kyberd, P., Saleem, M., Sherwood, D.J., Teodorescu, L., Blinov, V.E., Bukin, A.D., Druzhinin, V.P., Golubev, V.B., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu. I., Solodov, E.P., Todyshev, K. Yu, Best, D.S., Bondioli, M., Bruinsma, M., Chao, M., Curry, S., Eschrich, I., Kirkby, D., Lankford, A.J., Lund, P., Mandelkern, M., Mommsen, R.K., Roethel, W., Stoker, D.P., Abachi, S., Buchanan, C., Foulkes, S.D., Gary, J.W., Long, O., Shen, B.C., Wang, K., Zhang, L., Hadavand, H.K., Hill, E.J., Paar, H.P., Rahatlou, S., Sharma, V., Berryhill, J.W., Campagnari, C., Cunha, A., Dahmes, B., Hong, T.M., Kovalskyi, D., Richman, J.D., Beck, T.W., Eisner, A.M., Flacco, C.J., Heusch, C.A., Kroseberg, J., S. Lockman, W., Nesom, G., Schalk, T., Schumm, B.A., Seiden, A., Spradlin, P., Williams, D.C., Wilson, M.G., Albert, J., Chen, E., Dvoretskii, A., Fang, F., Hitlin, D.G., Narsky, I., Piatenko, T., Porter, F.C., Ryd, A., Samuel, A., Mancinelli, G., Meadows, B.T., Mishra, K., Sokoloff, M.D., Blanc, F., Bloom, P.C., Chen, Si, Ford, W.T., Hirschauer, J.F., Kreisel, A., Nagel, M., Nauenberg, U., Olivas, A., Ruddick, W.O., Smith, J.G., Ulmer, K.A., Wagner, S.R., Zhang, J., Chen, A., Eckhart, E.A., Soffer, A., Toki, W.H., Wilson, R.J., Winklmeier, F., Zeng, Q., Altenburg, D.D., Feltresi, E., Hauke, A., Jasper, H., Merkel, J., Petzold, A., Spaan, B., Brandt, T., Klose, V., Lacker, H.M., Mader, W.F., Nogowski, R., Schubert, J., Schubert, K.R., Schwierz, R., Sundermann, J.E., Volk, A., Bernard, D., Bonneaud, G.R., Latour, E., Thiebaux, Ch., Verderi, M., Clark, P.J., Gradl, W., Muheim, F., Playfer, S., Robertson, A.I., Xie, Y., Andreotti, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Luppi, E., Negrini, M., Petrella, A., Piemontese, L., Prencipe, E., Anulli, F., Baldini-Ferroli, R., Calcaterra, A., de Sangro, R., Finocchiaro, G., Pacetti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rama, M., Zallo, A., Buzzo, A., Capra, R., Contri, R., Lo Vetere, M., Macri, M.M., Monge, M.R., Passaggio, S., Patrignani, C., Robutti, E., Santroni, A., Tosi, S., Brandenburg, G., Chaisanguanthum, K.S., Morii, M., Wu, J., Dubitzky, R.S., Marks, J., Schenk, S., Uwer, U., Bard, D.J., Bhimji, W., Bowerman, D.A., Dauncey, P.D., Egede, U., Flack, R.L., Nash, J.A., Nikolich, M.B., Panduro Vazquez, W., Behera, P.K., Chai, X., Charles, M.J., Mallik, U., Meyer, N.T., Ziegler, V., Cochran, J., Crawley, H.B., Dong, L., Eyges, V., Meyer, W.T., Prell, S., Rosenberg, E.I., Rubin, A.E., Gritsan, A.V., Denig, A.G., Fritsch, M., Schott, G., Arnaud, N., Davier, M., Grosdidier, G., Höcker, A., Le Diberder, F., Lepeltier, V., Lutz, A.M., Oyanguren, A., Pruvot, S., Rodier, S., Roudeau, P., Schune, M.H., Stocchi, A., Wang, W.F., Wormser, G., Cheng, C.H., Lange, D.J., Wright, D.M., Chavez, C.A., Forster, I.J., Fry, J.R., Gabathuler, E., Gamet, R., George, K.A., Hutchcroft, D.E., Payne, D.J., Schofield, K.C., Touramanis, C., Bevan, A.J., Di Lodovico, F., Menges, W., Sacco, R., Cowan, G., Flaecher, H.U., Hopkins, D.A., Jackson, P.S., Mcmahon, T.R., Ricciardi, S., Salvatore, F., Wren, A.C., Brown, D.N., Davis, C.L., Allison, J., R. Barlow, N., Barlow, R.J., Chia, Y.M., Edgar, C.L., Lafferty, G.D., Naisbit, M.T., Williams, J.C., Yi, J.I., Chen, C., Hulsbergen, W.D., Jawahery, A., Lae, C.K., Roberts, D.A., Simi, G., Tuggle, J., Blaylock, G., Dallapiccola, C., Hertzbach, S.S., Li, Xiaojian, Moore, T.B., Saremi, S., Staengle, H., Cowan, R., Sciolla, G., Sekula, S.J., Spitznagel, M., Taylor, F., Yamamoto, R.K., Kim, H., Mclachlin, S.E., Patel, P.M., Robertson, S.H., Lazzaro, A., Lombardo, V., Palombo, F., Bauer, J.M., Cremaldi, L., Eschenburg, V., Godang, R., Kroeger, R., Sanders, D.A., Summers, D.J., Zhao, H.W., Brunet, S., Cote, D., Simard, M., Taras, P., Viaud, F.B., Nicholson, H., Cavallo, N., de Nardo, G., Fabozzi, F., Gatto, C., Lista, L., Monorchio, D., Paolucci, P., Piccolo, D., Sciacca, C., Baak, M.A., Raven, G., Snoek, H.L., Jessop, C.P., Losecco, J.M., Allmendinger, T., Benelli, G., Corwin, L.A., Gan, K.K., Honscheid, K., Hufnagel, D., Jackson, P.D., Kagan, H., Kass, R., Rahimi, A.M., Regensburger, J.J., Ter-Antonyan, R., Wong, Q.K., Blount, N.L., Brau, J., Frey, R., Igonkina, O., Kolb, J.A., Lu, M., Rahmat, R., Sinev, N.B., Strom, D., Strube, J., Torrence, E., Gaz, A., Margoni, M., Morandin, M., Pompili, A., Posocco, M., Rotondo, M., Simonetto, F., Stroili, R., Voci, C., Benayoun, M., Briand, H., Chauveau, J., David, P., del Buono, L., de La Vaissière, Ch., Hamon, O., Hartfiel, B.L., John, M.J.J., Leruste, Ph., Malclès, J., Ocariz, J., Roos, L., Therin, G., Gladney, L., Panetta, J., Biasini, M., Covarelli, R., Angelini, C., Batignani, G., Bettarini, S., Bucci, F., Calderini, G., Carpinelli, M., Cenci, R., Forti, F., Giorgi, M.A., Lusiani, A., Marchiori, G., Mazur, M.A., Morganti, M., Neri, N., Paoloni, E., Rizzo, G., Walsh, J.J., Haire, M., Judd, D., Wagoner, D.E., Biesiada, J., Danielson, N., Elmer, P., Lau, Y.P., Lu, C., Olsen, J., Smith, A. J. S., Telnov, A.V., Bellini, F., Cavoto, G., d'Orazio, A., del Re, D., Di Marco, E., Faccini, R., Ferrarotto, F., Ferroni, F., Gaspero, M., Li Gioi, L., Mazzoni, M.A., Morganti, S., Piredda, G., Polci, F., Safai Tehrani, F., Voena, C., Ebert, M., Schröder, H., Waldi, R., Adye, T., de Groot, N., Franek, B., Olaiya, E.O., Wilson, F.F., Aleksan, R., Emery, S., Gaidot, A., Ganzhur, S.F., Hamel de Monchenault, G., Kozanecki, W., Legendre, M., Vasseur, G., Yèche, Ch., Zito, M., R. Chen, X., Liu, Hong, Park, W., Purohit, M.V., Wilson, J.R., Allen, M.T., Aston, D., Bartoldus, R., Bechtle, P., Berger, N., Claus, R., Coleman, J.P., Convery, M.R., Cristinziani, M., Dingfelder, J.C., Dorfan, J., Dubois-Felsmann, G.P., Dujmic, D., Dunwoodie, W., Field, R.C., Glanzman, T., Gowdy, S.J., Graham, M.T., Grenier, P., Hast, C., Hryn'Ova, T., Innes, W.R., Kelsey, M.H., Kim, P., Leith, D. W. G. S., Li, S., Luitz, S., Luth, V., Lynch, H.L., Macfarlane, D.B., Marsiske, H., Messner, R., Muller, D.R., O'Grady, C.P., Ozcan, V.E., Perazzo, A., Perl, M., Pulliam, T., Ratcliff, B.N., Roodman, A., Salnikov, A.A., Schindler, R.H., Schwiening, J., Snyder, A., Stelzer, J., Su, D., Sullivan, M.K., Suzuki, K., Swain, S.K., Thompson, J.M., Va'Vra, J., van Bakel, N., Weaver, M., Weinstein, A. J. R., Wisniewski, W.J., Wittgen, M., Wright, D.H., Yarritu, A.K., Yi, K., Young, C.C., Burchat, P.R., Edwards, A.J., Majewski, S.A., Petersen, B.A., Roat, C., Wilden, L., Ahmed, Mohamed-Salem, Alam, M.S., Bula, R., Ernst, J.A., Jain, V., Pan, B., Saeed, M.A., Wappler, F.R., B. Zain, S., Bugg, W., Krishnamurthy, M., Spanier, S.M., Eckmann, R., Ritchie, J.L., Satpathy, A., Schilling, C.J., Schwitters, R.F., Izen, J.M., Lou, X.C., Ye, S., Bianchi, F., Gallo, F., Gamba, D., Bomben, M., Bosisio, L., Cartaro, C., Cossutti, F., Della Ricca, G., Dittongo, S., Lanceri, L., Vitale, L., Azzolini, V., Lopez-March, N., Martinez-Vidal, F., Banerjee, Sw., Bhuyan, B., Brown, C.M., Fortin, D., Hamano, K., Kowalewski, R., Nugent, I.M., Roney, J.M., Sobie, R.J., Back, J.J., Harrison, P.F., Latham, T.E., Mohanty, G.B., Pappagallo, M., Band, H.R., Chen, X., Cheng, B., Dasu, S., Datta, M., Flood, K.T., Hollar, J.J., Kutter, P.E., Mellado, B., Mihalyi, A., Pan, Y., Pierini, M., Prepost, R., Wu, S.L., Yu, Z., Neal, H., Halyo, V. |
| Přispěvatelé: |
Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), BABAR |
| Jazyk: |
angličtina |
| Rok vydání: |
2006 |
| Předmět: |
|
| Zdroj: |
XXXIII International Conference on High Energy Physics (ICHEP'06)
XXXIII International Conference on High Energy Physics (ICHEP'06), Jul 2006, Moscow, Russia |
| Popis: |
We present a study of two states decaying to Lambda_c^+K^-pi^+ using the BaBar detector at the SLAC PEP-II asymmetric-energy e^+e^- storage rings. We use an integrated luminosity of 288.5 fb^{-1} collected at the center-of-mass energy sqrt{s} = 10.58 GeV, near the peak of the Upsilon(4S) resonance, plus 27.2 fb^{-1} collected approximately 40 MeV below this energy. We search for the particles Xi_{c}(2980)^+ and Xi_{c}(3077)^+, recently discovered by the Belle Collaboration, in their decays to Lambda_c^+K^-pi^+, where Lambda_c^+rightarrow pK^-pi^+. We find a signal with 7.0 sigma significance for the Xi_c(2980)^+ state with a mass difference with respect to the Lambda_c^+ of (680.6pm1.9pm1.0) MeV/c^2 (first error is statistical and second error is systematic). The measured width for this state is (23.6pm2.8pm1.3) MeV, and the yield is 284pm45pm46 events. We find a signal with 8.6 sigma significance for the Xi_c(3077)^+ state with a mass difference with respect to the Lambda_c^+ of (790.0pm0.7pm0.2) MeV/c^2, a width of (6.2pm1.6pm0.5) MeV, and a yield of 204pm35pm12 events. The Xi_{c}(2980)^+ is found to decay resonantly through the intermediate state Sigma_c(2455)^{++}K^- with 4.9 sigma significance and non-resonantly to Lambda_c^+K^-pi^+ with 4.1 sigma significance. With 5.8 sigma significance, the Xi_c(3077)^+ is found to decay resonantly through Sigma_c(2455)^{++}K^-, and with 4.6 sigma significance, it is found to decay through Sigma_c(2520)^{++}K^-. The significance of the signal for the non-resonant decay Xi_c(3077)^+rightarrow Lambda_c^+K^-pi^+ is 1.4 sigma. These results are preliminary. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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