Observation of the Baryonic Flavor-Changing Neutral Current Decay Lambda(0)(b) -> Lambda mu(+)mu(-)

Aaltonen, T; Gonzalez, Ba; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, Ja; Apresyan, A; Arisawa, T; Artikov, A; Asaadi, J; Ashmanskas, W; Auerbach, B; Aurisano, A; Azfar, F; Badgett, W; Barbaro Galtieri, A; Barnes, Ve; Barnett, Ba; Barria, P; Bartos, P; Bauce, M; Bauer, G; Bedeschi, F; Beecher, D; Behari, S; Bellettini, G; Bellinger, J; Benjamin, D; Beretvas, A; Bhatti, A; Binkley, M; Bisello, D; Bizjak, I; Bland, Kr; Blocker, C; Blumenfeld, B; Bocci, A; Bodek, A; Bortoletto, D; Boudreau, J; Boveia, A; Brau, B; Brigliadori, L; Brisuda, A; Bromberg, C; Brucken, E; Bucciantonio, M; Budagov, J; Budd, Hs; Budd, S; Burkett, K; Busetto, G; Bussey, P; Buzatu, A; Cabrera, S; Calancha, C; Camarda, S; Campanelli, M; Campbell, M; Canelli, F; Canepa, A; Carls, B; Carlsmith, D; Carosi, R; Carrillo, S; Carron, S; Casal, B; Casarsa, M; Castro, A; Catastini, P; Cauz, D; Cavaliere, V; Cavalli Sforza, M; Cerri, A; Cerrito, L; Chen, Yc; Chertok, M; Chiarelli, G; Chlachidze, G; Chlebana, F; Cho, K; Chokheli, D; Chou, Jp; Chung, Wh; Chung, Ys; Ciobanu, Ci; Ciocci, Ma; Clark, A; Clark, D; Compostella, G; Convery, Me; Conway, J; Corbo, M; Cordelli, M; Cox, Ca; Cox, Dj; Crescioli, F; Almenar, Cc; Cuevas, J; Culbertson, R; Dagenhart, D; D'Ascenzo, N; Datta, M; De Barbaro, P; De Cecco, S; De Lorenzo, G; Dell'Orso, Mauro; Deluca, C; Demortier, L; Deng, J; Deninno, M; Devoto, F; D'Errico, M; Di Canto, A; Di Ruzza, B; Dittmann, Jr; D'Onofrio, M; Donati, Simone; Dong, P; Dorigo, T; Ebina, K; Elagin, A; Eppig, A; Erbacher, R; Errede, D; Errede, S; Ershaidat, N; Eusebi, R; Fang, Hc; Farrington, S; Feindt, M; Fernandez, Jp; Ferrazza, C; Field, R; Flanagan, G; Forrest, R; Frank, Mj; Franklin, M; Freeman, Jc; Furic, I; Gallinaro, M; Galyardt, J; Garcia, Je; Garfinkel, Af; Garosi, P; Gerberich, H; Gerchtein, E; Giagu, S; Giakoumopoulou, V; Giannetti, P; Gibson, K; Ginsburg, Cm; Giokaris, N; Giromini, P; Giunta, M; Giurgiu, G; Glagolev, V; Glenzinski, D; Gold, M; Goldin, D; Goldschmidt, N; Golossanov, A; Gomez, G; Gomez Ceballos, G; Goncharov, M; Gonzalez, O; Gorelov, I; Goshaw, At; Goulianos, K; Gresele, A; Grinstein, S; Grosso Pilcher, C; Group, Rc; da Costa JG,; Gunay Unalan, Z; Haber, C; Hahn, Sr; Halkiadakis, E; Hamaguchi, A; Han, Jy; Happacher, F; Hara, K; Hare, D; Hare, M; Harr, Rf; Hatakeyama, K; Hays, C; Heck, M; Heinrich, J; Herndon, M; Hewamanage, S; Hidas, D; Hocker, A; Hopkins, W; Horn, D; Hou, S; Hughes, Re; Hurwitz, M; Husemann, U; Hussain, N; Hussein, M; Huston, J; Introzzi, G; Iori, M; Ivanov, A; James, E; Jang, D; Jayatilaka, B; Jeon, Ej; Jha, Mk; Jindariani, S; Johnson, W; Jones, M; Joo, Kk; Jun, Sy; Junk, Tr; Kamon, T; Karchin, Pe; Kato, Y; Ketchum, W; Keung, J; Khotilovich, V; Kilminster, B; Kim, Dh; Kim, Hs; Kim, Hw; Kim, Je; Kim, Mj; Kim, Sb; Kim, Sh; Kim, Yk; Kimura, N; Klimenko, S; Kondo, K; Kong, Dj; Konigsberg, J; Korytov, A; Kotwal, Av; Kreps, M; Kroll, J; Krop, D; Krumnack, N; Kruse, M; Krutelyov, V; Kuhr, T; Kurata, M; Kwang, S; Laasanen, At; Lami, S; Lammel, S; Lancaster, M; Lander, Rl; Lannon, K; Lath, A; Latino, G; Lazzizzera, I; Lecompte, T; Lee, E; Lee, Hs; Lee, Js; Lee, Sw; Leo, S; Leone, S; Lewis, Jd; Lin, Cj; Linacre, J; Lindgren, M; Lipeles, E; Lister, A; Litvintsev, Do; Liu, C; Liu, Q; Liu, T; Lockwitz, S; Lockyer, Ns; Loginov, A; Lucchesi, D; Lueck, J; Lujan, P; Lukens, P; Lungu, G; Lys, J; Lysak, R; Madrak, R; Maeshima, K; Makhoul, K; Maksimovic, P; Malik, S; Manca, G; Manousakis Katsikakis, A; Margaroli, F; Marino, C; Martinez, M; Martinez Ballarin, R; Mastrandrea, P; Mathis, M; Mattson, Me; Mazzanti, P; Mcfarland, Ks; Mcintyre, P; Mcnulty, R; Mehta, A; Mehtala, P; Menzione, A; Mesropian, C; Miao, T; Mietlicki, D; Mitra, A; Miyake, H; Moed, S; Moggi, N; Mondragon, Mn; Moon, Cs; Moore, R; Morello, Mj; Morlock, J; Fernandez, Pm; Mukherjee, A; Muller, T; Murat, P; Mussini, M; Nachtman, J; Nagai, Y; Naganoma, J; Nakano, I; Napier, A; Nett, J; Neu, C; Neubauer, Ms; Nielsen, J; Nodulman, L; Norniella, O; Nurse, E; Oakes, L; Sh, Oh; Yd, Oh; Oksuzian, I; Okusawa, T; Orava, R; Ortolan, L; Griso, Sp; Pagliarone, C; Palencia, E; Papadimitriou, V; Paramonov, Aa; Patrick, J; Pauletta, G; Paulini, M; Paus, C; Pellett, De; Penzo, A; Phillips, Tj; Piacentino, G; Pianori, E; Pilot, J; Pitts, K; Plager, C; Pondrom, L; Potamianos, K; Poukhov, O; Prokoshin, F; Pronko, A; Ptohos, F; Pueschel, E; Punzi, Giovanni; Pursley, J; Rahaman, A; Ramakrishnan, V; Ranjan, N; Redondo, I; Renton, P; Rescigno, M; Rimondi, F; Ristori, L; Robson, A; Rodrigo, T; Rodriguez, T; Rogers, E; Rolli, S; Roser, R; Rossi, M; Ruffini, F; Ruiz, A; Russ, J; Rusu, V; Safonov, A; Sakumoto, Wk; Santi, L; Sartori, L; Sato, K; Saveliev, V; Savoy Navarro, A; Schlabach, P; Schmidt, A; Schmidt, Ee; Schmidt, Mp; Schmitt, M; Schwarz, T; Scodellaro, L; Scribano, A; Scuri, F; Sedov, A; Seidel, S; Seiya, Y; Semenov, A; Sforza, F; Sfyrla, A; Shalhout, Sz; Shears, T; Shepard, Pf; Shimojima, M; Shiraishi, S; Shochet, M; Shreyber, I; Simonenko, A; Sinervo, P; Sissakian, A; Sliwa, K; Smith, Jr; Snider, Fd; Soha, A; Somalwar, S; Sorin, V; Squillacioti, P; Stanitzki, M; Denis, Rs; Stelzer, B; Stelzer Chilton, O; Stentz, D; Strologas, J; Strycker, Gl; Sudo, Y; Sukhanov, A; Suslov, I; Takemasa, K; Takeuchi, Y; Tang, J; Tecchio, M; Teng, Pk; Thom, J; Thome, J; Thompson, Ga; Thomson, E; Ttito Guzman, P; Tkaczyk, S; Toback, D; Tokar, S; Tollefson, K; Tomura, T; Tonelli, D; Torre, S; Torretta, D; Totaro, P; Trovato, M; Y, Tu; Turini, N; Ukegawa, F; Uozumi, S; Varganov, A; Vataga, E; Vazquez, F; Velev, G; Vellidis, C; Vidal, M; Vila, I; Vilar, R; Vogel, M; Volpi, G; Wagner, P; Wagner, Rl; Wakisaka, T; Wallny, R; Wang, Sm; Warburton, A; Waters, D; Weinberger, M; Wenzel, H; Wester, Wc; Whitehouse, B; Whiteson, D; Wicklund, Ab; Wicklund, E; Wilbur, S; Wick, F; Williams, Hh; Wilson, Js; Wilson, P; Winer, Bl; Wittich, P; Wolbers, S; Wolfe, H; Wright, T; X, Wu; Z, Wu; Yamamoto, K; Yamaoka, J; Yang, T; Yang, Uk; Yang, Yc; Yao, Wm; Yeh, Gp; K, Yi; Yoh, J; Yorita, K; Yoshida, T; Gb, Yu; I, Yu; Ss, Yu; Yun, Jc; Zanetti, A; Zeng, Y; Zucchelli Sones, M.; Jonsson, P.; Joo, K. K.; Jun, S. Y.; Jung, J. E.; Junk, T. R.; Juste, A.; Kaadze, K.; Kajfasz, E.; Kamon, T.; Kar, D.; Karchin, P. E.; Karmanov, D.; Kasper, P. A.; Kato, Y.; Katsanos, I.; Kehoe, R.; Kephart, R.; Kermiche, S.; Ketchum, W.; Keung, J.; Khalatyan, N.; Khanov, A.; Kharchilava, A.; Kharzheev, Y. N.; Khatidze, D.; Khotilovich, V.; Kilminster, B.; Kim, D. H.; Kim, H. S.; Kim, H. W.; Kim, J. E.; Kim, M. J.; Kim, S. B.; Kim, S. H.; Kim, Y. K.; Kimura, N.; Kirby, M. H.; Kirsch, L.; Kirsch, M.; Klimenko, S.; Kohli, J. M.; Kondo, K.; Kong, D. J.; Konigsberg, J.; Korytov, A.; Kotwal, A. V.; Kozelov, A. V.; Kraus, J.; Kreps, M.; Kroll, J.; Krop, D.; Krumnack, N.; Kruse, M.; Krutelyov, V.; Kuhr, T.; Kulkarni, N. P.; Kumar, A.; Kupco, A.; Kurata, M.; Kurca, T.; Kuzmin, V. A.; Kvita, J.; Kwang, S.; Laasanen, A. T.; Lami, S.; Lammel, S.; Lammers, S.; Lancaster, M.; Lander, R. L.; Landsberg, G.; Lannon, K.; Lath, A.; Latino, G.; Lazzizzera, I.; Lebrun, P.; Lecompte, T.; Lee, E.; Lee, H. S.; Lee, H. S.; Lee, J. S.; Lee, S. W.; Lee, W. M.; Lellouch, J.; Leone, S.; Lewis, J. D.; Li, L.; Q. Z., Li; Lietti, S. M.; Lim, J. K.; Linacre, J.; Lincoln, D.; Lin, C. J.; Lindgren, M.; Linnemann, J.; Lipaev, V. V.; Lipeles, E.; Lipton, R.; Lister, A.; Litvintsev, D. O.; Liu, C.; Liu, T.; Liu, Y.; Liu, Z.; Lobodenko, A.; Lockyer, N. S.; Loginov, A.; Lokajicek, M.; Lovas, L.; Love, P.; Lubatti, H. J.; Lucchesi, D.; Lueck, J.; Lujan, P.; Lukens, P.; Luna Garcia, R.; Lungu, G.; Lyon, A. L.; Lysak, R.; Lys, J.; Maciel, A. K. A.; Mackin, D.; Macqueen, D.; Madar, R.; Madrak, R.; Maeshima, K.; Magana Villalba, R.; Makhoul, K.; Maksimovic, P.; Mal, P. K.; Malde, S.; Malik, S.; Malik, S.; Malyshev, V. L.; Manca, G.; Manousakis Katsikakis, A.; Maravin, Y.; Margaroli, F.; Marino, C.; Marino, C. P.; Martin, A.; Martin, V.; Martinez, M.; Martinez Ballarin, R.; Martinez Ortega, J.; Mastrandrea, P.; Mathis, M.; Mattson, M. E.; Mazzanti, P.; Mccarthy, R.; Mcfarland, K. S.; Mcgivern, C. L.; Mcintyre, P.; Mcnulty, R.; Mehta, A.; Mehtala, P.; Meijer, M. M.; Melnitchouk, A.; Menezes, D.; Menzione, A.; Mercadante, P. G.; Merkin, M.; Mesropian, C.; Meyer, A.; Meyer, J.; Miao, T.; Mietlicki, D.; Miladinovic, N.; Miller, R.; Mills, C.; Milnik, M.; Mitra, A.; Mitselmakher, G.; Miyake, H.; Moed, S.; Moggi, N.; Mondal, N. K.; Mondragon, M. N.; Moon, C. S.; Moore, R.; Morello, M. J.; Morlock, J.; Moulik, T.; Movilla, Fernandez P.; Muanza, G. S.; Mukherjee, A.; Mulhearn, M.; Muller, T. h.; Muelmenstaedt, J.; Murat, P.; Mussini, M.; Nachtman, J.; Nagai, Y.; Naganoma, J.; Nagy, E.; Naimuddin, M.; Nakamura, K.; Nakano, I.; Napier, A.; Narain, M.; Nayyar, R.; Neal, H. A.; Negret, J. P.; Nett, J.; Neu, C.; Neubauer, M. S.; Neubauer, S.; Neustroev, P.; Nielsen, J.; Nilsen, H.; Nodulman, L.; Norman, M.; Norniella, O.; Novaes, S. F.; Nunnemann, T.; Nurse, E.; Oakes, L.; Obrant, G.; S. H., Oh; Y. D., Oh; Oksuzian, I.; Okusawa, T.; Onoprienko, D.; Orava, R.; Orduna, J.; Osman, N.; Osta, J.; Osterberg, K.; Otero, y. Garzon G. J.; Owen, M.; Padilla, M.; Pagan, Griso S.; Pagliarone, C.; Palencia, E.; Pangilinan, M.; Papadimitriou, V.; Papaikonomou, A.; Paramanov, A. A.; Parashar, N.; Parihar, V.; Park, S. J.; Park, S. K.; Parks, B.; Parsons, J.; Partridge, R.; Parua, N.; Pashapour, S.; Patrick, J.; Patwa, A.; Pauletta, G.; Paulini, M.; Paus, C.; Peiffer, T.; Pellett, D. E.; Penning, B.; Penzo, A.; Perfilov, M.; Peters, K.; Peters, Y.; Petrillo, G.; Petroff, P.; Phillips, T. J.; Piacentino, G.; Pianori, E.; Piegaia, R.; Pinera, L.; Piper, J.; Pitts, K.; Plager, C.; Pleier, M. A.; Podesta Lerma, P. L. M.; Podstavkov, V. M.; Pol, M. E.; Polozov, P.; Pondrom, L.; Popov, A. V.; Potamianos, K.; Poukhov, O.; Prewitt, M.; Price, D.; Prokoshin, F.; Pronko, A.; Protopopescu, S.; Ptohos, F.; Pueschel, E.; Punzi, G.; Pursley, J.; Qian, J.; Quadt, A.; Quinn, B.; Rademacker, J.; Rahaman, A.; Ramakrishnan, V.; Rangel, M. S.; Ranjan, K.; Ranjan, N.; Ratoff, P. N.; Razumov, I.; Redondo, I.; Renkel, P.; Renton, P.; Renz, M.; Rescigno, M.; Rich, P.; Richter, S.; Rijssenbeek, M.; Rimondi, F.; Ripp Baudot, I.; Ristori, L.; Rizatdinova, F.; Robson, A.; Rodrigo, T.; Rodriguez, T.; Rogers, E.; Rolli, S.; Rominsky, M.; Roser, R.; Rossi, M.; Rossin, R.; Roy, P.; Royon, C.; Rubinov, P.; Ruchti, R.; Ruiz, A.; Russ, J.; Rusu, V.; Rutherford, B.; Saarikko, H.; Safonov, A.; Safronov, G.; Sajot, G.; Sakumoto, W. K.; Sanchez Hernandez, A.; Sanders, M. P.; Sanghi, B.; Santi, L.; Sartori, L.; Sato, K.; Savage, G.; Saveliev, V.; Savoy Navarro, A.; Sawyer, L.; Scanlon, T.; Schaile, D.; Schamberger, R. D.; Scheglov, Y.; Schellman, H.; Schlabach, P.; Schliephake, T.; Schlobohm, S.; Schmidt, A.; Schmidt, E. E.; Schmidt, M. A.; Schmidt, M. P.; Schmitt, M.; Schwanenberger, C.; Schwarz, T.; Schwienhorst, R.; Scodellaro, L.; Scribano, A.; Scuri, F.; Sedov, A.; Seidel, S.; Seiya, Y.; Sekaric, J.; Semenov, A.; Severini, H.; Sexton Kennedy, L.; Sforza, F.; Sfyrla, A.; Shabalina, E.; Shalhout, S. Z.; Shary, V.; Shchukin, A. A.; Shears, T.; Shepard, P. F.; Shimojima, M.; Shiraishi, S.; Shivpuri, R. K.; Shochet, M.; Shon, Y.; Shreyber, I.; Simak, V.; Simonenko, A.; Sinervo, P.; Sirotenko, V.; Sisakyan, A.; Skubic, P.; Slattery, P.; Slaughter, A. J.; Slaunwhite, J.; Sliwa, K.; Smirnov, D.; Smith, J. R.; Snider, F. D.; Snihur, R.; Snow, G. R.; Snow, J.; Snyder, S.; Soha, A.; Soeldner Rembold, S.; Somalwar, S.; Sonnenschein, L.; Sopczak, A.; Sorin, V.; Sosebee, M.; Soustruznik, K.; Spurlock, B.; Squillacioti, P.; Stanitzki, M.; Stark, J.; S. t. Denis R.,; Stelzer, B.; Stelzer Chilton, O.; Stentz, D.; Stolin, V.; Stoyanova, D. A.; Strang, M. A.; Strauss, E.; Strauss, M.; Stroehmer, R.; Strologas, J.; Strom, D.; Strycker, G. L.; Stutte, L.; Suh, J. S.; Sukhanov, A.; Suslov, I.; Svoisky, P.; Taffard, A.; Takahashi, M.; Takashima, R.; Takeuchi, Y.; Tanaka, R.; Tanasijczuk, A.; Tang, J.; Taylor, W.; Tecchio, M.; Teng, P. K.; Thom, J.; Thome, J.; Thompson, G. A.; Thomson, E.; Tiller, B.; Tipton, P.; Titov, M.; Tkaczyk, S.

doi:10.1103/PhysRevLett.107.201802

We report the first observation of the baryonic flavor-changing neutral current decay Lambda(0)(b) -> Lambda mu(+)mu(-) with 24 signal events and a statistical significance of 5.8 Gaussian standard deviations. This measurement uses a p (p) over bar collisions data sample corresponding to 6.8 fb(-1) at root s = 1.96 TeV collected by the CDF II detector at the Tevatron collider. The total and differential branching ratios for Lambda(0)(b) -> Lambda mu(+)mu(-) are measured. We find B(Lambda(0)(b) -> Lambda mu(+)mu(-)) = [1.73 +/- 0.42(stat) +/- (syst)] x 10(-6). We also report the first measurement of the differential branching ratio of B(s)(0) -> phi mu(+)mu(-), using 49 signal events. In addition, we report branching ratios for B(+) -> K(+)mu(+)mu(-), B(0) -> K(0)mu(+)mu(-), and B -> K*(892)mu(+)mu(-) decays.