Measurements of direct CP violating asymmetries in charmless decays of strange bottom mesons and bottom baryons

T Aaltonen; B Alvarez González; S Amerio; D Amidei; A Anastassov; A Annovi; J Antos; G Apollinari; J A Appel; A Apresyan; T Arisawa; A Artikov; J Asaadi; W Ashmanskas; B Auerbach; A Aurisano; F Azfar; W Badgett; A Barbaro-Galtieri; V E Barnes; B A Barnett; P Barria; P Bartos; M Bauce; G Bauer; F Bedeschi; D Beecher; S Behari; G Bellettini; J Bellinger; D Benjamin; A Beretvas; A Bhatti; M Binkley; D Bisello; I Bizjak; K R Bland; B Blumenfeld; A Bocci; A Bodek; D Bortoletto; J Boudreau; A Boveia; B Brau; L Brigliadori; A Brisuda; C Bromberg; E Brucken; M Bucciantonio; J Budagov; H S Budd; S Budd; K Burkett; G Busetto; P Bussey; A Buzatu; C Calancha; S Camarda; M Campanelli; M Campbell; F Canelli; A Canepa; B Carls; D Carlsmith; R Carosi; S Carrillo; S Carron; B Casal; M Casarsa; A Castro; P Catastini; D Cauz; V Cavaliere; M Cavalli-Sforza; A Cerri; L Cerrito; Y C Chen; M Chertok; G Chiarelli; G Chlachidze; F Chlebana; K Cho; D Chokheli; J P Chou; W H Chung; Y S Chung; C I Ciobanu; M A Ciocci; A Clark; G Compostella; M E Convery; J Conway; M Corbo; M Cordelli; C A Cox; D J Cox; F Crescioli; C Cuenca Almenar; J Cuevas; R Culbertson; D Dagenhart; N d'Ascenzo; M Datta; P de Barbaro; S De Cecco; G De Lorenzo; M Dell'orso; C Deluca; L Demortier; J Deng; M Deninno; F Devoto; M d'Errico; A Di Canto; B Di Ruzza; J R Dittmann; M D'Onofrio; S Donati; P Dong; M Dorigo; T Dorigo; K Ebina; A Elagin; A Eppig; R Erbacher; D Errede; S Errede; N Ershaidat; R Eusebi; H C Fang; S Farrington; M Feindt; J P Fernandez; C Ferrazza; R Field; G Flanagan; R Forrest; M J Frank; M Franklin; J C Freeman; Y Funakoshi; I Furic; M Gallinaro; J Galyardt; J E Garcia; A F Garfinkel; P Garosi; H Gerberich; E Gerchtein; S Giagu; V Giakoumopoulou; P Giannetti; K Gibson; C M Ginsburg; N Giokaris; P Giromini; M Giunta; G Giurgiu; V Glagolev; D Glenzinski; M Gold; D Goldin; N Goldschmidt; A Golossanov; G Gomez; G Gomez-Ceballos; M Goncharov; O González; I Gorelov; A T Goshaw; K Goulianos; A Gresele; S Grinstein; C Grosso-Pilcher; R C Group; J Guimaraes da Costa; Z Gunay-Unalan; C Haber; S R Hahn; E Halkiadakis; A Hamaguchi; J Y Han; F Happacher; K Hara; D Hare; M Hare; R F Harr; K Hatakeyama; C Hays; M Heck; J Heinrich; M Herndon; S Hewamanage; D Hidas; A Hocker; W Hopkins; D Horn; S Hou; R E Hughes; M Hurwitz; U Husemann; N Hussain; M Hussein; J Huston; G Introzzi; M Iori; A Ivanov; E James; D Jang; B Jayatilaka; E J Jeon; M K Jha; S Jindariani; W Johnson; M Jones; K K Joo; S Y Jun; T R Junk; T Kamon; P E Karchin; Y Kato; W Ketchum; J Keung; V Khotilovich; B Kilminster; D H Kim; H S Kim; H W Kim; J E Kim; M J Kim; S B Kim; S H Kim; Y K Kim; N Kimura; M Kirby; S Klimenko; K Kondo; D J Kong; J Konigsberg; A V Kotwal; M Kreps; J Kroll; D Krop; N Krumnack; M Kruse; V Krutelyov; T Kuhr; M Kurata; S Kwang; A T Laasanen; S Lami; S Lammel; M Lancaster; R L Lander; K Lannon; A Lath; G Latino; I Lazzizzera; T Lecompte; E Lee; H S Lee; J S Lee; S W Lee; S Leo; S Leone; J D Lewis; C-J Lin; J Linacre; M Lindgren; E Lipeles; A Lister; D O Litvintsev; C Liu; Q Liu; T Liu; S Lockwitz; N S Lockyer; A Loginov; D Lucchesi; J Lueck; P Lujan; P Lukens; G Lungu; J Lys; R Lysak; R Madrak; K Maeshima; K Makhoul; P Maksimovic; S Malik; G Manca; A Manousakis-Katsikakis; F Margaroli; C Marino; M Martínez; R Martínez-Ballarín; P Mastrandrea; M Mathis; M E Mattson; P Mazzanti; K S McFarland; P McIntyre; R McNulty; A Mehta; P Mehtala; A Menzione; C Mesropian; T Miao; D Mietlicki; A Mitra; H Miyake; S Moed; N Moggi; M N Mondragon; C S Moon; R Moore; M J Morello; J Morlock; P Movilla Fernandez; A Mukherjee; Th Muller; P Murat; M Mussini; J Nachtman; Y Nagai; J Naganoma; I Nakano; A Napier; J Nett; C Neu; M S Neubauer; J Nielsen; L Nodulman; O Norniella; E Nurse; L Oakes; S H Oh; Y D Oh; I Oksuzian; T Okusawa; R Orava; L Ortolan; S Pagan Griso; C Pagliarone; E Palencia; V Papadimitriou; A A Paramonov; J Patrick; G Pauletta; M Paulini; C Paus; D E Pellett; A Penzo; T J Phillips; G Piacentino; E Pianori; J Pilot; K Pitts; C Plager; L Pondrom; K Potamianos; O Poukhov; F Prokoshin; A Pronko; F Ptohos; E Pueschel; G Punzi; J Pursley; A Rahaman; V Ramakrishnan; N Ranjan; I Redondo; P Renton; M Rescigno; F Rimondi; L Ristori; A Robson; T Rodrigo; T Rodriguez; E Rogers; S Rolli; R Roser; M Rossi; F Rubbo; F Ruffini; A Ruiz; J Russ; V Rusu; A Safonov; W K Sakumoto; Y Sakurai; L Santi; L Sartori; K Sato; V Saveliev; A Savoy-Navarro; P Schlabach; A Schmidt; E E Schmidt; M P Schmidt; M Schmitt; T Schwarz; L Scodellaro; A Scribano; F Scuri; A Sedov; S Seidel; Y Seiya; A Semenov; F Sforza; A Sfyrla; S Z Shalhout; T Shears; P F Shepard; M Shimojima; S Shiraishi; M Shochet; I Shreyber; A Simonenko; P Sinervo; A Sissakian; K Sliwa; J R Smith; F D Snider; A Soha; S Somalwar; V Sorin; P Squillacioti; M Stancari; M Stanitzki; R St Denis; B Stelzer; O Stelzer-Chilton; D Stentz; J Strologas; G L Strycker; Y Sudo; A Sukhanov; I Suslov; K Takemasa; Y Takeuchi; J Tang; M Tecchio; P K Teng; J Thom; J Thome; G A Thompson; E Thomson; P Ttito-Guzmán; S Tkaczyk; D Toback; S Tokar; K Tollefson; T Tomura; D Tonelli; S Torre; D Torretta; P Totaro; M Trovato; Y Tu; F Ukegawa; S Uozumi; A Varganov; F Vázquez; G Velev; C Vellidis; M Vidal; I Vila; R Vilar; J Vizán; M Vogel; G Volpi; P Wagner; R L Wagner; T Wakisaka; R Wallny; S M Wang; A Warburton; D Waters; M Weinberger; W C Wester 3rd; B Whitehouse; D Whiteson; A B Wicklund; E Wicklund; S Wilbur; F Wick; H H Williams; J S Wilson; P Wilson; B L Winer; P Wittich; S Wolbers; H Wolfe; T Wright; X Wu; Z Wu; K Yamamoto; J Yamaoka; T Yang; U K Yang; Y C Yang; W-M Yao; G P Yeh; K Yi; J Yoh; K Yorita; T Yoshida; G B Yu; I Yu; S S Yu; J C Yun; A Zanetti; Y Zeng; S Zucchelli; CDF Collaboration

doi:10.1103/PhysRevLett.106.181802

Measurements of direct CP violating asymmetries in charmless decays of strange bottom mesons and bottom baryons

Phys Rev Lett. 2011 May 6;106(18):181802. doi: 10.1103/PhysRevLett.106.181802. Epub 2011 May 6.

Authors

T Aaltonen¹, B Alvarez González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, J A Appel, A Apresyan, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, B Auerbach, A Aurisano, F Azfar, W Badgett, A Barbaro-Galtieri, V E Barnes, B A Barnett, P Barria, P Bartos, M Bauce, G Bauer, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, A Bhatti, M Binkley, D Bisello, I Bizjak, K R Bland, B Blumenfeld, A Bocci, A Bodek, D Bortoletto, J Boudreau, A Boveia, B Brau, L Brigliadori, A Brisuda, C Bromberg, E Brucken, M Bucciantonio, J Budagov, H S Budd, S Budd, K Burkett, G Busetto, P Bussey, A Buzatu, C Calancha, S Camarda, M Campanelli, M Campbell, F Canelli, A Canepa, B Carls, D Carlsmith, R Carosi, S Carrillo, S Carron, B Casal, M Casarsa, A Castro, P Catastini, D Cauz, V Cavaliere, M Cavalli-Sforza, A Cerri, L Cerrito, Y C Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, J P Chou, W H Chung, Y S Chung, C I Ciobanu, M A Ciocci, A Clark, G Compostella, M E Convery, J Conway, M Corbo, M Cordelli, C A Cox, D J Cox, F Crescioli, C Cuenca Almenar, J Cuevas, R Culbertson, D Dagenhart, N d'Ascenzo, M Datta, P de Barbaro, S De Cecco, G De Lorenzo, M Dell'orso, C Deluca, L Demortier, J Deng, M Deninno, F Devoto, M d'Errico, A Di Canto, B Di Ruzza, J R Dittmann, M D'Onofrio, S Donati, P Dong, M Dorigo, T Dorigo, K Ebina, A Elagin, A Eppig, R Erbacher, D Errede, S Errede, N Ershaidat, R Eusebi, H C Fang, S Farrington, M Feindt, J P Fernandez, C Ferrazza, R Field, G Flanagan, R Forrest, M J Frank, M Franklin, J C Freeman, Y Funakoshi, I Furic, M Gallinaro, J Galyardt, J E Garcia, A F Garfinkel, P Garosi, H Gerberich, E Gerchtein, S Giagu, V Giakoumopoulou, P Giannetti, K Gibson, C M Ginsburg, N Giokaris, P Giromini, M Giunta, G Giurgiu, V Glagolev, D Glenzinski, M Gold, D Goldin, N Goldschmidt, A Golossanov, G Gomez, G Gomez-Ceballos, M Goncharov, O González, I Gorelov, A T Goshaw, K Goulianos, A Gresele, S Grinstein, C Grosso-Pilcher, R C Group, J Guimaraes da Costa, Z Gunay-Unalan, C Haber, S R Hahn, E Halkiadakis, A Hamaguchi, J Y Han, F Happacher, K Hara, D Hare, M Hare, R F Harr, K Hatakeyama, C Hays, M Heck, J Heinrich, M Herndon, S Hewamanage, D Hidas, A Hocker, W Hopkins, D Horn, S Hou, R E Hughes, M Hurwitz, U Husemann, N Hussain, M Hussein, J Huston, G Introzzi, M Iori, A Ivanov, E James, D Jang, B Jayatilaka, E J Jeon, M K Jha, S Jindariani, W Johnson, M Jones, K K Joo, S Y Jun, T R Junk, T Kamon, P E Karchin, Y Kato, W Ketchum, J Keung, V Khotilovich, B Kilminster, D H Kim, H S Kim, H W Kim, J E Kim, M J Kim, S B Kim, S H Kim, Y K Kim, N Kimura, M Kirby, S Klimenko, K Kondo, D J Kong, J Konigsberg, A V Kotwal, M Kreps, J Kroll, D Krop, N Krumnack, M Kruse, V Krutelyov, T Kuhr, M Kurata, S Kwang, A T Laasanen, S Lami, S Lammel, M Lancaster, R L Lander, K Lannon, A Lath, G Latino, I Lazzizzera, T Lecompte, E Lee, H S Lee, J S Lee, S W Lee, S Leo, S Leone, J D Lewis, C-J Lin, J Linacre, M Lindgren, E Lipeles, A Lister, D O Litvintsev, C Liu, Q Liu, T Liu, S Lockwitz, N S Lockyer, A Loginov, D Lucchesi, J Lueck, P Lujan, P Lukens, G Lungu, J Lys, R Lysak, R Madrak, K Maeshima, K Makhoul, P Maksimovic, S Malik, G Manca, A Manousakis-Katsikakis, F Margaroli, C Marino, M Martínez, R Martínez-Ballarín, P Mastrandrea, M Mathis, M E Mattson, P Mazzanti, K S McFarland, P McIntyre, R McNulty, A Mehta, P Mehtala, A Menzione, C Mesropian, T Miao, D Mietlicki, A Mitra, H Miyake, S Moed, N Moggi, M N Mondragon, C S Moon, R Moore, M J Morello, J Morlock, P Movilla Fernandez, A Mukherjee, Th Muller, P Murat, M Mussini, J Nachtman, Y Nagai, J Naganoma, I Nakano, A Napier, J Nett, C Neu, M S Neubauer, J Nielsen, L Nodulman, O Norniella, E Nurse, L Oakes, S H Oh, Y D Oh, I Oksuzian, T Okusawa, R Orava, L Ortolan, S Pagan Griso, C Pagliarone, E Palencia, V Papadimitriou, A A Paramonov, J Patrick, G Pauletta, M Paulini, C Paus, D E Pellett, A Penzo, T J Phillips, G Piacentino, E Pianori, J Pilot, K Pitts, C Plager, L Pondrom, K Potamianos, O Poukhov, F Prokoshin, A Pronko, F Ptohos, E Pueschel, G Punzi, J Pursley, A Rahaman, V Ramakrishnan, N Ranjan, I Redondo, P Renton, M Rescigno, F Rimondi, L Ristori, A Robson, T Rodrigo, T Rodriguez, E Rogers, S Rolli, R Roser, M Rossi, F Rubbo, F Ruffini, A Ruiz, J Russ, V Rusu, A Safonov, W K Sakumoto, Y Sakurai, L Santi, L Sartori, K Sato, V Saveliev, A Savoy-Navarro, P Schlabach, A Schmidt, E E Schmidt, M P Schmidt, M Schmitt, T Schwarz, L Scodellaro, A Scribano, F Scuri, A Sedov, S Seidel, Y Seiya, A Semenov, F Sforza, A Sfyrla, S Z Shalhout, T Shears, P F Shepard, M Shimojima, S Shiraishi, M Shochet, I Shreyber, A Simonenko, P Sinervo, A Sissakian, K Sliwa, J R Smith, F D Snider, A Soha, S Somalwar, V Sorin, P Squillacioti, M Stancari, M Stanitzki, R St Denis, B Stelzer, O Stelzer-Chilton, D Stentz, J Strologas, G L Strycker, Y Sudo, A Sukhanov, I Suslov, K Takemasa, Y Takeuchi, J Tang, M Tecchio, P K Teng, J Thom, J Thome, G A Thompson, E Thomson, P Ttito-Guzmán, S Tkaczyk, D Toback, S Tokar, K Tollefson, T Tomura, D Tonelli, S Torre, D Torretta, P Totaro, M Trovato, Y Tu, F Ukegawa, S Uozumi, A Varganov, F Vázquez, G Velev, C Vellidis, M Vidal, I Vila, R Vilar, J Vizán, M Vogel, G Volpi, P Wagner, R L Wagner, T Wakisaka, R Wallny, S M Wang, A Warburton, D Waters, M Weinberger, W C Wester 3rd, B Whitehouse, D Whiteson, A B Wicklund, E Wicklund, S Wilbur, F Wick, H H Williams, J S Wilson, P Wilson, B L Winer, P Wittich, S Wolbers, H Wolfe, T Wright, X Wu, Z Wu, K Yamamoto, J Yamaoka, T Yang, U K Yang, Y C Yang, W-M Yao, G P Yeh, K Yi, J Yoh, K Yorita, T Yoshida, G B Yu, I Yu, S S Yu, J C Yun, A Zanetti, Y Zeng, S Zucchelli; CDF Collaboration

Affiliation

¹ Division of High Energy Physics, Department of Physics, University of Helsinki, Helsinki Institute of Physics, Finland.

PMID: 21635084
DOI: 10.1103/PhysRevLett.106.181802

Abstract

We report measurements of direct CP-violating asymmetries in charmless decays of neutral bottom hadrons to pairs of charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding to 1 fb(-1) of integrated luminosity, we obtain the first measurements of direct CP violation in bottom strange mesons, A(CP)(B(s)(0)→K(-)π(+))=+0.39±0.15(stat)±0.08(syst), and bottom baryons, A(CP)(Λ(b)(0)→pπ(-))=+0.03±0.17(stat)±0.05(syst) and A(CP)(Λ(b)(0)→pK(-))=+0.37±0.17(stat)±0.03(syst). In addition, we measure CP violation in B(0)→K(+)π(-) decays with 3.5σ significance, A(CP)(B(0)→K(+)π(-))=-0.086±0.023(stat)±0.009(syst), in agreement with the current world average. Measurements of branching fractions of B(s)(0)→K(+)K(-) and B(0)→π(+)π(-) decays are also updated.