Literature DB >> 17155387

Study of J/psi-->pp[over],LambdaLambda[over] and observation of eta(c)-->LambdaLambda[over] at Belle.

C-H Wu1, M-Z Wang, K Abe, I Adachi, H Aihara, V Aulchenko, T Aushev, S Bahinipati, A M Bakich, V Balagura, A Bay, K Belous, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, T E Browder, Y Chao, A Chen, W T Chen, B G Cheon, Y Choi, Y K Choi, A Chuvikov, S Cole, J Dalseno, M Danilov, M Dash, S Eidelman, N Gabyshev, T Gershon, A Go, G Gokhroo, A Gorisek, H Ha, J Haba, K Hayasaka, H Hayashii, M Hazumi, D Heffernan, T Hokuue, S Hou, W-S Hou, Y B Hsiung, T Iijima, K Inami, A Ishikawa, R Itoh, M Iwasaki, Y Iwasaki, J H Kang, S U Kataoka, N Katayama, H Kawai, T Kawasaki, H R Khan, H Kichimi, H J Kim, H O Kim, Y J Kim, P Krizan, P Krokovny, R Kulasiri, R Kumar, C C Kuo, A Kuzmin, Y-J Kwon, G Leder, J Lee, Y-J Lee, T Lesiak, S-W Lin, D Liventsev, G Majumder, F Mandl, T Matsumoto, A Matyja, S McOnie, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, Y Miyazaki, R Mizuk, T Mori, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, S Ogawa, T Ohshima, T Okabe, S Okuno, S L Olsen, Y Onuki, H Ozaki, P Pakhlov, H Palka, H Park, K S Park, R Pestotnik, L E Piilonen, Y Sakai, T Schietinger, O Schneider, A J Schwartz, R Seidl, M E Sevior, M Shapkin, H Shibuya, V Sidorov, A Sokolov, A Somov, N Soni, S Stanic, M Staric, H Stoeck, T Sumiyoshi, F Takasaki, M Tanaka, G N Taylor, Y Teramoto, X C Tian, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, S Uno, P Urquijo, Y Usov, G Varner, C C Wang, C H Wang, Y Watanabe, E Won, B D Yabsley, A Yamaguchi, Y Yamashita, L M Zhang, Z P Zhang.   

Abstract

We study the baryonic charmonium decays of B mesons B+-->etacK+ and B+-->J/psiK+, where the etac and J/psi subsequently decay into a pp[over] or LambdaLambda[over] pair. We measure the J/psi-->pp[over] and LambdaLambda[over] anisotropy parameters alphaB=-0.60+/-0.13+/-0.14 (pp[over]), -0.44+/-0.51+/-0.31 (LambdaLambda[over ]) and compare to results from e;{+}e;{-}-->J/psi formation experiments. We also report the first observation of etac-->LambdaLambda[over]. The measured branching fraction is B(etac-->LambdaLambda[over ])=(0.87(+0.24)/(-0.21)(stat)(+0.09/-0.14) (syst)+/-0.27(PDG))x10-3. This study is based on a 357 fb-1 data sample recorded on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider.

Entities:  

Year:  2006        PMID： 17155387     DOI： 10.1103/PhysRevLett.97.162003

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  1 in total

1.  Study of charmonium production in b -hadron decays and first evidence for the decay B s 0 → ϕ ϕ ϕ.

Authors:  R Aaij; B Adeva; M Adinolfi; Z Ajaltouni; S Akar; J Albrecht; F Alessio; M Alexander; S Ali; G Alkhazov; P Alvarez Cartelle; A A Alves; S Amato; S Amerio; Y Amhis; L An; L Anderlini; G Andreassi; M Andreotti; J E Andrews; R B Appleby; F Archilli; P d'Argent; J Arnau Romeu; A Artamonov; M Artuso; E Aslanides; G Auriemma; M Baalouch; I Babuschkin; S Bachmann; J J Back; A Badalov; C Baesso; S Baker; V Balagura; W Baldini; A Baranov; R J Barlow; C Barschel; S Barsuk; W Barter; F Baryshnikov; M Baszczyk; V Batozskaya; V Battista; A Bay; L Beaucourt; J Beddow; F Bedeschi; I Bediaga; A Beiter; L J Bel; V Bellee; N Belloli; K Belous; I Belyaev; E Ben-Haim; G Bencivenni; S Benson; S Beranek; A Berezhnoy; R Bernet; A Bertolin; C Betancourt; F Betti; M-O Bettler; M van Beuzekom; Ia Bezshyiko; S Bifani; P Billoir; A Birnkraut; A Bitadze; A Bizzeti; T Blake; F Blanc; J Blouw; S Blusk; V Bocci; T Boettcher; A Bondar; N Bondar; W Bonivento; I Bordyuzhin; A Borgheresi; S Borghi; M Borisyak; M Borsato; F Bossu; M Boubdir; T J V Bowcock; E Bowen; C Bozzi; S Braun; T Britton; J Brodzicka; E Buchanan; C Burr; A Bursche; J Buytaert; S Cadeddu; R Calabrese; M Calvi; M Calvo Gomez; A Camboni; P Campana; D H Campora Perez; L Capriotti; A Carbone; G Carboni; R Cardinale; A Cardini; P Carniti; L Carson; K Carvalho Akiba; G Casse; L Cassina; L Castillo Garcia; M Cattaneo; G Cavallero; R Cenci; D Chamont; M Charles; Ph Charpentier; G Chatzikonstantinidis; M Chefdeville; S Chen; S F Cheung; V Chobanova; M Chrzaszcz; A Chubykin; X Cid Vidal; G Ciezarek; P E L Clarke; M Clemencic; H V Cliff; J Closier; V Coco; J Cogan; E Cogneras; V Cogoni; L Cojocariu; P Collins; A Comerma-Montells; A Contu; A Cook; G Coombs; S Coquereau; G Corti; M Corvo; C M Costa Sobral; B Couturier; G A Cowan; D C Craik; A Crocombe; M Cruz Torres; R Currie; C D'Ambrosio; F Da Cunha Marinho; E Dall'Occo; J Dalseno; A Davis; K De Bruyn; S De Capua; M De Cian; J M De Miranda; L De Paula; M De Serio; P De Simone; C T Dean; D Decamp; M Deckenhoff; L Del Buono; H-P Dembinski; M Demmer; A Dendek; D Derkach; O Deschamps; F Dettori; B Dey; A Di Canto; P Di Nezza; H Dijkstra; F Dordei; M Dorigo; A Dosil Suárez; A Dovbnya; K Dreimanis; L Dufour; G Dujany; K Dungs; P Durante; R Dzhelyadin; M Dziewiecki; A Dziurda; A Dzyuba; N Déléage; S Easo; M Ebert; U Egede; V Egorychev; S Eidelman; S Eisenhardt; U Eitschberger; R Ekelhof; L Eklund; S Ely; S Esen; H M Evans; T Evans; A Falabella; N Farley; S Farry; R Fay; D Fazzini; D Ferguson; G Fernandez; A Fernandez Prieto; F Ferrari; F Ferreira Rodrigues; M Ferro-Luzzi; S Filippov; R A Fini; M Fiore; M Fiorini; M Firlej; C Fitzpatrick; T Fiutowski; F Fleuret; K Fohl; M Fontana; F Fontanelli; D C Forshaw; R Forty; V Franco Lima; M Frank; C Frei; J Fu; W Funk; E Furfaro; C Färber; A Gallas Torreira; D Galli; S Gallorini; S Gambetta; M Gandelman; P Gandini; Y Gao; L M Garcia Martin; J García Pardiñas; J Garra Tico; L Garrido; P J Garsed; D Gascon; C Gaspar; L Gavardi; G Gazzoni; D Gerick; E Gersabeck; M Gersabeck; T Gershon; Ph Ghez; S Gianì; V Gibson; O G Girard; L Giubega; K Gizdov; V V Gligorov; D Golubkov; A Golutvin; A Gomes; I V Gorelov; C Gotti; E Govorkova; R Graciani Diaz; L A Granado Cardoso; E Graugés; E Graverini; G Graziani; A Grecu; R Greim; P Griffith; L Grillo; B R Gruberg Cazon; O Grünberg; E Gushchin; Yu Guz; T Gys; C Göbel; T Hadavizadeh; C Hadjivasiliou; G Haefeli; C Haen; S C Haines; B Hamilton; X Han; S Hansmann-Menzemer; N Harnew; S T Harnew; J Harrison; M Hatch; J He; T Head; A Heister; K Hennessy; P Henrard; L Henry; E van Herwijnen; M Heß; A Hicheur; D Hill; C Hombach; P H Hopchev; Z-C Huard; W Hulsbergen; T Humair; M Hushchyn; D Hutchcroft; M Idzik; P Ilten; R Jacobsson; J Jalocha; E Jans; A Jawahery; F Jiang; M John; D Johnson; C R Jones; C Joram; B Jost; N Jurik; S Kandybei; M Karacson; J M Kariuki; S Karodia; M Kecke; M Kelsey; M Kenzie; T Ketel; E Khairullin; B Khanji; C Khurewathanakul; T Kirn; S Klaver; K Klimaszewski; T Klimkovich; 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M Schiller; H Schindler; M Schlupp; M Schmelling; T Schmelzer; B Schmidt; O Schneider; A Schopper; H F Schreiner; K Schubert; M Schubiger; M-H Schune; R Schwemmer; B Sciascia; A Sciubba; A Semennikov; A Sergi; N Serra; J Serrano; L Sestini; P Seyfert; M Shapkin; I Shapoval; Y Shcheglov; T Shears; L Shekhtman; V Shevchenko; B G Siddi; R Silva Coutinho; L Silva de Oliveira; G Simi; S Simone; M Sirendi; N Skidmore; T Skwarnicki; E Smith; I T Smith; J Smith; M Smith; L Soares Lavra; M D Sokoloff; F J P Soler; B Souza De Paula; B Spaan; P Spradlin; S Sridharan; F Stagni; M Stahl; S Stahl; P Stefko; S Stefkova; O Steinkamp; S Stemmle; O Stenyakin; H Stevens; S Stoica; S Stone; B Storaci; S Stracka; M E Stramaglia; M Straticiuc; U Straumann; L Sun; W Sutcliffe; K Swientek; V Syropoulos; M Szczekowski; T Szumlak; S T'Jampens; A Tayduganov; T Tekampe; M Teklishyn; G Tellarini; F Teubert; E Thomas; J van Tilburg; M J Tilley; V Tisserand; M Tobin; S Tolk; L Tomassetti; D Tonelli; S Topp-Joergensen; F Toriello; R Tourinho Jadallah Aoude; E Tournefier; S Tourneur; K Trabelsi; M Traill; M T Tran; M Tresch; A Trisovic; A Tsaregorodtsev; P Tsopelas; A Tully; N Tuning; A Ukleja; A Usachov; A Ustyuzhanin; U Uwer; C Vacca; V Vagnoni; A Valassi; S Valat; G Valenti; R Vazquez Gomez; P Vazquez Regueiro; S Vecchi; M van Veghel; J J Velthuis; M Veltri; G Veneziano; A Venkateswaran; T A Verlage; M Vernet; M Vesterinen; J V Viana Barbosa; B Viaud; D Vieira; M Vieites Diaz; H Viemann; X Vilasis-Cardona; M Vitti; V Volkov; A Vollhardt; B Voneki; A Vorobyev; V Vorobyev; C Voß; J A de Vries; C Vázquez Sierra; R Waldi; C Wallace; R Wallace; J Walsh; J Wang; D R Ward; H M Wark; N K Watson; D Websdale; A Weiden; M Whitehead; J Wicht; G Wilkinson; M Wilkinson; M Williams; M P Williams; M Williams; T Williams; F F Wilson; J Wimberley; M A Winn; J Wishahi; W Wislicki; M Witek; G Wormser; S A Wotton; K Wraight; K Wyllie; Y Xie; Z Xu; Z Yang; Z Yang; Y Yao; H Yin; J Yu; X Yuan; O Yushchenko; K A Zarebski; M Zavertyaev; L Zhang; Y Zhang; A Zhelezov; Y Zheng; X Zhu; V Zhukov; S Zucchelli
Journal:  Eur Phys J C Part Fields       Date:  2017-09-14       Impact factor: 4.590
  1 in total

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