Measurement of resonance parameters of orbitally excited narrow B0 mesons.

Journal: Physical Review Letters
Published:
Abstract

We report a measurement of resonance parameters of the orbitally excited (L=1) narrow B0 mesons in decays to B;{(*)+}pi;{-} using 1.7 fb;{-1} of data collected by the CDF II detector at the Fermilab Tevatron. The mass and width of the B_{2};{*0} state are measured to be m(B_{2};{*0})=5740.2_{-1.8};{+1.7}(stat)-0.8+0.9(syst) MeV/c;{2} and Gamma(B_{2};{*0})=22.7_{-3.2};{+3.8}(stat)-10.2+3.2(syst) MeV/c;{2}. The mass difference between the B_{2};{*0} and B10 states is measured to be 14.9_{-2.5};{+2.2}(stat)-1.4+1.2(syst) MeV/c;{2}, resulting in a B10 mass of 5725.3_{-2.2};{+1.6}(stat)-1.5+1.4(syst) MeV/c;{2}. This is currently the most precise measurement of the masses of these states and the first measurement of the B_{2};{*0} width.

Authors
T Aaltonen, J Adelman, T Akimoto, M Albrow, B González, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, A Apresyan, T Arisawa, A Artikov, W Ashmanskas, A Attal, A Aurisano, F Azfar, P Azzurri, W Badgett, A Barbaro Galtieri, V Barnes, B Barnett, V Bartsch, G Bauer, P-h Beauchemin, F Bedeschi, D Beecher, S Behari, G Bellettini, J Bellinger, D Benjamin, A Beretvas, J Beringer, A Bhatti, M Binkley, D Bisello, I Bizjak, R Blair, C Blocker, B Blumenfeld, A Bocci, A Bodek, V Boisvert, G Bolla, D Bortoletto, J Boudreau, A Boveia, B Brau, A Bridgeman, L Brigliadori, C Bromberg, E Brubaker, J Budagov, H Budd, S Budd, S Burke, K Burkett, G Busetto, P Bussey, A Buzatu, K Byrum, S Cabrera, C Calancha, 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, S Chang, Y Chen, M Chertok, G Chiarelli, G Chlachidze, F Chlebana, K Cho, D Chokheli, J Chou, G Choudalakis, S Chuang, K Chung, W Chung, Y Chung, T Chwalek, C Ciobanu, M Ciocci, A Clark, D Clark, G Compostella, M Convery, J Conway, M Cordelli, G Cortiana, C Cox, D Cox, F Crescioli, C Almenar, J Cuevas, R Culbertson, J Cully, D Dagenhart, M Datta, T Davies, P De Barbaro, S De Cecco, A Deisher, G De Lorenzo, M Dell'orso, C Deluca, L Demortier, J Deng, M Deninno, P Derwent, G Di Giovanni, C Dionisi, B Di Ruzza, J Dittmann, M D'onofrio, S Donati, P Dong, J Donini, T Dorigo, S Dube, J Efron, A Elagin, R Erbacher, D Errede, S Errede, R Eusebi, H Fang, S Farrington, W Fedorko, R Feild, M Feindt, J Fernandez, C Ferrazza, R Field, G Flanagan, R Forrest, M Frank, M Franklin, J Freeman, I Furic, M Gallinaro, J Galyardt, F Garberson, J Garcia, A Garfinkel, K Genser, H Gerberich, D Gerdes, A Gessler, S Giagu, V Giakoumopoulou, P Giannetti, K Gibson, J Gimmell, C Ginsburg, N Giokaris, M Giordani, P Giromini, M Giunta, G Giurgiu, V Glagolev, D Glenzinski, M Gold, N 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