| Autor: |
Aaltonen, T, Alvarez Gonzálezv, B, 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, Blumenfeld, B, Bocci, A, Bodek, A, Bortoletto, D, Boudreau, J, Boveia, A, Braua, 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, Calancha, C, Camarda, S, Campanelli, M, Campbell, M, Canelli, F, Canepa, A, Carls, B, Carlsmith, D, Carosi, R, Carrillo, S, Carron, S, Casal, B, Castro, A, Catastini, P, Cauz, D, Cavaliere, V, Cavalli-Sforza, M, Cerri, A, Cerrito, L, Chen, CY, Chertok, M, Chlachidze, G, Chlebana, F, Cho, K, Chokheli, D, Chou, JP, Chung, WH, Chung, YS, Ciobanu, CI, Ciocci, MA, Clark, A, Compostella, G, Convery, ME, Conway, J, Corbo, M, Cordelli, M, Cox, CA, Cox, DJ, Crescioli, F, Cuenca Almenar, C, Cuevas, J, Culbertson, R, Dagenhart, D, Ascenzo, N |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Modern Physics Letters A, vol 32, iss 26 |
| Popis: |
The observation of the Y (4140) structure in B± → J/ΨφK± decays produced in pp collisions at √ s = 1.96 TeV is reported with a statistical significance greater than 5 standard deviations. A fit to the J/Ψφ mass spectrum is performed assuming the presence of a Breit-Wigner resonance. The fit yields a signal of 19 ± 6 (stat) ± 3 (syst) resonance events, and resonance mass and width of 4143.4+2.9 -3.0 (stat)±0.6 (syst) MeV/c2 and 15.3+10.4 -6.1 (stat)±2.5 (syst) MeV/c2, respectively. The parameters of this resonancelike structure are consistent with values reported from an earlier CDF analysis. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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