- 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
- et al.
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.
