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Observation of the y (4 1 4 0) structure in the J/mass spectrum in B ±±→K ± decays

  • Author(s): 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
  • et al.

Published Web Location

http://doi.org/10.1142/S0217732317501395
No data is associated with this publication.
Abstract

© 2017 World Scientific Publishing Company. 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.

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