NUK - logo
E-viri
Recenzirano Odprti dostop
  • Measurement of the lifetime...
    Ajaltouni, Z.; Amhis, Y.; Anderlini, L.; Andreotti, M.; Aquines Gutierrez, O.; Barlow, R.J.; Beddow, J.; Ben-Haim, E.; Bencivenni, G.; van Beuzekom, M.; Blouw, J.; Bocci, V.; Britsch, M.; Britton, T.; Cadeddu, S.; Campana, P.; Carboni, G.; Cardinale, R.; Carson, L.; Cenci, R.; Charpentier, Ph; Cheung, S.-F.; Cogan, J.; Cojocariu, L.; Comerma-Montells, A.; Couturier, B.; Di Canto, A.; Donleavy, S.; Dovbnya, A.; Dujany, G.; Egede, U.; Falabella, A.; Fol, P.; Gavardi, L.; Göbel, C.; Golutvin, A.; Grecu, A.; Gushchin, E.; He, J.; Henry, L.; van Herwijnen, E.; Heß, M.; Hill, D.; Hoballah, M.; Jacobsson, R.; Jawahery, A.; Jones, C.R.; Jurik, N.; Khurewathanakul, C.; Kreplin, K.; Kruse, F.; Kudryavtsev, V.; Lai, A.; Langhans, B.; van Leerdam, J.; Liles, M.; Luo, H.; Machefert, F.; Machikhiliyan, I.V.; Manca, G.; Martins Tostes, D.; McCann, M.; Minard, M.-N.; Muster, B.; Nakada, T.; Nguyen, A.D.; Nicol, M.; Orlandea, M.; Palombo, F.; Panman, J.; Parkes, C.; Patel, M.; Pilař, T.; Potterat, C.; Price, E.; Pritchard, A.; Raven, G.; Rihl, M.; Rives Molina, V.; Rouvinet, J.; Ruiz Valls, P.; Saborido Silva, J.J.; Schmelling, M.; Simi, G.; Smith, E.; Smith, M.; Sokoloff, M.D.; Stracka, S.; Thomas, C.; Tomassetti, L.; Ubeda Garcia, M.; Vacca, C.; Vázquez Sierra, C.; Vieira, D.; Wallace, C.; Wang, J.; Wilson, F.F.; Wormser, G.; Xing, Z.; Zhang, L.

    Physics letters. B, 03/2015, Letnik: 742
    Journal Article

    The difference in total widths between the Bc+ and B+ mesons is measured using a data sample corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment in 7 and 8 TeV centre-of-mass energy proton–proton collisions at the LHC. Through the study of the time evolution of Bc+→J/ψπ+ and B+→J/ψK+ decays, the width difference is measured to beΔΓ≡ΓBc+−ΓB+=4.46±0.14±0.07 mm−1c, where the first uncertainty is statistical and the second systematic. The known lifetime of the B+ meson is used to convert this to a precise measurement of the Bc+ lifetime,τBc+=513.4±11.0±5.7 fs, where the first uncertainty is statistical and the second is systematic.