Publications [#308082] of Ashutosh V. Kotwal

Papers Published
  1. Abulencia, A; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG; Ambrose, D; Amerio, S; Amidei, D; Anastassov, A; Anikeev, K; Annovi, A; Antos, J; Aoki, M; Apollinari, G; Arguin, J-F; Arisawa, T; Artikov, A; Ashmanskas, W; Attal, A; Azfar, F; Azzi-Bacchetta, P; Azzurri, P; Bacchetta, N; Badgett, W; Barbaro-Galtieri, A; Barnes, VE; Barnett, BA; Baroiant, S; Bartsch, V; Bauer, G; Bedeschi, F; Behari, S; Belforte, S; Bellettini, G; Bellinger, J; Belloni, A; Benjamin, D; Beretvas, A; Beringer, J et al., Measurement of the Λb0 Lifetime in Λb0→J/ψΛ0 in pp̄ Collisions at s=1.96TeV, Physical Review Letters, vol. 98 no. 12 (2007) [doi] .

    We report a measurement of the Λb0 lifetime in the exclusive decay Λb0→J/ψΛ0 in pp̄ collisions at s=1.96TeV using an integrated luminosity of 1.0fb-1 of data collected by the CDF II detector at the Fermilab Tevatron. Using fully reconstructed decays, we measure τ(Λb0)=1.593-0.078+0.083(stat)±0.033(syst)ps. This is the single most precise measurement of τ(Λb0) and is 3.2σ higher than the current world average. © 2007 The American Physical Society.