Publications [#313629] of Ashutosh V. Kotwal

Papers Published
  1. Abulencia, A; Acosta, D; 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; Bachacou, H; 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; Haim, EB et al., Measurement of the ratio of branching fractions B(D0→K +π -)/B(D0→K -π +) using the CDF II detector, Physical Review D: Particles, Fields, Gravitation and Cosmology, vol. 74 no. 3 (2006) [doi] .

    Abstract:
    We present a measurement of R B, the ratio of the branching fraction for the rare decay D0→K +π - to that for the Cabibbo-favored decay D0→K -π +. Charge-conjugate decays are implicitly included. A signal of 2005±104 events for the decay D0→K +π - is obtained using the CDF II detector at the Fermilab Tevatron collider. The data set corresponds to an integrated luminosity of 0.35fb -1 produced in p̄p collisions at √s=1.96TeV. Assuming no mixing, we find R B=[4.05±0. 21(stat)±0.11(syst)]×10 -3. This measurement is consistent with the world average, and comparable in accuracy with the best measurements from other experiments. © 2006 The American Physical Society.