First Observation of D-0 - (D)over-bar(0) Oscillations in D-0 -> K+pi(-)pi(+)pi(-) Decays and Measurement of the Associated Coherence Parameters



Aaij, R, Beteta, C Abellan, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M
et al (show 725 more authors) (2016) First Observation of D-0 - (D)over-bar(0) Oscillations in D-0 -> K+pi(-)pi(+)pi(-) Decays and Measurement of the Associated Coherence Parameters. PHYSICAL REVIEW LETTERS, 116 (24). 241801-.

[img] Text
1602.07224v2.pdf - Published version

Download (578kB)
[img] Text (admin)
2017-05-12T11:29:39Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T12:26:02Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T13:25:16Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T14:25:19Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T15:25:26Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T16:25:55Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T17:25:18Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T18:26:09Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T19:25:36Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T20:25:55Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T21:26:18Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T22:27:00Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-12T23:32:44Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T01:27:38Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T02:26:57Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T03:27:03Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T04:49:46Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T05:26:55Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T06:26:04Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T07:26:24Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T08:26:50Z.atom - Unspecified

Download (0B)
[img] Text (admin)
2017-05-13T09:26:08Z.atom - Unspecified

Download (0B)

Abstract

Charm meson oscillations are observed in a time-dependent analysis of the ratio of D^{0}→K^{+}π^{-}π^{+}π^{-} to D^{0}→K^{-}π^{+}π^{-}π^{+} decay rates, using data corresponding to an integrated luminosity of 3.0  fb^{-1} recorded by the LHCb experiment. The measurements presented are sensitive to the phase-space averaged ratio of doubly Cabibbo-suppressed to Cabibbo-favored amplitudes r_{D}^{K3π} and the product of the coherence factor R_{D}^{K3π} and a charm mixing parameter y_{K3π}^{'}. The constraints measured are r_{D}^{K3π}=(5.67±0.12)×10^{-2}, which is the most precise determination to date, and R_{D}^{K3π}y_{K3π}^{'}=(0.3±1.8)×10^{-3}, which provides useful input for determinations of the CP-violating phase γ in B^{±}→DK^{±}, D→K^{∓}π^{±}π^{∓}π^{±} decays. The analysis also gives the most precise measurement of the D^{0}→K^{+}π^{-}π^{+}π^{-} branching fraction, and the first observation of D^{0}-D[over ¯]^{0} oscillations in this decay mode, with a significance of 8.2 standard deviations.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2015-057.html
Uncontrolled Keywords: LHCb Collaboration
Depositing User: Symplectic Admin
Date Deposited: 01 Jul 2016 09:31
Last Modified: 19 Jan 2023 07:35
DOI: 10.1103/PhysRevLett.116.241801
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3001969