@article{67f108f037c24d76bb37c447405b00a6,
title = "Measurement of the phase difference between short- and long-distance amplitudes in the B+→K+ μ+ μ- decay",
abstract = "A measurement of the phase difference between the short- and long-distance contributions to the B+→K+μ+μ- decay is performed by analysing the dimuon mass distribution. The analysis is based on pp collision data corresponding to an integrated luminosity of 3fb-1 collected by the LHCb experiment in 2011 and 2012. The long-distance contribution to the B+→K+μ+μ- decay is modelled as a sum of relativistic Breit–Wigner amplitudes representing different vector meson resonances decaying to muon pairs, each with their own magnitude and phase. The measured phases of the J/ ψ and ψ(2 S) resonances are such that the interference with the short-distance component in dimuon mass regions far from their pole masses is small. In addition, constraints are placed on the Wilson coefficients, C9 and C10, and the branching fraction of the short-distance component is measured.",
author = "{LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and F. Archilli and P. d{\textquoteright}Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and M. Baszczyk and V. Batozskaya and B. Batsukh and V. Battista and S. Blusk and Rudolph, {M. S.} and {Silva Coutinho}, R. and T. Skwarnicki and S. Stone",
note = "Publisher Copyright: {\textcopyright} 2017, CERN for the benefit of the LHCb collaboration.",
year = "2017",
month = mar,
day = "1",
doi = "10.1140/epjc/s10052-017-4703-2",
language = "English (US)",
volume = "77",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "3",
}