Measurement of the branching fractions of the decays D <sup>+</sup> → K <sup>−</sup> K <sup>+</sup> K <sup>+</sup> , D <sup>+</sup> → π <sup>−</sup> π <sup>+</sup> K <sup>+</sup> and D <inf>s</inf><sup>+</sup> → π <sup>−</sup> K <sup>+</sup> K <sup>+</sup>



Aaij, R, Abellán Beteta, C, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F
et al (show 90 more authors) (2019) Measurement of the branching fractions of the decays D <sup>+</sup> → K <sup>−</sup> K <sup>+</sup> K <sup>+</sup> , D <sup>+</sup> → π <sup>−</sup> π <sup>+</sup> K <sup>+</sup> and D <inf>s</inf><sup>+</sup> → π <sup>−</sup> K <sup>+</sup> K <sup>+</sup>. Journal of High Energy Physics, 2019 (3).

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Abstract

© 2019, The Author(s). The branching fractions of the doubly Cabibbo-suppressed decays D + → K − K + K + , D + → π − π + K + and D s+ → π − K + K + are measured using the decays D + → K − π + π + and D s+ → K − K + π + as normalisation channels. The measurements are performed using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2.0 fb −1 . The results areℬ(D+→K−K+K+)ℬ(D+→K−π+π+)=(6.541±0.025±0.042)×10−4,ℬ(D+→π−π+K+)ℬ(D+→K−π+π+)=(5.231±0.009±0.023)×10−3,ℬ(Ds+→π−K+K+)ℬ(Ds+→K−K+π+),=(2.372±0.024±0.025)×10−3, where the uncertainties are statistical and systematic, respectively. These are the most precise measurements up to date.[Figure not available: see fulltext.].

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 07 May 2019 10:35
Last Modified: 19 Oct 2021 07:14
DOI: 10.1007/JHEP03(2019)176
Open Access URL: https://doi.org/10.1007/JHEP03(2019)176
URI: https://livrepository.liverpool.ac.uk/id/eprint/3040068