Search for D<inf>(s)</inf><sup>+</sup> → π<sup>+</sup>μ<sup>+</sup>μ<sup>-</sup> and D<inf>(s)</inf><sup>+</sup> → π<sup>-</sup>μ<sup>+</sup>μ<sup>+</sup> decays

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. Anderlini, J. Anderson, R. AndreassenR. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, J. J. Back, C. Baesso, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, Th Bauer, A. Bay, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, M. Benayoun, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, M. O. Bettler, M. van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, J. van den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, H. Brown, I. Burducea, A. Bursche, G. Busetto, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, H. Carranza-Mejia, L. Carson, K. Carvalho Akiba, G. Casse

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Abstract

A search for non-resonant D<inf>(s)</inf><sup>+</sup> → π<sup>+</sup>μ<sup>+</sup>μ<sup>-</sup> and D<inf>(s)</inf><sup>+</sup> → π<sup>-</sup>μ<sup>+</sup>μ<sup>+</sup> decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb<sup>-1</sup>, √at s=7TeV recorded by the LHCb experiment in 2011. No signals are observed and the 90% (95%) confidence level (CL) limits on the branching fractions are found to be B(D<sup>+</sup> → π<sup>+</sup>μ<sup>+</sup>μ<sup>-</sup>)<7.3(8.3)×10<sup>-8</sup>, B(D<inf>s</inf><sup>+</sup> → π<sup>+</sup>μ<sup>+</sup>μ<sup>-</sup>)<4.1(4.8)×10<sup>-7</sup>, B(D<sup>+</sup> → π<sup>-</sup>μ<sup>+</sup>μ<sup>+</sup>)<2.2(2.5)×10<sup>-8</sup>, B(D<inf>s</inf><sup>+</sup> → π<sup>-</sup>μ<sup>+</sup>μ<sup>+</sup>)<1.2(1.4)×10<sup>-7</sup>. These limits are the most stringent to date. © 2013 CERN.
Original languageEnglish
Pages (from-to)203-212
Number of pages10
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOIs
Publication statusPublished - 23 Jul 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., ... Casse, G. (2013). Search for D<inf>(s)</inf><sup>+</sup> → π<sup>+</sup>μ<sup>+</sup>μ<sup>-</sup> and D<inf>(s)</inf><sup>+</sup> → π<sup>-</sup>μ<sup>+</sup>μ<sup>+</sup> decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 203-212. https://doi.org/10.1016/j.physletb.2013.06.010