Measurement of the CP-violating phase Φ<inf>s</inf> in B<sup>0</sup><inf>s</inf> → J/ψπ<sup>+</sup>π<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, Y. Amhis, J. Anderson, R. B. Appleby, O. Aquines Gutierrez, F. ArchilliA. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, J. J. Back, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, A. Bates, C. Bauer, Th Bauer, A. Bay, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, M. Benayoun, G. Bencivenni, S. Benson, J. Benton, R. Bernet, M. O. Bettler, M. van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, C. Blanks, J. Blouw, S. Blusk, A. Bobrov, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, T. J.V. Bowcock, C. Bozzi, T. Brambach, J. van den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, H. Brown, K. de Bruyn, A. Büchler-Germann, I. Burducea, A. Bursche, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana, A. Carbone, G. Carboni, R. Cardinale

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

© 2012 Elsevier B.V. Measurement of the mixing-induced CP-violating phase Φs in B0s decays is of prime importance in probing new physics. Here 7421 ± 105 signal events from the dominantly CP-odd final state J/ψπ+π- are selected in 1 fb-1 of pp collision data collected at √ s = 7 TeV with the LHCb detector. A timedependent fit to the data yields a value of Φs = -0.019+0.173+0.004-0.174-0.003 rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found.
Original languageEnglish
Pages (from-to)378-386
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOIs
Publication statusPublished - 18 Jul 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Measurement of the CP-violating phase Φ<inf>s</inf> in B<sup>0</sup><inf>s</inf> → J/ψπ<sup>+</sup>π<sup>-</sup> decays'. Together they form a unique fingerprint.

  • Cite this

    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., Amhis, Y., Anderson, J., Appleby, R. B., Aquines Gutierrez, O., ... Cardinale, R. (2012). Measurement of the CP-violating phase Φ<inf>s</inf> in B<sup>0</sup><inf>s</inf> → J/ψπ<sup>+</sup>π<sup>-</sup> decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 378-386. https://doi.org/10.1016/j.physletb.2012.06.032