Details

Autor(en) / Beteiligte

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

Titel

Measurement of the ratio of branching fractions BR(B0 -> K0 gamma)/BR(Bs0 -> phi gamma) and the direct CP asymmetry in B0 -> K0 gamma

Ist Teil von

• Nuclear physics. B, 2013, Vol.867, p.1-18

Ort / Verlag

Elsevier

Erscheinungsjahr

2013

Link zum Volltext

Quelle

ScienceDirect Journals (5 years ago - present)

Beschreibungen/Notizen

• The ratio of branching fractions of the radiative B decays B0 -> K*0 gamma and Bs0 phi gamma has been measured using an integrated luminosity of 1.0 fb-1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of sqrt(s)=7 TeV. The value obtained is BR(B0 -> K*0 gamma)/BR(Bs0 -> phi gamma) = 1.23 +/- 0.06(stat.) +/- 0.04(syst.) +/- 0.10(fs/fd), where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for BR(B0 -> K*0 gamma), the branching fraction BR(Bs0 -> phi gamma) is measured to be (3.5 +/- 0.4) x 10^{-5}. The direct CP asymmetry in B0 -> K*0 gamma decays has also been measured with the same data and found to be A(CP)(B0 -> K*0 gamma) = (0.8 +/- 1.7(stat.) +/- 0.9(syst.))%. Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations.