Details

Autor(en) / Beteiligte

• Aaij, R
• Abellán Beteta, C
• Adeva, B
• Adinolfi, M
• Aidala, C A
• Ajaltouni, Z
• Akar, S
• Albicocco, P
• Albrecht, J
• Alessio, F
• Alexander, M
• Alfonso Albero, A
• Alkhazov, G
• Alvarez Cartelle, P
• Alves, A A
• Amato, S
• Amerio, S
• Amhis, Y
• An, L
• Anderlini, L
• Andreassi, G
• Andreotti, M
• Andrews, J E
• Archilli, F
• Arnau Romeu, J
• Artamonov, A
• Artuso, M
• Arzymatov, K
• Aslanides, E
• Atzeni, M
• Audurier, B
• Bachmann, S
• Back, J J
• Baker, S
• Balagura, V
• Baldini, W
• Baranov, A
• Barlow, R J
• Barsuk, S
• Barter, W
• Bartolini, M
• Baryshnikov, F
• Batozskaya, V
• Batsukh, B
• Battig, A
• Battista, V
• Bay, A
• Beddow, J
• Bedeschi, F
• Bediaga, I
• Beiter, A
• Bel, L J
• Belin, S
• Beliy, N
• Bellee, V
• Belloli, N
• Belous, K
• Belyaev, I
• Bencivenni, G
• Ben-Haim, E
• Benson, S
• Beranek, S
• Berezhnoy, A
• Bernet, R
• Berninghoff, D
• Bertholet, E
• Bertolin, A
• Betancourt, C
• Betti, F
• Bettler, M O
• Bezshyiko, Ia
• Bhasin, S
• Bhom, J
• Bieker, M S
• Bifani, S
• Billoir, P
• Birnkraut, A
• Bizzeti, A
• Bjørn, M
• Blago, M P
• Blake, T
• Blanc, F
• Blusk, S
• Bobulska, D
• Bocci, V
• Boente Garcia, O
• Boettcher, T
• Bondar, A
• Bondar, N
• Borghi, S
• Borisyak, M
• Borsato, M
• Boubdir, M
• Bowcock, T J V
• Bozzi, C
• Braun, S
• Brodski, M
• Brodzicka, J
• Brossa Gonzalo, A
• Brundu, D

Titel

Amplitude Analysis of B^{±}→π^{±}K^{+}K^{-} Decays

Ist Teil von

• Physical review letters, 2019-12, Vol.123 (23), p.231802-231802, Article 231802

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2019

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• The first amplitude analysis of the B^{±}→π^{±}K^{+}K^{-} decay is reported based on a data sample corresponding to an integrated luminosity of 3.0  fb^{-1} of pp collisions recorded in 2011 and 2012 with the LHCb detector. The data are found to be best described by a coherent sum of five resonant structures plus a nonresonant component and a contribution from ππ↔KK S-wave rescattering. The dominant contributions in the π^{±} K^{∓} and K^{+} K^{-} systems are the nonresonant and the B^{±}→ρ(1450)^{0}π^{±} amplitudes, respectively, with fit fractions around 30%. For the rescattering contribution, a sizable fit fraction is observed. This component has the largest CP asymmetry reported to date for a single amplitude of (-66±4±2)%, where the first uncertainty is statistical and the second systematic. No significant CP violation is observed in the other contributions.