Measurement of Form-Factor-Independent Observables in the Decay B0→K*0μ+μ−
- R. Aaij
- B. Adeva
- M. Adinolfi
- C. Adrover
- A. A. Affolder
- Z. Ajaltouni
- J. Albrecht
- F. Alessio
- Michael Thomas Alexander
- S. Ali
- G. Alkhazov
- P. Álvarez Cartelle
- Antonio Augusto Alves Junior
- S. Amato
- S. Amerio
- Y. Amhis
- L. Anderlini
- J. Anderson
- R. Andreassen
- J. E. Andrews
- R. B. Appleby
- O. Aquines Gutierrez
- F. Archilli
- A. Artamonov
- M. Artuso
- E. Aslanides
- G. Auriemma
- M. Baalouch
- S. Bachmann
- John J Back
- C. Baesso
- V. Balagura
- W. Baldini
- Roger John Barlow
- C. Barschel
- S. Barsuk
- W. Barter
- Thomas Bauer
- A. Bay
- J. Beddow
- F. Bedeschi
- I. Bediaga
- S. Belogurov
- K. Belous
- I. Belyaev
- E. Ben-Haim
- G. Bencivenni
- S. Benson
- J. Benton
- Alexander Berezhnoy
- R. Bernet
- M.-O. Bettler
- M. van Beuzekom
- A. Bień
- S. Bifani
- T. Bird
- A. Bizzeti
- P. M. Bjørnstad
- T. Blake
- F. Blanc
- J. Blouw
- S. Blusk
- V. Bocci
- A. Bondar
- N. Bondar
- Walter Marcello Bonivento
- S. Borghi
- A. Borgia
- T. J. V. Bowcock
- E. Bowen
- C. Bozzi
- T. Brambach
- J. F. 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. H. Callot
- M. Calvi
- M. Calvo Gomez
- A. Camboni
- P. Campana
- D. H. Cámpora Pérez
- A. Carbone
- G. Carboni
- R. Cardinale
- A. Cardini
- H. Carranza-Mejia
- L. Carson
- K. Carvalho Akiba
- G. Casse
- L. Castillo García
- M. Cattaneo
- MWM. Williams
Physical Review Letters · 2013 · American Physical Society
2 views · 0 downloads
Abstract
We present a measurement of form-factor-independent angular observables in the decay ${B}^{0}\ensuremath{\rightarrow}{K}^{*}(892{)}^{0}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$. The analysis is based on a data sample corresponding to an integrated luminosity of $1.0\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, collected by the LHCb experiment in $pp$ collisions at a center-of-mass energy of 7 TeV. Four observables are measured in six bins of the dimuon invariant mass squared ${q}^{2}$ in the range $0.1<{q}^{2}<19.0\text{ }\text{ }{\mathrm{GeV}}^{2}/{c}^{4}$. Agreement with recent theoretical predictions of the standard model is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations is observed in one ${q}^{2}$ bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%.