TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2017
DA  - 2017//
TI  - First Experimental Study of Photon Polarization in Radiative B-s(0) Decays
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 021801
EP  - 9pp
VL  - 118
IS  - 2
PB  - Amer Physical Soc
AB  - The polarization of photons produced in radiative B-s(0) decays is studied for the first time. The data are recorded by the LHCb experiment in pp collisions corresponding to an integrated luminosity of 3 fb(-1) at center-of-mass energies of 7 and 8 TeV. A time-dependent analysis of the B-s(0) ->phi gamma decay rate is conducted to determine the parameter A(Delta), which is related to the ratio of right-over left-handed photon polarization amplitudes in b -> s gamma transitions. A value of A(Delta) = -0.98(-0.52)(-0.20)(+0.46)(+0.23) is measured. This result is consistent with the standard model prediction within 2 standard deviations.
SN  - 0031-9007
UR  - http://arxiv.org/abs/1609.02032
UR  - https://doi.org/10.1103/PhysRevLett.118.021801
DO  - 10.1103/PhysRevLett.118.021801
LA  - English
N1  - WOS:000391926000005
ID  - LHCbCollaborationAaij_etal2017
ER  -