TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2015
DA  - 2015//
TI  - Angular analysis of the B-0 -> K*(0) e(+) e(-) decay in the low-q(2) region
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 064
EP  - 23pp
VL  - 04
IS  - 4
PB  - Springer
KW  - Rare decay
KW  - Polarization
KW  - B physics
KW  - Flavour Changing Neutral Currents
KW  - Hadron-Hadron Scattering
AB  - An angular analysis of the B-0 -> K(*0)e(+) e(-) decay is performed using a data sample, corresponding to an integrated luminosity of 3.0 fb(-1), collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV during 2011 and 2012. For the first time several observables are measured in the dielectron mass squared (q(2)) interval between 0.002 and 1.120 GeV2/c(4). The angular observables F-L and A(T)(Re) which are related to the K-*0 polarisation and to the lepton forward-backward asymmetry, are measured to be F-L = 0.16 +/- 0.06 +/- 0.03 and A(T)(Re) = 0.10 +/- 0.18 +/- 0.05, where the first uncertainty is statistical and the second systematic. The angular observables A(T)((2)) and A(T)(Im) which are sensitive to the photon polarisation in this q(2) range, are found to be A(T)((2)) = – 0.23 +/- 0.23 +/- 0.05 and A(T)(Im) = 0.14 +/- 0.22 +/- 0.05. The results are consistent with Standard Model predictions.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1501.03038
UR  - https://doi.org/10.1007/JHEP04(2015)064
DO  - 10.1007/JHEP04(2015)064
LA  - English
N1  - WOS:000356853700001
ID  - LHCbCollaborationAaij_etal2015
ER  -