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http://hdl.handle.net/2445/132849| Title: | First Experimental Study of Photon Polarization in Radiative B0s Decays |
| Author: | Badalov, Alexey Calvo Gómez, Míriam Camboni, Alessandro Coquereau, Samuel Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Vilasis-Cardona, Xavier LHCb Collaboration |
| Keywords: | Física de partícules Experiments Particle physics Experiments |
| Issue Date: | 9-Jan-2017 |
| Publisher: | American Physical Society |
| Abstract: | 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. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.118.021801 |
| It is part of: | Physical Review Letters, 2017, vol. 118, num. 2, p. 021801 |
| URI: | http://hdl.handle.net/2445/132849 |
| Related resource: | https://doi.org/10.1103/PhysRevLett.118.021801 |
| ISSN: | 0031-9007 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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