Journal
PHYSICAL REVIEW LETTERS
Volume 118, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.021801
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Funding
- CERN
- CAPES (Brazil)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- MPG (Germany)
- INFN (Italy)
- FOM (Netherlands)
- NWO (Netherlands)
- MNiSW (Poland)
- NCN (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- FASO (Russia)
- MinECo (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NASU (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- AvH Foundation (Germany)
- EPLANET (European Union)
- Marie Sklodowska-Curie Actions (European Union)
- ERC (European Union)
- Conseil General de Haute-Savoie, Region Auvergne (France)
- Labex ENIGMASS, Region Auvergne (France)
- OCEVU, Region Auvergne (France)
- RFBR (Russia)
- Yandex LLC (Russia)
- GVA (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- Herchel Smith Fund (United Kingdom)
- Royal Society, Royal Commission for the Exhibition of 1851 (United Kingdom)
- Leverhulme Trust (United Kingdom)
- STFC [ST/K00140X/1, 1708182, ST/M004058/1, 1641747, LHCb Upgrades, LHCb, ST/J004332/1, ST/K003410/1, ST/K004646/1, ST/L003538/1, ST/N000331/1, ST/N001370/1, ST/H006737/1, 1707993] Funding Source: UKRI
- Science and Technology Facilities Council [1708182, ST/J004332/1, ST/K003410/1, ST/N000331/1, ST/H006737/1, 1565116, 1641747, ST/K004646/1, 1564711, LHCb Upgrades, GRIDPP, 1707993, ST/N000250/1, ST/L003538/1, LHCb, ST/N001370/1, ST/K00140X/1, ST/M004058/1] Funding Source: researchfish
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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.
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