# First Observation of the Radiative Decay Λb0 → Λγ

(LHCb Collaboration), Alexander Rudolfovich Wagner

Результат исследований: Материалы для журналаСтатьярецензирование

7 Цитирования (Scopus)

## Аннотация

The radiative decay Λb0→Λγ is observed for the first time using a data sample of proton-proton collisions corresponding to an integrated luminosity of 1.7 fb-1 collected by the LHCb experiment at a center-of-mass energy of 13 TeV. Its branching fraction is measured exploiting the B0→K∗0γ decay as a normalization mode and is found to be B(Λb0→Λγ)=(7.1±1.5±0.6±0.7)×10-6, where the quoted uncertainties are statistical, systematic, and systematic from external inputs, respectively. This is the first observation of a radiative decay of a beauty baryon.

Язык оригинала Английский 031801 Physical Review Letters 123 3 https://doi.org/10.1103/PhysRevLett.123.031801 Опубликовано - 15 июл 2019

## ASJC Scopus subject areas

• Physics and Astronomy(all)