# Angular moments of the decay Λb0 → Λμ + μ − at low hadronic recoil

The LHCb Collaboration

Результат исследований: Материалы для журналаСтатья

13 Цитирования (Scopus)

### Аннотация

An analysis of the angular distribution of the decay Λb 0 → Λμ+μ is presented, using data collected with the LHCb detector between 2011 and 2016 and corresponding to an integrated luminosity of approximately 5 fb−1. Angular observables are determined using a moment analysis of the angular distribution at low hadronic recoil, corresponding to the dimuon invariant mass squared range 15 < q2 < 20 GeV2/c4. The full basis of observables is measured for the first time. The lepton-side, hadron-side and combined forward-backward asymmetries of the decay are determined to beAFBℓ=−0.39±0.04(stat)±0.01(syst),AFBh=−0.30±0.05(stat)±0.02(syst),AFBℓh=+0.25±0.04(stat)±0.01(syst). The measurements are consistent with Standard Model predictions.[Figure not available: see fulltext.].

Язык оригинала Английский 146 Journal of High Energy Physics 2018 9 https://doi.org/10.1007/JHEP09(2018)146 Опубликовано - 1 сен 2018

### ASJC Scopus subject areas

• Nuclear and High Energy Physics