%0 Journal Article
%T Radiative b-baryon decays to measure the photon and b-baryon polarization
%A Garcia Martin, L. M.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Roy, S.
%A Sain, R.
%A Sinha, R.
%J European Physical Journal C
%D 2019
%V 79
%N 7
%I Springer
%@ 1434-6044
%G English
%F GarciaMartin_etal2019
%O WOS:000477914900005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4079), last updated on Wed, 10 Apr 2024 12:38:24 +0000
%X The radiative decays of b-baryons facilitate the direct measurement of photon helicity in b -> s gamma transitions thus serving as an important test of physics beyond the Standard Model. In this paper we analyze the complete angular distribution of ground state b-baryon radiative decays to multibody final states assuming an initially polarized b-baryon sample. Our sensitivity study suggests that the photon polarization asymmetry can be extracted to a good accuracy along with a simultaneous measurement of the initial b-baryon polarization. With higher yields of b-baryons, achievable in subsequent runs of the Large Hadron Collider (LHC), we find that the photon polarization measurement can play a pivotal role in constraining different new physics scenarios.
%R 10.1140/epjc/s10052-019-7123-7
%U https://arxiv.org/abs/1902.04870
%U https://doi.org/10.1140/epjc/s10052-019-7123-7
%P 634 - 10pp