@Article{GarciaMartin_etal2019, author="Garcia Martin, L. M. and Jashal, B. K. and Martinez-Vidal, F. and Oyanguren, A. and Roy, S. and Sain, R. and Sinha, R.", title="Radiative b-baryon decays to measure the photon and b-baryon polarization", journal="European Physical Journal C", year="2019", publisher="Springer", volume="79", number="7", pages="634 - 10pp", abstract="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.", optnote="WOS:000477914900005", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4079), last updated on Wed, 10 Apr 2024 12:38:24 +0000", issn="1434-6044", doi="10.1140/epjc/s10052-019-7123-7", opturl="https://arxiv.org/abs/1902.04870", opturl="https://doi.org/10.1140/epjc/s10052-019-7123-7", language="English" }