Towards an amplitude analysis of the decay ${\Lambda }_b^0\to p{K}^{-}\gamma$

Abstract

The helicity formalism applied to the radiative decay ${\Lambda }_b^0\to p{K}^{-}\gamma$ is presented for the first time in this paper. The aim is to provide the necessary formalism to be able to resolve the resonant $p{K}^{-}$ structures at the photon pole by means of an amplitude analysis. Experimental effects, such as resolution, are also discussed.

References in corpus (9)

• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Test of lepton universality with $B^0\to K^{\ast 0}{\ell }^{+}{\ell }^{-}$ decays
• Angular analysis of the $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity
• Photoproduction of hidden charm pentaquark states $P_c^{+}(4380)$ and $P_c^{+}(4450)$
• Test of lepton universality with ${\Lambda }_b^0\to p{K}^{-}{\ell }^{+}{\ell }^{-}$ decays
• Dalitz-plot decomposition for three-body decays
• SU(3)${}_F$ Analysis for Beauty Baryon Decays
• Quantum interference of particles and resonances

Cited by in corpus (3)

• ${\Lambda }_c\to {\Lambda }^{\ast }(1520)$ form factors from lattice QCD and improved analysis of the ${\Lambda }_b\to {\Lambda }^{\ast }(1520)$ and ${\Lambda }_b\to {\Lambda }_c^{\ast }(2595,2625)$ form factors
• ${\Lambda }_b\to {\Lambda }^{\ast }(1520){\ell }^{+}{\ell }^{-}$ form factors from lattice QCD
• Amplitude analysis of the ${\Lambda }_b^0\to p{K}^{-}\gamma$ decay