publication . Other literature type . Preprint . Article . 2017

Angular distribution of polarised Λ b baryons decaying to Λℓ + ℓ −

Thomas Blake; Michal Kreps;
  • Published: 22 Nov 2017
  • Publisher: Springer Science and Business Media LLC
  • Country: United Kingdom
Rare $b \to s\ell^+\ell^-$ flavour-changing-neutral-current processes provide important tests of the Standard Model of particle physics. Angular observables in exclusive $b \to s\ell^+\ell^-$ processes can be particularly powerful as they allow hadronic uncertainties to be controlled. Amongst the exclusive processes that have been studied by experiments, the decay $\Lambda_b\to \Lambda\ell^+\ell^-$ is unique in that the $\Lambda_b$ baryon can be produced polarised. In this paper, we derive an expression for the angular distribution of the $\Lambda_b\to \Lambda\ell^+\ell^-$ decay for the case where the $\Lambda_b$ baryon is produced polarised. This extends the nu...
arXiv: High Energy Physics::PhenomenologyHigh Energy Physics::Experiment
free text keywords: High Energy Physics - Phenomenology, Beyond Standard Model, Heavy Quark Physics, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798, QC, Quantum electrodynamics, Physics, Baryon, Particle physics, Angular distribution

[1] T. Gutsche et al., Rare baryon decays [4] Y.-m. Wang, Y. Li and C.-D. Lu, Rare decays of b ! [22] M. Galanti et al., Heavy baryons as polarimeters at colliders, JHEP 11 (2015) 067 [41] W. Altmannshofer and D.M. Straub, New physics in b ! s transitions after LHC run 1, Eur.

Phys. J. C 75 (2015) 382 [arXiv:1411.3161] [INSPIRE]. [42] S. Descotes-Genon, L. Hofer, J. Matias and J. Virto, Global analysis of b ! s`` anomalies, [43] T. Hurth, F. Mahmoudi and S. Neshatpour, On the anomalies in the latest LHCb data, Nucl.

Phys. B 909 (2016) 737 [arXiv:1603.00865] [INSPIRE]. [44] T. Feldmann and M.W.Y. Yip, Form factors for Lambdab ! Transitions in SCET, Phys.

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