2012/09/30 by Anirban Kundu, Soumitra Nandi, Sunando Kumar Patra +1 · 1 citation
Mathematics · Physics and Astronomy · #B meson #CP violation #Collider #Hadron #Mathematics #Meson #Mixing (physics) #Neutrino Physics Research #Noncommutative and Quantum Gravity Theories #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Sign (mathematics) #Standard Model (mathematical formulation) #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.87.016005
v2: Discussions about LHCb reach added, final version to be published in Phys. Rev. D
arxiv created 2013/01/04 · openalex publication_date 2013/01/09 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We discuss some possible signals of CPT violation in the Bs system that may be probed at the Large Hadron Collider. We show how one can construct combinations of observables coming from tagged and untagged decay rates of Bs\ensuremath→Ds^\ifmmode±\else\textpm\fiK^\ensuremath∓ that can unambiguously differentiate between CPT violating and CPT conserving new physics models contributing in Bs0\ensuremath-Bs0 mixing. We choose this particular mode as an illustrative example for two reasons: (i) In the Standard Model, there is only one decay amplitude, so it is easier to untangle any new physics; (ii) Bs being a neutral meson, it is possible to unambiguously identify any sign of CPT violation that occurs only in mixing but not in decay. We define an observable which is useful to extract the CPT violating parameter in Bs decay, and also discuss how far the results are applicable even if CPT violation is present in both mixing and decay.