scholarly journals Testing discrete symmetries with neutral kaons at KLOE-2

2019 ◽  
Author(s):  
Antonio Di Domenico ◽  
Keyword(s):  
Discrete Symmetries ◽  
Neutral Kaons

scholarly journals Recent results on Kaon Physics at KLOE-2

2019 ◽  
Vol 212 ◽  
pp. 09001 ◽  
Author(s):  
Alessandro Di Cicco
Keyword(s):  
Discrete Symmetries ◽  
Charge Asymmetry ◽  
Kaon Physics ◽  
Neutral Kaon ◽  
Meson Mass ◽  
Physics Program ◽  
Neutral Kaons ◽  
Electron Positron ◽  
The Status ◽  
Positron Collisions

KLOE-2 extends the physics program of the forerunner KLOE experiment, especially in the field of discrete symmetries tests with neutral kaons. KLOE and KLOE-2 have collected together the largest sample of electron-positron collisions at an energy equal to the φ-meson mass, corresponding to about 2.4×1010 produced φ mesons. The latest results on neutral kaon physics at KLOE will be reviewed, together with the status and prospects of the analyses of KLOE-2 data. A new measurement of the charge asymmetry in KS semileptonic decays with 1.7 fb−1 of KLOE data, which improves the sensitivity of previous measurements of about a factor two, will be presented. Furthermore, the status of the analysis devoted to directly test T and CPT symmetries in neutral kaons transitions, as well as the search of the pure CP-violating KS → 3π0 decay using part of the recently acquired KLOE-2 dataset, will be presented.

scholarly journals Decoherence and discrete symmetries in deformed relativistic kinematics

2018 ◽  
Vol 166 ◽  
pp. 00008
Author(s):  
Michele Arzano
Keyword(s):  
Black Hole ◽  
Quantum Gravity ◽  
Time Evolution ◽  
Discrete Symmetries ◽  
Quantum Systems ◽  
Precision Measurements ◽  
Relativistic Kinematics ◽  
Quantum Time ◽  
Neutral Kaons ◽  
Gravity Effects

Models of deformed Poincaré symmetries based on group valued momenta have long been studied as effective modifications of relativistic kinematics possibly capturing quantum gravity effects. In this contribution we show how they naturally lead to a generalized quantum time evolution of the type proposed to model fundamental decoherence for quantum systems in the presence of an evaporating black hole. The same structures which determine such generalized evolution also lead to a modification of the action of discrete symmetries and of the CPT operator. These features can in principle be used to put phenomenological constraints on models of deformed relativistic symmetries using precision measurements of neutral kaons.

Sign in / Sign up

Export Citation Format

Share Document