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Some approaches to Quantum Gravity (QG) entail decoherence of quantum matter propagating in it, due to an ``environment'' of QG degrees of freedom inaccessible to low-energy observers. In the first part of this talk, I discuss potential,…

General Relativity and Quantum Cosmology · Physics 2025-08-14 Nick E. Mavromatos

We describe possible kaon physics goals to achieve with a high luminosity phi-factory. We motivate the relevance to improve the present bounds on CPT kaon physics quantities. Also, the interferometer machine phi-factory is useful to study…

High Energy Physics - Phenomenology · Physics 2007-05-23 Giancarlo D'Ambrosio

CP violation in the kaon system can manifest itself in decays to final states containing neutral kaons. The effect is governed by an efficiency function that reflects the specific experimental setup. We demonstrate that this efficiency…

High Energy Physics - Phenomenology · Physics 2025-09-10 Yuval Grossman , Paolo Leo , Alberto Martini , Guglielmo Papiri , Armine Rostomyan

The problem of indirect violation of discrete symmeties CP, T and CPT in a neutral meson system can be described using two complex parameters epsilon and delta, which are invariant under rephasing of meson and quark fields. For the Bd…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. C. Banuls

The neutral kaon system offers a unique possibility to perform fundamental tests of CPT invariance, as well as of the basic principles of quantum mechanics. The most recent and significant limits on CPT violation are reviewed, including the…

High Energy Physics - Experiment · Physics 2009-04-14 A. Di Domenico

The impact of earth's gravity on neutral mesons dynamics is analyzed. The main effect of a Newtonian potential is to couple the strangeness and bottomness oscillations with the quark zitterbewegung oscillations. This coupling is responsible…

High Energy Physics - Phenomenology · Physics 2025-03-13 Jean-Marcel Rax

We present an analysis of CPT violation in $B\to J/\psi K$ decays. A method of kaon regeneration is proposed to increase the $K_{S(L)}$ interference effects. With the time evolution of both neutral B and K mesons, we show that it is…

High Energy Physics - Phenomenology · Physics 2016-09-06 Zhengtao Wei

This work gives a general overview of phenomenology developed for neutral-meson searches for CPT violation in the framework of the Standard-Model Extension with focus on meson factories. It gives a comparison of notations and fundamental…

High Energy Physics - Phenomenology · Physics 2018-02-06 Agnes Roberts

The neutral-kaon system constitutes a fantastic and unique laboratory for the study of CPT symmetry and the basic principles of quantum mechanics, and a $\phi$-factory represents a unique opportunity to push forward these studies. The…

High Energy Physics - Phenomenology · Physics 2016-08-02 Antonio Di Domenico

The conclusions summarize the main, but not all, aspects of a two-days workshop held at MITP Mainz. The four covered aspects are T violation in decays of neutral B mesons, T and CPT studies in B0B0bar transitions with Belle, future…

High Energy Physics - Experiment · Physics 2014-01-28 K. R. Schubert , L. Li Gioi , A. J. Bevan , A. Di Domenico

After a brief history of the insights gained from Kaon physics, the potential of Kaon decays for probing lepton number violation is discussed. Present tests of CTP and of Quantum Mechanics in the neutral Kaon sector are then reviewed and…

High Energy Physics - Phenomenology · Physics 2009-09-25 R. D. Peccei

Considering that the existing experimental limit for $CPT$ violation is still poor, we explore various possible ways to test $CPT$ symmetry in $CP$-violating $B$ decays at $e^{+}e^{-}$ $B$ factories and hadron machines. We find that it is…

High Energy Physics - Phenomenology · Physics 2009-12-30 Zhi-zhong Xing

We use fits to recent published CPLEAR data on neutral kaon decays to $\pi^+\pi^-$ and $\pi e\nu$ to constrain the CPT--violation parameters appearing in a formulation of the neutral kaon system as an open quantum-mechanical system. The…

High Energy Physics - Experiment · Physics 2008-11-26 R. Adler , etal , J. Ellis , J. Lopez , N. Mavromatos , D. Nanopoulos

We present a general model-independent and rephase-invariant formalism that cleanly relates CP and CPT noninvariant observables to the fundamental parameters. Different types of CP and CPT violations in the K^0-, B^0-, B_s^0- and…

High Energy Physics - Phenomenology · Physics 2011-09-13 K. C. Chou , W. Palmer , E. A. Paschos , Y. L. Wu

If CP violation in the decays of neutral kaons is due to phases in the weak couplings of quarks, as encoded in the Cabibbo-Kobayashi-Maskawa (CKM) matrix, there are many other experimental consequences. Notable among these are CP-violating…

High Energy Physics - Phenomenology · Physics 2009-09-25 J. Rosner

Neutral kaons produced in the correlated pairs at the DAFNE phi-factory offer unique possibilities to perform fundamental tests of CPT invariance, as well as of the basic principles of quantum mechanics. The analysis of the data collected…

Nuclear Experiment · Physics 2013-08-28 Izabela Balwierz-Pytko

This paper is intended to provide a brief overview of the quantum-entangled production of neutral meson-antimeson pairs, and to highlight the first discovery of a clean physical CP-violating phase in coherent neutral-$B$ decays as a smoking…

High Energy Physics - Phenomenology · Physics 2025-08-19 Zhi-zhong Xing

We investigate non-inertial effects on $CP$-violating processes using a model, based on the framework of quantum field theory in curved spacetimes, devised to account for the decay of accelerated particles. We show that the $CP$ violation…

General Relativity and Quantum Cosmology · Physics 2021-04-13 V. M. G. Silveira , C. A. Z. Vasconcellos , E. G. S. Luna , D. Hadjimichef

If there is CPT violation, the nature of entanglement for neutral meson pairs produced in meson factories may, on general grounds, be affected. The new form of entanglement is the omega effect. Gravitational decoherence, due to space-time…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sarben Sarkar

We introduce a new effect in the neutrino oscillation phase which shows the neutrino-antineutrino oscillation is possible under gravity even if the rest masses of the corresponding eigenstates are same. This is due to CPT violation and…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Banibrata Mukhopadhyay