Abstract
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 parameter for the decay of accelerated kaons into two pions decreases very slightly as very high accelerations are achieved, implying decreased asymmetry between matter and antimatter in this regime. We discuss the relationship between these results and cosmological processes surrounding matter-antimatter asymmetry and argue that, due to the connection between non-inertial and thermal phenomena established by the Unruh effect, this kind of computation may prove useful in furthering the understanding of thermodynamical effects in curved spacetimes.
Highlights
JHEP03(2021)285 be too small to account for matter-antimatter asymmetry, but additional sources of CP v could arise from some still unknown physics beyond the SM
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 discuss the relationship between these results and cosmological processes surrounding matter-antimatter asymmetry and argue that, due to the connection between non-inertial and thermal phenomena established by the Unruh effect, this kind of computation may prove useful in furthering the understanding of thermodynamical effects in curved spacetimes
Summary
JHEP03(2021)285 be too small to account for matter-antimatter asymmetry, but additional sources of CP v could arise from some still unknown physics beyond the SM. Expect that the acceleration would causes a modification of particle lifetimes with respect to their own proper time, i.e., in their accelerated rest frame, much as a thermal bath would do to a particle in an inertial frame This is the case — as was shown by Müller [10] and Vanzella and Matsas [11, 12] in their investigation of the decay rates of accelerated particles — and the objective of this paper is to investigate the impact of these non-inertial effects on CP -violating observables, i.e., we are interested in the non-inertial factor of the following heuristic equation, CP v = (imbalance) × (non-inertial modification). We argue that investigations of mechanical phenomena such as the ones alluded above can play an important role in understanding thermodynamical effects, given this connection
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