Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Matter-Antimatter Asymmetry Induced by a Running Vacuum Coupling   We show that a CP-violating interaction induced by a derivative coupling
between the running vacuum and a non-conserving baryon current may dynamically
break CPT and trigger baryogenesis through an effective chemical potential. By
assuming a non-singular class of running vacuum cosmologies which provides a
complete cosmic history (from an early inflationary de Sitter stage to the
present day quasi-de Sitter acceleration), it is found that an acceptable
baryon asymmetry is generated for many different choices of the model
parameters. It is interesting that the same ingredient (running vacuum energy
density) addresses several open cosmological questions/problems: avoids the
initial singularity, provides a smooth exit for primordial inflation,
alleviates both the coincidence and the cosmological constant problems, and,
finally, is also capable of explaining the generation of matter-antimatter
asymmetry in the very early Universe.

27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph