American Physical Society (APS)
Physical Review D
,  volume 110 ,  issue 1 ,  publication number 015024

ALP contribution to the strong CP problem

Publication type: Journal Article
Publication date: 2024-07-23
American Physical Society (APS)
scimago Q1
wos Q1
SJR: 1.458
CiteScore: 9.0
Impact factor: 5.3
ISSN: 24700010, 24700029, 05562821, 10894918, 15507998, 15502368
Abstract

We compute the one-loop contribution to the θ¯ parameter of an faxionlike particle (ALP) with CP-odd derivative couplings. Its contribution to the neutron electric dipole moment is shown to be orders of magnitude larger than that stemming from the one-loop ALP contributions to the up- and down-quark electric and chromoelectric dipole moments. This strongly improves existing bounds on ALP-fermion CP-odd interactions and also sets limits on previously unconstrained couplings. The case of a general singlet scalar is analyzed as well. In addition, we explore how the bounds are modified in the presence of a Peccei-Quinn symmetry.

Published by the American Physical Society 2024
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Enguita-Vileta V. et al. ALP contribution to the strong CP problem // Physical Review D. 2024. Vol. 110. No. 1. 015024
GOST all authors (up to 50) Copy
Enguita-Vileta V., Gavela B., Grinstein B., Quilez P. ALP contribution to the strong CP problem // Physical Review D. 2024. Vol. 110. No. 1. 015024
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RIS Copy
TY - JOUR
DO - 10.1103/physrevd.110.015024
UR - https://link.aps.org/doi/10.1103/PhysRevD.110.015024
TI - ALP contribution to the strong CP problem
T2 - Physical Review D
AU - Enguita-Vileta, Victor
AU - Gavela, Belen
AU - Grinstein, Benjamin
AU - Quilez, Pablo
PY - 2024
DA - 2024/07/23
PB - American Physical Society (APS)
IS - 1
VL - 110
SN - 2470-0010
SN - 2470-0029
SN - 0556-2821
SN - 1089-4918
SN - 1550-7998
SN - 1550-2368
ER -
BibTex
Cite this
BibTex (up to 50 authors) Copy
@article{2024_Enguita-Vileta,
author = {Victor Enguita-Vileta and Belen Gavela and Benjamin Grinstein and Pablo Quilez},
title = {ALP contribution to the strong CP problem},
journal = {Physical Review D},
year = {2024},
volume = {110},
publisher = {American Physical Society (APS)},
month = {jul},
url = {https://link.aps.org/doi/10.1103/PhysRevD.110.015024},
number = {1},
pages = {015024},
doi = {10.1103/physrevd.110.015024}
}
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