We revisit the flavor-changing processes involving an axion-like particle
(ALP) in the context of generic ALP effective lagrangian with a discussion of
possible UV completions providing the origin of the relevant bare ALP
couplings. We focus on the minimal scenario that ALP has flavor-conserving
couplings at tree level, and the leading flavor-changing couplings arise from
the loops involving the Yukawa couplings of the Standard Model fermions. We
note that such radiatively generated flavor-changing ALP couplings can be
easily suppressed in field theoretic ALP models with sensible UV completion. We
discuss also the implication of our result for string theoretic ALP originating
from higher-dimensional $p$-form gauge fields, for instance for ALP in large
volume string compactification scenario.
Beschreibung
Minimal Flavor Violation with Axion-like Particles
%0 Journal Article
%1 choi2017minimal
%A Choi, Kiwoon
%A Im, Sang Hui
%A Park, Chan Beom
%A Yun, Seokhoon
%D 2017
%K axions bsm flavour
%T Minimal Flavor Violation with Axion-like Particles
%U http://arxiv.org/abs/1708.00021
%X We revisit the flavor-changing processes involving an axion-like particle
(ALP) in the context of generic ALP effective lagrangian with a discussion of
possible UV completions providing the origin of the relevant bare ALP
couplings. We focus on the minimal scenario that ALP has flavor-conserving
couplings at tree level, and the leading flavor-changing couplings arise from
the loops involving the Yukawa couplings of the Standard Model fermions. We
note that such radiatively generated flavor-changing ALP couplings can be
easily suppressed in field theoretic ALP models with sensible UV completion. We
discuss also the implication of our result for string theoretic ALP originating
from higher-dimensional $p$-form gauge fields, for instance for ALP in large
volume string compactification scenario.
@article{choi2017minimal,
abstract = {We revisit the flavor-changing processes involving an axion-like particle
(ALP) in the context of generic ALP effective lagrangian with a discussion of
possible UV completions providing the origin of the relevant bare ALP
couplings. We focus on the minimal scenario that ALP has flavor-conserving
couplings at tree level, and the leading flavor-changing couplings arise from
the loops involving the Yukawa couplings of the Standard Model fermions. We
note that such radiatively generated flavor-changing ALP couplings can be
easily suppressed in field theoretic ALP models with sensible UV completion. We
discuss also the implication of our result for string theoretic ALP originating
from higher-dimensional $p$-form gauge fields, for instance for ALP in large
volume string compactification scenario.},
added-at = {2017-08-05T16:37:46.000+0200},
author = {Choi, Kiwoon and Im, Sang Hui and Park, Chan Beom and Yun, Seokhoon},
biburl = {https://www.bibsonomy.org/bibtex/21cd0d306ff27fd5b371d1ff72b09b7ab/vindex10},
description = {Minimal Flavor Violation with Axion-like Particles},
interhash = {b88c0b7e43ac0276a13b3b09f74f9a32},
intrahash = {1cd0d306ff27fd5b371d1ff72b09b7ab},
keywords = {axions bsm flavour},
note = {cite arxiv:1708.00021Comment: 39 pages, 3 figures},
timestamp = {2017-08-05T16:37:46.000+0200},
title = {Minimal Flavor Violation with Axion-like Particles},
url = {http://arxiv.org/abs/1708.00021},
year = 2017
}