TY - JOUR
T1 - Implication of hidden sub-GeV bosons for the (g-2)μ, Be 8 - He 4 anomaly, proton charge radius, EDM of fermions, and dark axion portal
AU - Kirpichnikov, D. V.
AU - Lyubovitskij, Valery E.
AU - Zhevlakov, Alexey S.
N1 - Funding Information:
We would like to thank S. N. Gninenko, N. V. Krasnikov, and M. M. Kirsanov for many fruitful discussions. The work of V. E. L. was funded by “Verbundprojekt 05P2018—Ausbau von ALICE am LHC: Jets und partonische Struktur von Kernen” (Förderkennzeichen No. 05P18VTCA1), “Verbundprojekt 05A2017—CRESST-XENON: Direkte Suche nach Dunkler Materie mit XENON1T/nT und CRESST-III. Teilprojekt 1” (Förderkennzeichen 05A17VTA)”, the Carl Zeiss Foundation under Project Kepler Center für Astro- und Teilchenphysik: Hochsensitive Nachweistechnik zur Erforschung des unsichtbaren Universums (Gz: 0653-2.8/581/2) by ANID PIA/APOYO AFB180002 and by FONDECYT (Chile) under Grant No. 1191103, by the Tomsk State University Competitiveness Enhancement Program “Research of Modern Problems of Quantum Field Theory and Condensed Matter Physics” and Tomsk Polytechnic University Competitiveness Enhancement Program (Russia). The work of A. S.Zh. was supported by the Tomsk State University competitiveness improvement program.
Publisher Copyright:
© 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/11/24
Y1 - 2020/11/24
N2 - We discuss new physics phenomenology of hidden scalar (S), pseudoscalar (P), vector (V) and axial-vector (A) particles coupled to nucleons and leptons, which could give contributions to proton charge radius, (g-2)μ, Be8-He4 anomaly and electric dipole moment (EDM) of Standard Model (SM) particles. In particular, we estimate sensitivity of NA64μ experiment to observe muon missing energy events involving hidden scalar and vector particles. That analysis is based on geant4 Monte Carlo simulation of the signal process of muon scattering off target nuclei μN→μNS(V) followed by invisible boson decay into dark matter (DM) particles, S(V)→χχ. The existence of light sub-GeV bosons could possibly explain the muon (g-2) anomaly observed. We also summarize existing bounds on ATOMKI X17(JP=0-,1±) boson coupling with neutron, proton, and electron. We implement these constraints to estimate the contribution of P, V. and A particles to proton charge radius via direct 1-loop calculation of Sachs form factors. The analysis reveals the corresponding contribution is negligible. We also calculate bounds on dark axion portal couplings of dimension-five operators, which contribute to the EDMs of leptons and neutron.
AB - We discuss new physics phenomenology of hidden scalar (S), pseudoscalar (P), vector (V) and axial-vector (A) particles coupled to nucleons and leptons, which could give contributions to proton charge radius, (g-2)μ, Be8-He4 anomaly and electric dipole moment (EDM) of Standard Model (SM) particles. In particular, we estimate sensitivity of NA64μ experiment to observe muon missing energy events involving hidden scalar and vector particles. That analysis is based on geant4 Monte Carlo simulation of the signal process of muon scattering off target nuclei μN→μNS(V) followed by invisible boson decay into dark matter (DM) particles, S(V)→χχ. The existence of light sub-GeV bosons could possibly explain the muon (g-2) anomaly observed. We also summarize existing bounds on ATOMKI X17(JP=0-,1±) boson coupling with neutron, proton, and electron. We implement these constraints to estimate the contribution of P, V. and A particles to proton charge radius via direct 1-loop calculation of Sachs form factors. The analysis reveals the corresponding contribution is negligible. We also calculate bounds on dark axion portal couplings of dimension-five operators, which contribute to the EDMs of leptons and neutron.
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U2 - 10.1103/PhysRevD.102.095024
DO - 10.1103/PhysRevD.102.095024
M3 - Article
AN - SCOPUS:85097132068
VL - 102
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 9
M1 - 095024
ER -