Eta decay and muonic puzzles

doi:https://doi.org/10.1016/j.nuclphysb.2019.114638

Title: Eta decay and muonic puzzles

Abstract

New physics motivated by muonic puzzles (proton radius and muon g - 2 discrepancies) is studied. Using a light scalar boson Φ, assuming Yukawa interactions, accounts for these muonic puzzles simultaneously. Our previous work limits the existence of such a scalar boson's mass m _Φ from about 160 keV to 60 MeV. We improve this result by including the influence of all of the possible particles that couple to the Φ in computing the decay rate. Doing this involves including the strong interaction physics, involving quarks, necessary to compute the ηπΦ vertex function. The Nambu-Jona-Lasinio model, which accounts for the spontaneous symmetry breaking that yields the constituent mass is employed to represent the relevant strong-interaction physics. We use the ηπΦ vertex function to reanalyze the electron beam dump experiments. The result is that the allowed range of m _Φ lies between about 160 keV and 3.5 MeV. This narrow range represents an inviting target for ruling out or discovering this scalar boson. A possible UV completion of our phenomenological model is discussed.

Authors:

^[1]; Cloët, Ian C. ^[2]; Miller, Gerald A. ^[3]

Shanghai Jiao Tong Univ. (China)
Argonne National Lab. (ANL), Argonne, IL (United States)
Univ. of Washington, Seattle, WA (United States)

Publication Date:: 2019-05-16

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP); Science and Technology Commission of Shanghai Municipality; National Natural Science Foundation of China (NNSFC)

OSTI Identifier:: 1571644

Grant/Contract Number:: AC02-06CH11357; FG02-97ER41014

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Nuclear Physics. B

Additional Journal Information:: Journal Volume: 944; Journal Issue: C; Journal ID: ISSN 0550-3213

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Liu, Yu-Sheng, Cloët, Ian C., and Miller, Gerald A. Eta decay and muonic puzzles.  United States: N. p., 2019. 
        Web.  doi:10.1016/j.nuclphysb.2019.114638.

Copy to clipboard


                    Liu, Yu-Sheng, Cloët, Ian C., & Miller, Gerald A. Eta decay and muonic puzzles.  United States.  https://doi.org/10.1016/j.nuclphysb.2019.114638

Copy to clipboard


                    Liu, Yu-Sheng, Cloët, Ian C., and Miller, Gerald A. Thu .  
        "Eta decay and muonic puzzles".  United States.  https://doi.org/10.1016/j.nuclphysb.2019.114638.  https://www.osti.gov/servlets/purl/1571644.

Copy to clipboard


                    
@article{osti_1571644,

  title        = {Eta decay and muonic puzzles},

  author       = {Liu, Yu-Sheng and Cloët, Ian C. and Miller, Gerald A.},

  abstractNote = {New physics motivated by muonic puzzles (proton radius and muon g - 2 discrepancies) is studied. Using a light scalar boson Φ, assuming Yukawa interactions, accounts for these muonic puzzles simultaneously. Our previous work limits the existence of such a scalar boson's mass mΦ from about 160 keV to 60 MeV. We improve this result by including the influence of all of the possible particles that couple to the Φ in computing the decay rate. Doing this involves including the strong interaction physics, involving quarks, necessary to compute the ηπΦ vertex function. The Nambu-Jona-Lasinio model, which accounts for the spontaneous symmetry breaking that yields the constituent mass is employed to represent the relevant strong-interaction physics. We use the ηπΦ vertex function to reanalyze the electron beam dump experiments. The result is that the allowed range of mΦ lies between about 160 keV and 3.5 MeV. This narrow range represents an inviting target for ruling out or discovering this scalar boson. A possible UV completion of our phenomenological model is discussed.},

  doi          = {10.1016/j.nuclphysb.2019.114638},

  url          = {https://www.osti.gov/biblio/1571644},
  journal      = {Nuclear Physics. B},

  issn         = {0550-3213},

  number       = C,

  volume       = 944,

  place        = {United States},

  year         = {2019},

  month        = {5}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1016/j.nuclphysb.2019.114638

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 1 work

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referencing / citing this record:

Probing light dark matter with a hadrophilic scalar mediator
journal, November 2019

Batell, Brian; Freitas, Ayres; Ismail, Ahmed
Physical Review D, Vol. 100, Issue 9
https://doi.org/10.1103/physrevd.100.095020

Similar records in OSTI.GOV collections:

A solution to the rho-. pi. puzzle: Spontaneously broken symmetries of the quark model

Journal Article Caldi, D G ; Pagels, H - Phys. Rev., D; (United States)

This article proposes a solution to the long-standing rho-..pi.. puzzle: How can the rho and ..pi.. be members of a quark model U(6) 36 and the ..pi.. be a Nambu-Goldstone boson satisfying partial conservation of the axial-vector current (PCAC) Our solution to the puzzle requires a revision of conventional concepts regarding the vector mesons rho, ..omega.., K*, and phi. Just as the ..pi.. is a Goldstone state, a collective excitation of the Nambu--Jona-Lasinio type, transforming as a member of the (3, 3) + (3, 3) representation of the chiral SU(3) x SU(3) group, so also the rho transforms like (3,more »« less
https://doi.org/10.1103/PhysRevD.14.809
Generalized Nambu--Jona-Lasinio model in a study of the boson-exchange model of nuclear forces

Journal Article Shakin, C M ; Sun, W ; Szweda, J - Physical Review, C

In this paper we discuss the role of chiral symmetry in the description of the nucleon-nucleon interaction. We make use of a generalized Nambu--Jona-Lasinio model which exhibits chiral symmetry at the quark level and demonstrate how the various components of the boson-exchange model of the nucleon-nucleon interaction arise in this model. In this paper we make use of our recent analysis of correlated two-pion exchange. We have found that when correlated two-pion exchange is represented by an effective low-mass sigma meson, that meson may be seen to be the chiral partner of the pion. (That result pertains if the mesonmore »« less
https://doi.org/10.1103/PhysRevC.52.3353
Unified model of the Nambu--Jona-Lasinio type for all elementary-particle forces

Journal Article Terazawa, H ; Chikashige, Y ; Akama, K - Phys. Rev., D; (United States)

The unified model for all elementary-particle forces recently proposed by us is discussed in detail. Starting with a nonlinear fermion Lagrangian of the Nambu--Jona-Lasinio type and imposing the massless conditions of Bjorken on vector fields, we construct an effective Lagrangian which combines the unified gauge theory of Weinberg and Salam for the weak and electromagnetic interactions of leptons and quarks and the asymptotically free gauge theory of Gross, Wilczek, and Politzer for the strong interaction of quarks. The photon, weak vector bosons, and Higgs scalars appear as composites of lepton-antilepton or quark-antiquark pairs, while the color-octet gluons appear as compositesmore »« less
https://doi.org/10.1103/PhysRevD.15.480
Strong U{sub A}(1) breaking in radiative {eta} decays and baryon systems

Journal Article Takizawa, M ; Nemoto, Y ; Oka, M - Physical Review, D

We study the {eta}{r_arrow}{gamma}{gamma}, {eta}{r_arrow}{gamma}{mu}{sup {minus}}{mu}{sup +}, and {eta}{r_arrow}{pi}{sup 0}{gamma}{gamma} decays using an extended three-flavor Nambu{endash}Jona-Lasinio model that includes the `t Hooft instanton induced interaction. We find that the {eta}-meson mass, the {eta}{r_arrow}{gamma}{gamma}, {eta}{r_arrow}{gamma}{mu}{sup {minus}}{mu}{sup +}, and {eta}{r_arrow}{pi}{sup 0}{gamma}{gamma} decay widths are in good agreement with the experimental values when the U{sub A}(1) breaking is strong and the flavor SU(3) singlet-octet mixing angle {theta} is about zero. The calculated {eta}{gamma}{gamma}{sup {asterisk}} transition form factor has a somewhat weaker dependence on the squared four-momentum of the virtual photon. The effects of the U{sub A}(1) anomaly on the scalar quark contents inmore »« less
https://doi.org/10.1103/PhysRevD.55.4083
Mesons and diquarks in the color neutral superconducting phase of dense cold quark matter

Journal Article Ebert, D ; Klimenko, K G ; Yudichev, V L ; ... - Physical Review. D, Particles Fields

The spectrum of meson and diquark excitations of dense color neutral cold quark matter is investigated in the framework of a two-flavored Nambu-Jona-Lasinio-type model, including a quark {mu}- and color {mu}{sub 8}-chemical potential. It was found that, in the color superconducting (2SC) phase, i.e. at {mu}>{mu}{sub c}=342 MeV, {mu}{sub 8} acquires rather small values {approx}10 MeV in order to ensure the color neutrality. In this phase the {pi} and {sigma} meson masses are evaluated around {approx}330 MeV. The spectrum of scalar diquarks in the color neutral 2SC phase consists of a heavy [SU{sub c}(2)-singlet] resonance with mass {approx}1100 MeV, fourmore »« less
https://doi.org/10.1103/PhysRevD.72.056007

Similar Records

Title: Eta decay and muonic puzzles

Abstract

Citation Formats

Probing light dark matter with a hadrophilic scalar mediator journal, November 2019

Probing light dark matter with a hadrophilic scalar mediator
journal, November 2019