Constraints on the axion-electron coupling for solar axions produced by a Compton process and bremsstrahlung

Journal Article · Sat Jan 15 00:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.023505· OSTI ID:21503930

Derbin, A V; Kayunov, A S; Muratova, V V; Semenov, D A; Unzhakov, E V ^[1]

---

1. St. Petersburg Nuclear Physics Institute, Gatchina, 188300 (Russian Federation)

The search for solar axions produced by Compton ({gamma}+e{sup -}{yields}e{sup -}+A) and bremsstrahlunglike (e{sup -}+Z{yields}Z+e{sup -}+A) processes has been performed. The axion flux in both cases depends on the axion-electron coupling constant. The resonant excitation of the low-lying nuclear level of {sup 169}Tm was looked for: A+{sup 169}Tm{yields}{sup 169}Tm{sup *}{yields}{sup 169}Tm+{gamma} (8.41 keV). The Si(Li) detector and {sup 169}Tm target installed inside the low-background setup were used to detect 8.41 keV {gamma} rays. As a result, a new model-independent restriction on the axion-electron and the axion-nucleon couplings was obtained: g{sub Ae}x|g{sub AN}{sup 0}+g{sub AN}{sup 3}|{<=}2.1x10{sup -14}. In the model of the hadronic axion this restriction corresponds to the upper limit on the axion-electron coupling and on the axion mass g{sub Ae}xm{sub A{<=}}3.1x10{sup -7} eV (90% C.L.). The limits on the axion mass are m{sub A{<=}}105 eV and m{sub A{<=}}1.3 keV for the Dine-Fischler-Srednicki-Zhitnitskii- and Kim-Shifman-Vainstein-Zakharov-axion models, correspondingly (90% C.L.).

• OSTI ID: 21503930
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 2; Other Information: DOI: 10.1103/PhysRevD.83.023505; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ATOM-ATOM COLLISIONS
AXIONS
BREMSSTRAHLUNG
COMPTON EFFECT
COUPLING
COUPLING CONSTANTS
ENERGY LEVELS
EV RANGE
EXCITATION
GAMMA RADIATION
LI-DRIFTED SI DETECTORS
MASS
NUCLEONS
PARTICLE DECAY
PHOTON-ELECTRON INTERACTIONS
RESONANCE
THULIUM 169 TARGET
Z NEUTRAL BOSONS
ATOM COLLISIONS
BARYONS
BASIC INTERACTIONS
BOSONS
COLLISIONS
DECAY
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
FERMIONS
GOLDSTONE BOSONS
HADRONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
IONIZING RADIATIONS
LI-DRIFTED DETECTORS
MEASURING INSTRUMENTS
PARTICLE INTERACTIONS
PHOTON-LEPTON INTERACTIONS
POSTULATED PARTICLES
RADIATION DETECTORS
RADIATIONS
SCATTERING
SEMICONDUCTOR DETECTORS
SI SEMICONDUCTOR DETECTORS
TARGETS