17-22 July 2016
Master Cutlers Hall
Europe/London timezone

New method for setting a bound on the product from 14.4 keV solar axions

21 Jul 2016, 16:30
20m
Venue: Cutlers' Banqueting Hall (First Floor); Chair: Igor Irastorza; Session Manager: Jost Migenda ()

Venue: Cutlers' Banqueting Hall (First Floor); Chair: Igor Irastorza; Session Manager: Jost Migenda

Speaker

Prof. Richard Creswick (University of South Carolina)

Description

Axions coupled to quarks can be produced in the solar core by the decay of thermally excited nuclear states. Here we consider 14.4 keV axions from Fe-56 detected by coherent Bragg-Primakoff conversion to x-rays in crystals. The locus of points that satisfy the Bragg condition lie on a set of circles, one for each reciprocal vector, on the celestial sphere, and as the path of the Sun crosses one of these circles conversion of axions to x-rays is possible. The time over which the Bragg condition is satisfied is determined by the angular size of the solar core, and is on the order of a minute. The unique timing of events effectively increases the signal to background ratio by a factor of 1000 or more. We expect that and accurately oriented detector like CUORE operating for one year could set a bound $g_{an}g_{a\gamma\gamma}<10^{-18}\text{GeV}^{-1}$ .

Primary author

Prof. Richard Creswick (University of South Carolina)

Co-authors

Dr. Dawei Li (University of South Carolina) Prof. Frank Avignone (University of South Carolina)

Presentation Materials

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