# IDM2016

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 ()

### 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

 Slides
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