Improved analysis framework for axion dark matter searches

被引：10

作者：

Palken, D. A. ^{[1
,2
,3
]}

Brubaker, B. M. ^{[1
,2
,3
,4
]}

Malnou, M. ^{[1
,2
,3
]}

Al Kenany, S. ^{[5
]}

Backes, K. M. ^{[4
]}

Cahn, S. B. ^{[4
]}

Gurevich, Y., V ^{[4
]}

Lamoreaux, S. K. ^{[4
]}

Lewis, S. M. ^{[5
]}

Maruyama, R. H. ^{[4
]}

Rapidis, N. M. ^{[5
]}

Root, J. R. ^{[5
]}

Simanovskaia, M. ^{[5
]}

Shokair, T. M. ^{[5
]}

Singh, Sukhman ^{[4
]}

Speller, D. H. ^{[4
]}

Urdinaran, I ^{[5
]}

van Bibber, K. ^{[5
]}

Zhong, L. ^{[4
]}

Lehnert, K. W. ^{[1
,2
,3
]}

机构：

[1] NIST, JILA, Boulder, CO 80309 USA

[2] Univ Colorado, Boulder, CO 80309 USA

[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[4] Yale Univ, Dept Phys, New Haven, CT 06511 USA

[5] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW D | 2020年 / 101卷 / 12期

基金：

美国国家科学基金会;

关键词：

CP CONSERVATION; COSMIC AXIONS; CONSTRAINTS; DENSITY; LIMITS;

D O I：

10.1103/PhysRevD.101.123011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In experiments searching for axionic dark matter, the use of the standard threshold-based data analysis discards valuable information. We present a Bayesian analysis framework that builds on an existing processing protocol [B. M. Brubaker, L. Thong, S. K. Lamorcaux, K. W. Lehnert, and K. A. van Bibber, Phys. Rev. D 96, 123008 (2017)] to extract more information from the data of coherent axion detectors such as operating haloscopes. The analysis avoids logical subtleties that accompany the standard analysis framework and enables greater experimental flexibility on future data runs. Performing this analysis on the existing data from the HAYSTAC experiment, we find improved constraints on the axion-photon coupling g(gamma) while also identifying the most promising regions of parameter space within the 23.15-24.0 mu eV mass range. A comparison with the standard threshold analysis suggests a 36% improvement in scan rate from our analysis, demonstrating the utility of this framework for future axion haloscope analyses.

引用

页数：22

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