Searching for Dark Matter Axions beyond ADMX Phase II

Gianpaolo Carosi; S.J. Asztalos; C. Hagmann; D. Kinion; K. van Bibber; J. Hoskins; J. Hwang; C. Martin; P. Sikivie; I. Stern; N.S. Sullivan; D.B. Tanner; C. Boutan; M. Hotz; D. Lyapustin; L.J. Rosenberg; G. Rybka; A. Wagner; R. Bradley; J. Clarke

Searching for Dark Matter Axions beyond ADMX Phase II

ORAL

Abstract

The next-generation Axion Dark Matter Experiment (ADMX) is currently under construction and will have sensitivity to even pessimistic axion-photon couplings for dark matter axions with masses $<8\;\mu$eV (or $m_a c^2 < 2$ GHz). In order to extend the detection range to higher masses (8--100 $\mu$eV) new technologies must be developed. Here I will discuss the required detector research including development of higher frequency cavity and amplifier systems that can operate near the quantum limit in the 2--25 GHz region, thus allowing for a definitive dark matter axion search at these masses.

^*Supported by DOE Grants DE-FG02-97ER41029, DE- FG02-96ER40956, DE-AC52-07NA27344, and DE- AC03-76SF00098, and the Livermore LDRD program.

March 31, 2012, 4:30 PM – March 31, 2012, 4:42 PM

Authors

Gianpaolo Carosi
- Lawrence Livermore National Laboratory
S.J. Asztalos
- Lawrence Livermore National Laboratory
C. Hagmann
- Lawrence Livermore National Laboratory
D. Kinion
- Lawrence Livermore National Laboratory
K. van Bibber
- Naval Postgraduate School
J. Hoskins
- U. of Florida
J. Hwang
- U. of Florida
C. Martin
- U. of Florida
P. Sikivie
- U. of Florida
I. Stern
- U. of Florida
N.S. Sullivan
- U. of Florida
D.B. Tanner
- U. of Florida
C. Boutan
- U. of Washington
M. Hotz
- U. of Washington
D. Lyapustin
- U. of Washington
L.J. Rosenberg
- U. of Washington
G. Rybka
- U. of Washington
A. Wagner
- U. of Washington
R. Bradley
- National Radio Astronomy Observatory
J. Clarke
- U. of California, Berkeley