27 citations · 45 across the 10 of their papers we have counts for
11 papers
An Improved Torsion Balance Test of the Equivalence Principle Towards the Sun
M. P. Ross, E. A. Shaw, C. Gettings +3
We search for violations of the Equivalence Principle towards the Sun using a rotating torsion balance apparatus. We set 95\%-confidence limits on violations with beryllium and alu…
A Search for Ultra-Light Vector Dark Matter with a Rotating Torsion Balance
M. P. Ross, E. A. Shaw, C. Gettings +3
We search for ultra-light vector dark matter interacting with a rotating torsion balance with a baryon minus lepton number composition dipole. Our search spans candidate masses in…
Probing For Non-Gravitational Galactic-Range Dark Matter Interactions
M. P. Ross, S. K. Apple, E. A. Shaw +3
Dark matter remains a mystery in fundamental physics. The only evidence for dark matter's existence is from gravitational interactions. We operated a precision torsion balance expe…
Test of the Equivalence Principle for Superconductors
M. P. Ross, S. M. Fleischer, I. A. Paulson +9
We searched for violations of the weak equivalence principle using a cryogenic torsion balance with a pendulum comprised of superconducting niobium and copper. We constrain the Eöt…
A Vacuum-Compatible Cylindrical Inertial Rotation Sensor with Picoradian Sensitivity
M. P. Ross, J. van Dongen, Y. Huang +15
We describe an inertial rotation sensor with a 30-cm cylindrical proof-mass suspended from a pair of 14-m thick BeCu flexures. The angle between the proof-mass and support struc…
A Pseudo Plane-wave Gravitational Calibrator for Gravitational Wave Observatories
M. P. Ross, J. H. Gundlach, E. G. Adelberger +8
The precisions of existing gravitational calibrators for gravitational wave observatories are limited by their dependence on the relative position between the calibrators and the o…
A Cryogenic Torsion Balance Using a Liquid-Cryogen Free, Ultra-Low Vibration Cryostat
S. M. Fleischer, M. P. Ross, K. Venkateswara +5
We describe a liquid-cryogen free cryostat with ultra-low vibration levels which allows for continuous operation of a torsion balance at cryogenic temperatures. The apparatus uses…
A torsion-balance search for ultra low-mass bosonic dark matter
E. A. Shaw, M. P. Ross, C. A. Hagedorn +2
We used a stationary torsion balance with a beryllium-aluminum composition dipole to search for ultra low-mass bosonic dark matter coupled to baryon minus lepton number. We set 95%…
Initial Results from the LIGO Newtonian Calibrator
Michael P. Ross, Timesh Mistry, Laurence Datrier +16
The precise calibration of the strain readout of the LIGO gravitational wave observatories is paramount to the accurate interpretation of gravitational wave events. This calibratio…
A Low-Frequency Torsion Pendulum with Interferometric Readout
M. P. Ross, K. Venkateswara, C. A. Hagedorn +6
We describe a torsion pendulum with a large mass-quadrupole moment and a resonant frequency of 2.8 mHz, whose angle is measured using a modified Michelson interferometer. The syste…
Limits on the Stochastic Gravitational Wave Background and Prospects for Single Source Detection with GRACE Follow-On
M. P. Ross, C. A. Hagedorn, E. A. Shaw +5
With a reinterpretation of recent results, the GRACE Follow-On mission can be applied to gravitational wave astronomy. Existing GRACE Follow-On data constrain the stochastic gravit…