Publications (28)
First observation with global network of optical atomic clocks aimed for a dark matter detection
P. WcisÅo, P. Ablewski, K. Beloy +19
We report on the first earth-scale quantum sensor network based on optical atomic clocks aimed at dark matter (DM) detection. Exploiting differences in the susceptibilities to the…
Acrylic Target Vessels for a High-Precision Measurement of theta13 with the Daya Bay Antineutrino Detectors
H. R. Band, R. Brown, J. Cherwinka +22
This paper describes in detail the acrylic target vessels used to encapsulate the target and gamma catcher regions in the Daya Bay experiment's first pair of antineutrino detectors…
Effective radius of ground- and excited-state positronium in collisions with hard walls
R. Brown, Q. Prigent, A. R. Swann +1
We determine effective collisional radii of positronium (Ps) by considering Ps states in hard-wall spherical cavities. -spline basis sets of electron and positron states inside…
Terrestrial Planet Finder Coronagraph (TPF-C) Flight Baseline Concept
Marie Levine, D. Lisman, S. Shaklan +52
The Terrestrial Planet Finder Coronagraph (TPF-C) mission presented here is an existence proof for a flagship-class internal coronagraph space mission capable of detecting and char…
Cubical abelian groups with connections are equivalent to chain complexes
R. Brown, Philip J. Higgins
The theorem of the title is deduced from the equivalence between crossed complexes and cubical -groupoids with connections proved by the authors in 1981. In fact we prove the e…
Homotopies and automorphisms of crossed modules of groupoids
R. Brown, I. Icen
We give a detailed description of the structure of the actor 2-crossed module related to the automorphisms of a crossed module of groupoids. This generalises work of Brown and Gilb…