activity
19972010
most citedNew Measurement of the Cosmic-Ray Positron Fraction from 5 to 15 GeV

219 citations · 478 across the 8 of their papers we have counts for

collaborators
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5 papers · 1 filter

astro-ph2005

Probing Dark Energy via Weak Gravitational Lensing with the SuperNova Acceleration Probe (SNAP)

SNAP Collaboration

SNAP is a candidate for the Joint Dark Energy Mission (JDEM) that seeks to place constraints on the dark energy using two distinct methods. The first, Type Ia SN, is discussed in a…

astro-ph2004★ 219 cited

New Measurement of the Cosmic-Ray Positron Fraction from 5 to 15 GeV

J. J. Beatty, A. Bhattacharyya, C. Bower +12

We present a new measurement of the cosmic-ray positron fraction at energies between 5 and 15 GeV with the balloon-borne HEAT-pbar instrument in the spring of 2000. The data presen…

astro-ph2002★ 2 cited

SNAP Near Infrared Detectors

G. Tarle

The SuperNova/Acceleration Probe (SNAP) will measure precisely the cosmological expansion history over both the acceleration and deceleration epochs and thereby constrain the natur…

astro-ph2001★ 81 cited

Measurement of the Cosmic-Ray Antiproton to Proton Abundance Ratio between 4 and 50 GeV

A. S. Beach, J. J. Beatty, A. Bhattacharyya +13

We present a new measurement of the antiproton to proton abundance ratio, pbar/p, in the cosmic radiation. The HEAT-pbar instrument, a balloon borne magnet spectrometer with precis…

astro-ph1997★ 113 cited

The Energy Spectra and Relative Abundances of Electrons and Positrons in the Galactic Cosmic Radiation

S. W. Barwick, J. J. Beatty, C. R. Bower +17

Observations of cosmic-ray electrons and positrons have been made with a new balloon-borne detector, HEAT (the "High-Energy Antimatter Telescope"), first flown in 1994 May from For…