Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/71574
Type: Artigo de periódico
Title: SEARCH FOR 100 TEV GAMMA-RAY EMISSION FROM THE GALACTIC DISK
Author: AGLIETTA, M
ALESSANDRO, B
ARNEODO, F
BERGAMASCO, L
FAUTH, AC
CASTAGNOLI, C
CASTELLINA, A
CATTADORI, C
CHIAVASSA, A
CINI, G
PIAZZOLI, BD
FULGIONE, W
GALEOTTI, P
GHIA, PL
MANNOCCHI, G
MORELLO, C
NAVARRA, G
RICCATI, L
SAAVEDRA, O
TRINCHERO, GC
VALLANIA, P
VERNETTO, S
Abstract: A search for UHE (greater-than-or-equal-to 100 TeV) diffuse gamma-ray emission from the Galactic disk has been carried out, through the excess in the cosmic-ray counting rate, by means of the EAS-TOP extensive air shower array at the Gran Sasso Laboratories. Measurements are performed from angular scales /b/ almost-equal-to 2-degrees (as in 100 MeV satellite experiments, and as expected from CR interactions with the ISM) to /b/ almost-equal-to 100. The obtained upper limits (90% c.l.) to the gamma-ray excess over the cosmic-ray flux from the Galactic disk region are I(gamma)/I(p) < 0.2% for /b/ < 2-degrees, I(gamma)/I(p) < 0.04% for /b/ < 5-degrees, and I(gamma)/I(p) < 0.02% for /b/ < 12-degrees at E0 > 130 TeV, corresponding to upper limits to the flux of I(gamma) < 3.2 x 10(-13) cm-2 s-1 rad-1, I(gamma) < 2.8 x 10(-13) cm-2 s- 1 rad-1, and I(gamma) < 4 x 10(-13) cm-2 S-1 rad-1.
Subject: COSMIC RAYS
GAMMA-RAYS, OBSERVATIONS
Country: Inglaterra
Editor: Iop Publishing Ltd
Rights: aberto
Identifier DOI: 10.1086/171773
Date Issue: 1992
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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