Double-tag events study with the L3 detector at root s=189 GeV

Authors
Achard, P
Citation
P. Achard, Double-tag events study with the L3 detector at root s=189 GeV, NUCL PH B-P, 82, 2000, pp. 61-66
Citations number
33
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
09205632 → ACNP
Volume
82
Year of publication
2000
Pages
61 - 66
Database
ISI
SICI code
0920-5632(200003)82:<61:DESWTL>2.0.ZU;2-8
Abstract
A preliminary study of double tag events using the L3 detector at center of mass energy root s similar or equal to 189 GeV has been performed. The cro ss-section of gamma*gamma* collisions is measured at average [Q(2)] = 14.5 GeV2. The results are in agreement with predictions based on perturbative Q CD, while the Quark Parton Model alone is insufficient to describe the data . The measurements lie below the LO and above the NLO BFKL calculations.