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Diffractive cross sections at low Q2 from ZEUS

โœ Scribed by Masahide Inuzuka

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
205 KB
Volume
79
Category
Article
ISSN
0920-5632

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โœฆ Synopsis

The diffractive cross section do',r,p_.,xy/dMx in the mass range 3.0 < Mx < 12.2 GeV and My < 6.0 GeV has been measured at low Q2 0.22 < Q2 < 0.70 GeV ~, by detecting the scattered electron with the ZEUS Beam Pipe Calorimeter. From the W dependence of the diffractive cross section, the effective intercept of Pomeron trajectory is extracted and compared with the values measured in other Q2 ranges. It is also compared with the value obtained from the W dependence of the 7*P total cross section in the same Q2 range.

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โœ R. Pawlak ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 262 KB

Neutral-current and charged-current deep inelastic scattering has been studied using 47.7 pb -1 of e+p data and 6.3 pb -1 of e-p data, collected by the ZEUS experiment in 1994-99. Differential cross sections for high Q2 scattering (Q2 > 400 GeV ~ for e+p NC, Q2 > 200 GeV 2 for e+p CC and Q2 > 1000 G