Galyaev, N.A.
DN/DT
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Measurement of the t distribution in diffractive photoproduction at HERA.

The ZEUS collaboration Breitweg, J. ; Derrick, M. ; Krakauer, D. ; et al.
Eur.Phys.J.C 2 (1998) 237-246, 1998.
Inspire Record 452355 DOI 10.17182/hepdata.44323

Photon diffractive dissociation, $\gamma p \to Xp$, has been studied at HERA with the ZEUS detector using $ep$ interactions where the virtuality $Q^2$ of the exchanged photon is smaller than 0.02 GeV$^2$. The squared four-momentum $t$ exchanged at the proton vertex was determined in the range $0.073<|t|<0.40$ GeV$^2$ by measuring the scattered proton in the ZEUS Leading Proton Spectrometer. In the photon-proton centre-of-mass energy interval $176

2 data tables
Table 1

T is the squared four momentum transfer at the proton vertex.

Table 2

SLOPE of the DN/DT distribution.


Measurement of b, the Nuclear Slope Parameter of the p anti-p Elastic Scattering Distribution at s**(1/2) = 1800-GeV

The E710 collaboration Amos, N.A. ; Baker, W.F. ; Bertani, M. ; et al.
Phys.Rev.Lett. 61 (1988) 525, 1988.
Inspire Record 261411 DOI 10.17182/hepdata.20066

We have studied proton-antiproton elastic scattering at s=1800 GeV at the Fermilab Collider, in the range 0.02<|t|<0.13 (GeV/c)2. Fitting the distribution by exp(−B|t|), we obtain a value of B of 17.2±1.3 (GeV/c)−2.

2 data tables
Table 1

No description provided.

Table 2

Error contains estimate of systematic effects.