Deep inelastic scattering with leading protons or large rapidity gaps at HERA

The ZEUS collaboration Chekanov, S. ; Derrick, M. ; Magill, S. ; et al.
Nucl.Phys.B 816 (2009) 1-61, 2009.
Inspire Record 804915 DOI 10.17182/hepdata.52860

The dissociation of virtual photons, $\gamma^{\star} p \to X p$, in events with a large rapidity gap between $X$ and the outgoing proton, as well as in events in which the leading proton was directly measured, has been studied with the ZEUS detector at HERA. The data cover photon virtualities $Q^2>2$ GeV$^2$ and $\gamma^{\star} p$ centre-of-mass energies $40<W<240$ GeV, with $M_X>2$ GeV, where $M_X$ is the mass of the hadronic final state, $X$. Leading protons were detected in the ZEUS leading proton spectrometer. The cross section is presented as a function of $t$, the squared four-momentum transfer at the proton vertex and $\Phi$, the azimuthal angle between the positron scattering plane and the proton scattering plane. It is also shown as a function of $Q^2$ and $\xpom$, the fraction of the proton's momentum carried by the diffractive exchange, as well as $\beta$, the Bjorken variable defined with respect to the diffractive exchange.

48 data tables

The differential cross section DSIG/DT for the LRG and the LPS data samples.

The fitted exponential slope of the T distribution as a function of X(NAME=POMERON).

The fitted exponential slope of the T distribution as a function of X(NAME=POMERON).

More…

ELASTIC SCATTERING OF pi- AND K- MESONS ON PROTONS AT 43-GeV/c MOMENTUM

The SIGMA-AYaKS & Dubna-Serpukhov-Tbilisi collaborations Antipov, Yu.M. ; Batarin, V.A. ; Bezzubov, V.A. ; et al.
Sov.J.Nucl.Phys. 48 (1988) 85, 1988.
Inspire Record 253399 DOI 10.17182/hepdata.38881

None

3 data tables

No description provided.

No description provided.

FROM EXPONENTIAL FIT OF D(SIG)/D(T) IN RANGE 0. < ABS(T) < 1. GEV.


pi- p ---> f2 (1270) n REACTION IN THE REGION t < 2.0-GeV/c**2 AT 40-GeV/c

Apokin, V.D. ; Arestov, Yu.I. ; Belikov, N.I. ; et al.
Sov.J.Nucl.Phys. 47 (1988) 1041, 1988.
Inspire Record 239548 DOI 10.17182/hepdata.40792

None

2 data tables

No description provided.

No description provided.


Quasielastic Charge Exchange of Negative Pions on Carbon Into $\pi^0$, $\eta$, $\eta^\prime$ (958), $\omega(783)$ and F2 (1270) Mesons at 39.1-{GeV}/$c$

Apokin, V.D. ; Arestov, Yu.I. ; Belikov, N.I. ; et al.
Sov.J.Nucl.Phys. 46 (1987) 644, 1987.
Inspire Record 239549 DOI 10.17182/hepdata.40865

None

7 data tables

No description provided.

No description provided.

No description provided.

More…

Measurement of differential cross sections for charge exchange of $\pi^{-}$ mesons in carbon at 40 GeV/c

Apokin, V.D. ; Vasiliev, A.N. ; Matulenko, Yu.A. ; et al.
Sov.J.Nucl.Phys. 36 (1982) 694-697, 1982.
Inspire Record 178549 DOI 10.17182/hepdata.10721

None

4 data tables

No description provided.

No description provided.

No description provided.

More…

PHOTOPRODUCTION OF RHO0 MESONS ON HYDROGEN AT GAMMA QUANTA ENERGIES OF 15-GEV - 30-GEV. (IN RUSSIAN)

Aleksandrov, Yu.A. ; Baranov, S.S. ; Belousov, A.S. ; et al.
Yad.Fiz. 32 (1980) 651-658, 1980.
Inspire Record 159787 DOI 10.17182/hepdata.18966

None

6 data tables

SIG OBTAINED FROM INTEGRATION OF D(SIG)/D(T).

No description provided.

No description provided.

More…

Inclusive Slow Proton and $\Delta^{++}$ (1236) Resonance Production in $\pi^+ p$ Interactions at 32-{GeV}/$c$

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Chliapnikov, P.V. ; et al.
Sov.J.Nucl.Phys. 31 (1980) 494, 1980.
Inspire Record 144016 DOI 10.17182/hepdata.18016

None

15 data tables

No description provided.

No description provided.

No description provided.

More…

Elastic Scattering and Charged Particle Multiplicity in 32-{GeV}/$c \pi^+ p$ Interactions

Azhinenko, I.V. ; Belokopytov, Yu.A. ; Bryzgalov, V.V. ; et al.
Sov.J.Nucl.Phys. 31 (1980) 337, 1980.
Inspire Record 144012 DOI 10.17182/hepdata.18936

None

4 data tables

No description provided.

No description provided.

No description provided.

More…

pi- Meson Elastic Scattering on Proton in the Coulomb-Nuclear Interference Region for Momentum Range from 33-GeV/c Up to 60-GeV/c

Apokin, V.D. ; Vasiliev, A.N. ; Derevshchikov, A.A. ; et al.
Sov.J.Nucl.Phys. 24 (1976) 49, 1976.
Inspire Record 99591 DOI 10.17182/hepdata.35863

None

10 data tables

No description provided.

No description provided.

No description provided.

More…

Small-Angle pi- p Elastic Scattering Measurements

Apokin, V.D. ; Derevshchikov, A.A. ; Matulenko, Yu.A. ; et al.
Phys.Lett.B 56 (1975) 391-394, 1975.
Inspire Record 90800 DOI 10.17182/hepdata.27866

We have measured small angle elastic pion-proton scattering in 40 and 50 GeV c π − beams at Serpukhov. Analysis of the data in the Coulomb interference region yields a value for the ratio of the real to the imaginary part of the strong amplitude, ϱ (0)=−0.074 ± 0.033 at 40 GeV/ c and ϱ (0)=−0.006 ±0.026 at 50 GeV/ c

2 data tables

STATISTICAL ERRORS ONLY.

STATISTICAL ERRORS ONLY.