HEPData Search

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Study of the Reaction $\bar{p} p \to p X$ at 22.4-{GeV}/$c$

The Alma Ata-Dubna-Helsinki-Kosice-Moscow-Prague-Tbilisi collaboration Batyunya, B.V. ; Boguslavsky, I.V. ; Dashian, N.B. ; et al.

Sov.J.Nucl.Phys. 33 (1981) 64-66, 1981.

Inspire Record 154173 DOI 10.17182/hepdata.69635

None

49 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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rivet Analysis
Inclusive production of charged pions in p p collisions at 158-GeV/c beam momentum.

The NA49 collaboration Alt, C. ; Anticic, T. ; Baatar, B. ; et al.

Eur.Phys.J.C 45 (2006) 343-381, 2006.

Inspire Record 694016 DOI 10.17182/hepdata.43114

New results on the production of charged pions in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. Pions are identified by energy loss measurement in a large TPC tracking system which covers a major fraction of the production phase space. Inclusive invariant cross sections are given on a grid of nearly 300 bins per charge over intervals from 0 to 2 GeV/c in transverse momentum and from 0 to 0.85 in Feynman x. The results are compared to existing data in overlapping energy ranges.

26 data tables

Table 1

Double differential cross sections for PI+ and PI- in P P interactions at 158 GeV.

Table 2

Double differential cross sections for PI+ and PI- in P P interactions at 158 GeV.

Table 3

Double differential cross sections for PI+ and PI- in P P interactions at 158 GeV.

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Hadron production in diffractive deep-inelastic scattering.

The H1 collaboration Adloff, C. ; Aid, S. ; Anderson, M. ; et al.

Phys.Lett.B 428 (1998) 206-220, 1998.

Inspire Record 468748 DOI 10.17182/hepdata.44324

Characteristics of hadron production in diffractive deep-inelastic positron-proton scattering are studied using data collected in 1994 by the H1 experiment at HERA. The following distributions are measured in the centre-of-mass frame of the photon dissociation system: the hadronic energy flow, the Feynman-x (x_F) variable for charged particles, the squared transverse momentum of charged particles (p_T^{*2}), and the mean p_T^{*2} as a function of x_F. These distributions are compared with results in the gamma^* p centre-of-mass frame from inclusive deep-inelastic scattering in the fixed-target experiment EMC, and also with the predictions of several Monte Carlo calculations. The data are consistent with a picture in which the partonic structure of the diffractive exchange is dominated at low Q^2 by hard gluons.

6 data tables

Table 1

Energy flow distributions in the gamma*-pomeron CM frame.. Positive etarap corresponds to the direction of the incoming photon.

Table 2

Energy flow distributions in the gamma*-pomeron CM frame.. Positive etarap corresponds to the direction of the incoming photon.

Table 3

Energy flow distributions in the gamma*-pomeron CM frame.. Positive etarap corresponds to the direction of the incoming photon.

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Strangeness production in deep-inelastic positron proton scattering at HERA.

The H1 collaboration Aid, S. ; Anderson, M. ; Andreev, V. ; et al.

Nucl.Phys.B 480 (1996) 3-34, 1996.

Inspire Record 421030 DOI 10.17182/hepdata.44711

Measurements are presented of $K~0$ meson and $\Lambda$ baryon production in deep-inelastic positron-proton scattering (DIS) in the kinematic range $10 < Q~2 < 70\,$GeV$~2$ and $10~{-4} < x < 10~{-2}$. The measurements, obtained using the H1 detector at the HERA collider, are discussed in the light of possible mechanisms for increased strangeness production at low Bjorken-$x$. Comparisons of the $x_F$ spectra, where $x_F$ is the fractional longitudinal momentum in the hadronic centre-of-mass frame, with results from electron-positron annihilation are made. The $x_F$ spectra and the $K~0$ ``seagull'' plot are compared with previous DIS results. The mean $K~0$ and $\Lambda$ multiplicities are studied as a function of the centre-of-mass energy $W$ and are observed to be consistent with a logarithmic increase with $W$ when compared with previous measurements. A comparison of the levels of strangeness production in diffractive and non-diffractive DIS is made. An upper limit of $0.9\,$nb, at the $95\%$ confidence level, is placed on the cross-section for QCD instanton induced events.

5 data tables

Table 1

The XL distribution for K0 particles.

Table 2

The XL distribution for LAMBDA particles.

Table 3

Corrected Mean PT**2 for K0 production RE = E+ P --> E+ K0 X.

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HADRONS AND GAMMAS ASSOCIATED TO DIMUONS AND J / psi PARTICLES IN pi- C INTERACTIONS AT 38-GeV/c

The RISK collaboration Jani, J. ; Mihalyi, Z. ; Nyitrai, G. ; et al.

JINR-E1-87-397, 1987.

Inspire Record 251044 DOI 10.17182/hepdata.9973

None

7 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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DOUBLE CHARGE EXCHANGE OF NEGATIVE PIONS IN INCLUSIVE REACTIONS ON NUCLEI AT 40-GeV/c

Ananeva, M.A. ; Vishnyakov, V.V. ; Dikusar, N.D. ; et al.

EPL 4 (1987) 987, 1987.

Inspire Record 231157 DOI 10.17182/hepdata.9972

Inclusive production of π+ on four nuclear targets has been studied using a 40 GeV/c π- beam at the Serpukhov accelerator. No noticeable A-dependence has been found.

3 data tables

Table 1

'CM' MEAN PION NUCLEON REST SYSTEM.

Table 2

No description provided.

Table 3

No description provided.