HEPData Search

Showing 10 of 27 results

Comparison of Neutral Particle Production in 100-GeV/c anti-p p and p p Interactions.

Ward, D.R. ; Ansorge, R.E. ; Bust, C.P. ; et al.

Phys.Lett.B 62 (1976) 237-240, 1976.

Inspire Record 112616 DOI 10.17182/hepdata.5528

We derive cross-sections for the inclusive productiion in p̄p interactions at 100 GeV /c of π 0 , K S 0 and Λ 0 Λ 0 of 91.5±5.7 mb, 5.2±0.4 mb and 4.8±0.4 mb respectively, which are all higher than pp cross-sections at energy. We find indications that these differences can be attributed to “annihilation” processes.

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Neutral Particle Production in 100-GeV/c $\bar{p}p$ Interactions

Raja, R. ; Moore, Craig D. ; Voyvodic, L. ; et al.

Phys.Rev.D 15 (1977) 627, 1977.

Inspire Record 110399 DOI 10.17182/hepdata.24539

We have investigated the inclusive production of γ, KS0, Λ0, and Λ¯0 in 100-GeV/c p¯p interactions in the 30-in. hydrogen bubble chamber at Fermilab. We present various inclusive distributions and compare them with corresponding distributions in 100-GeV/c pp interactions and lower-energy p¯p interactions. We find some evidence for Σ(1385) production but none for K*(890) production. We find evidence for a nonzero Λ0 polarization of -0.45 ± 0.21.

9 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

$\gamma$ and $\pi^0$ Production in $\bar{p} p$ Interactions at 22.4-{GeV}/$c$

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

Sov.J.Nucl.Phys. 32 (1980) 684, 1980.

Inspire Record 154051 DOI 10.17182/hepdata.18075

None

17 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

GENERAL FEATURES OF ANTI-P P INTERACTIONS AT 7.3-GEV/C

Patel, G.D. ; Johnson, P. ; Mason, P. ; et al.

Z.Phys.C 12 (1982) 189-202, 1982.

Inspire Record 179888 DOI 10.17182/hepdata.2239

Absolute inclusive cross sections for$\bar pp$ interactions at 7.3 GeV/c are given. The data cover prong cross sections,V0, γ production and inclusive charged particle (p/π) production. Separation has been made into annihilation and non-annihilation components. Inclusive π+, π− production in the processes of$\bar pp$ annihilation and non-annihilation are compared with simple quark models.

26 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

ANNIHILATION AND NON-ANNIHILATION TOPOLOGICAL CROSS SECTIONS.

More…

DIFFERENCES BETWEEN ANTI-P P AND P P INTERACTIONS AT 8.8-GeV/c AND THEIR RELATIONSHIP TO ANTI-P P ANNIHILATIONS

Booth, C.n. ; Ansorge, R.e. ; Carter, J.r. ; et al.

Phys.Rev.D 27 (1983) 2018, 1983.

Inspire Record 194364 DOI 10.17182/hepdata.23838

We report on an experiment in which the SLAC 40-in. hybrid facility was exposed to an 8.8-GeV/c antiproton beam. Using external detectors we have identified a large fraction of nonannihilation events and thus obtained a clean sample of annihilation data. Using proton interactions taken in the same detector at the same energy we have made a detailed study of (p¯p−pp) differences and explored their relationship to p¯p annihilations.

27 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

INCLUSIVE gamma PRODUCTION IN anti-p p INTERACTIONS AT 12-GeV/c

Chakrabarti, S. ; Banerjee, S. ; Ganguli, S.N. ; et al.

Z.Phys.C 27 (1985) 1, 1985.

Inspire Record 202797 DOI 10.17182/hepdata.16116

The inclusive production of photons in$\bar pp$ interactions has been studied at incident momentum of 12 GeV/c. Topological cross section has been presented and KNO distribution for$\bar pp$ interactions has been studied. Inclusive cross section for γ production has been measured to be 149.5±8.8 mb. Bulk of these photons come from π0 decays whose cross section has been evaluated independently to be 60.4±7.9 mb. Signals of η and ω have been seen in γγ and π+π-π0 decay modes and their inclusive cross sections have been estimated to be 14.9±8.8 mb and 14.6±7.0 mb respectively. Results on average multiplicities of γ and two particle correlation parameters are presented. Neutral pions seem to be more strongly correlated than the charged pions. The inclusive distributions of the Feynmanx andpT/2 of the photons are compared with expectation from charged pions on the basis of charge independence. Energy dependence of the normalised invariant distributions has been studied. The distribution of the scaling variablez of photons ine+e− and$\bar pp$ interactions has been compared.

8 data tables

Table 1

Table 2

Table 3

More…

A comparison of direct photon, $\pi^0$, and $\eta$ production in $p\bar{p}$p and $pp$ interactions at the CERN ISR

The Axial Field Spectrometer collaboration Akesson, T. ; Albrow, M.G. ; Almehed, S. ; et al.

Phys.Lett.B 158 (1985) 282-288, 1985.

Inspire Record 213984 DOI 10.17182/hepdata.30391

We have measured the production of direct photons, π 0 's, and η's in p p and pp collisions at √ s =53 GeV in the range 2≈ p T ≈6 GeV/ c for the central rapidity region | y | 0.4. No statistically significant difference between pp̄ and pp interactions is observed.

5 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Direct Photon Production at the {CERN} $\bar{p} p$ Collider

The UA2 collaboration Appel, J.A. ; Bagnaia, P. ; Banner, M. ; et al.

Phys.Lett.B 176 (1986) 239, 1986.

Inspire Record 229895 DOI 10.17182/hepdata.30247

Using the UA2 apparatus, the inclusive cross section has been measured for production of high- p T direct photons in p̄p collisions at s =546 GeV and s =630 GeV . The results are in good agreement with QCD predictions.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Direct Photon Production in Proton - Anti-proton Interactions at $\sqrt{s}=24$.3-{GeV}

The UA6 collaboration Bernasconi, A. ; Breedon, R.E. ; Camilleri, L. ; et al.

Phys.Lett.B 206 (1988) 163-168, 1988.

Inspire Record 261244 DOI 10.17182/hepdata.29982

Direct photons have been studied in pp̄ interactions at √ s = 24.3 GeV and in the transverse momentum ( p T ) range 3–7 GeV/ c (0.25 < x T < 0.58). The experiment was performed using an internal H 2 cluster the target in the CERN pp̄ Collider. The measured invariant cross section is compared with recent theoretical predictions.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Direct Photon Production at the CERN Proton - anti-Proton Collider

The UA1 collaboration Albajar, C. ; Albrow, M.G. ; Allkofer, O.C. ; et al.

Phys.Lett.B 209 (1988) 385-396, 1988.

Inspire Record 261356 DOI 10.17182/hepdata.29949

Isolated photons, produced directly by a scattering process, have been observed in the UA1 experiment at the CERN p p collider at centre-of-mass energies √=546 GeV and √=630 GeV . Single and double photon differential cross sections have been determined and found to be consistent with the expectations of QCD.

6 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Date

Collaboration

Subject_areas

Phrases

Reactions Reset

Observables

CM Energies (GeV)

Authors

Comparison of Neutral Particle Production in 100-GeV/c anti-p p and p p Interactions.

Neutral Particle Production in 100-GeV/c $\bar{p}p$ Interactions

$\gamma$ and $\pi^0$ Production in $\bar{p} p$ Interactions at 22.4-{GeV}/$c$

GENERAL FEATURES OF ANTI-P P INTERACTIONS AT 7.3-GEV/C

DIFFERENCES BETWEEN ANTI-P P AND P P INTERACTIONS AT 8.8-GeV/c AND THEIR RELATIONSHIP TO ANTI-P P ANNIHILATIONS

INCLUSIVE gamma PRODUCTION IN anti-p p INTERACTIONS AT 12-GeV/c

A comparison of direct photon, $\pi^0$, and $\eta$ production in $p\bar{p}$p and $pp$ interactions at the CERN ISR

Direct Photon Production at the {CERN} $\bar{p} p$ Collider

Direct Photon Production in Proton - Anti-proton Interactions at $\sqrt{s}=24$.3-{GeV}

Direct Photon Production at the CERN Proton - anti-Proton Collider