Vlasov, M.K.
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Study of Inclusive Production of $\pi^\pm$ and Protons in $\bar{p} p$ Interactions at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Vlasov, E.V. ; Babintsev, V.V. ; Bumazhnov, V.A. ; et al.
Z.Phys.C 13 (1982) 95, 1982.
Inspire Record 176790 DOI 10.17182/hepdata.1191

Results are presented on the inclusive production of π± mesons and protons in\(\bar p\)p interactions at an incident antiproton momentum of 32 GeV/c in the MIRABELLE bubble chamber, based on a sample of 55,000 inelastic events. The spectra of π+(π−) andp(\(\bar p\)) are separated in the whole kinematically admitted region of phase space by a statistical method. The semi-inclusive and inclusive cross sections and the main average characteristics of π andp production are calculated. The invariant differential cross sections are studied as functions of the Fevnman scaling variablex, the rapidity and the transverse momentum. Thex distribution of π± mesons in the proton fragmentation region does not show any significant contribution from quark exchange or annihilation processes. A possible contribution of hard quark scattering on mesons or baryons is observed for large transverse momenta.

38 data tables
Table 1

No description provided.

Table 2

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Table 3

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BACKWARD PRODUCTION OF THE B (1235) MESON IN 11.46-GEV/C PI+ P INTERACTIONS

Wong, M.K. ; Key, A.W. ; Schwarzschild, B.M. ; et al.
Phys.Rev.Lett. 46 (1981) 974, 1981.
Inspire Record 169864 DOI 10.17182/hepdata.20643

Evidence for the backward production of the B(1235) meson in the final state π+p→pfπ+ω at 11.46 GeV/c with σ(|u′|<1.5 GeV2)=1.28±0.26 μb is presented. When nucleon exchange is assumed to dominate, estimates for the SU(3) mixing parameter FD as well as the B coupling to the nucleon-antinucleon are given. Some indication of a narrow enhancement at M(π+ω)≃1.03 GeV/c2 is seen, but confirmation of this as a resonant state is not yet possible.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Correlations of Hadrons in Nuclear Reactions With Production of Cumulative Protons Induced by $\pi^-$ Mesons With the Momentum of 6-{GeV}/c

Bayukov, Yu.D. ; Vlasov, A.V. ; Gavrilov, V.B. ; et al.
Sov.J.Nucl.Phys. 34 (1981) 840-841, 1981.
Inspire Record 173073 DOI 10.17182/hepdata.47514

None

5 data tables
Table 1

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Table 2

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Table 3

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Study on Correlations in $\pi^-$ C-12 Interactions at $P$ ($\pi^-$) = 40-{GeV}/$c$ in Cumulative Region

Anoshin, A.I. ; Lyubimov, V.B. ; Solovev, M.I. ; et al.
Yad.Fiz. 36 (1982) 409-416, 1982.
Inspire Record 156731 DOI 10.17182/hepdata.39233

None

22 data tables
Table 1

DATA FOR PIONS WITH MAXIMUM VALUE OF E*(1-COS(THETA))/W IN EVENT.

Table 2

DATA FOR PIONS WITH MAXIMUM VALUE OF E*(1-COS(THETA))/W IN EVENT.

Table 3

E*(1-COS(THETA))/W IS MAXIMUM OF THIS VALUE FOR ALL PIONS IN EVENT. PIONS WITH MAXIMUM VALUE OF E*(1-COS(THETA))/W IN EVENT ARE EXCLUDED FROM DATA.

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Isobar Production Inclusive Cross-sections in $\pi^-$ C-12 Interactions at $P$ ($\pi^-$) = 40-{GeV}/$c$

Anoshin, A.I. ; Lyubimov, V.B. ; Suleimanov, M.K. ;
JINR-P1-80-697, 1980.
Inspire Record 156825 DOI 10.17182/hepdata.39231

None

1 data table
Table 1

No description provided.


Production of Slow $\pi^0$ Mesons in $\pi^-$ C-12 Interactions at $P$ ($\pi^-$) = 40-{GeV}/$c$

Gasparian, A.P. ; Lyubimov, V.B. ; Suleimanov, M.K. ; et al.
JINR-P1-80-359, 1980.
Inspire Record 154326 DOI 10.17182/hepdata.39301

None

3 data tables
Table 1

No description provided.

Table 2

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Table 3

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A STUDY OF DOUBLE TAGGED TWO PHOTON REACTIONS AT SPEAR

Biddick, C.J. ; Burnett, T.H. ; Lyon, D.E. ; et al.
Phys.Lett.B 97 (1980) 320, 1980.
Inspire Record 159793 DOI 10.17182/hepdata.27144

We have identified 262 doubly tagged two-photon events. A subset of the data shows an enhancement of 21 events in the inclusive two-photon mass squared distribution between 0.8 and 2.2 GeV 2 . If these events result from spin 2 resonance production then Γ γγ = 9.5 ± 3.9 ± 2.4 keV (statistical and systematic). From another subset of 58 events in which the final state could be classified we determine the two-photon hadron to muon cross section ratio R γγ = 1.1 ± 0.3 ± 0.3.

1 data table
Table 1

ELECTRON BEAM ENERGIES OF 3.0 AND 3.6 GEV.



INCLUSIVE DELTA++ (1232) AND SIGMA+- (1385) PRODUCTION IN K- P INTERACTIONS AT 32-GEV/C. FRANCE-SOVIET UNION AND CERN-SOVIET UNION COLLABORATIONS

Walter, M. ; Becker, L. ; Klabuhn, J. ; et al.
Z.Phys.C 3 (1979) 89-95, 1979.
Inspire Record 148164 DOI 10.17182/hepdata.15987

We have studied inclusiveΔ++ (1232),∑+ (1385), and∑− (1385) baryon resonance production inK−p interactions at 32 GeV/c. The inclusive and topological cross sections are estimated and compared with published results at lower energies. No energy variation of the cross section is observed forΔ++ (1232) and only a slight decrease is seen in case of∑± (1385). The production properties are investigated through longitudinal and transverse momentum distributions. TheΔ++ (1232) is dominantly produced in the target fragmentation region. The∑+ (1385) is produced both in the target fragmentation region and in the central region, while the∑− (1385) is predominantly produced in the central region. About 20% of the final state protons are produced via aΔ++ (1232) decay and about 25% of the Λ produced come from the decay of∑+ (1385) and∑− (1385).

3 data tables
Table 1

No description provided.

Table 2

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Table 3

No description provided.