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Polarization in Charge Exchange Reaction $\pi^- p \to \pi^0 n$ at 40-{GeV}/$c$ for the Four Momentum Transfer Range $0 < T < 2$-{GeV}/$c^2$

Apokin, V.D. ; Avvakumov, I.A. ; Bagaturiya, Yu.Sh. ; et al.

Z.Phys.C 15 (1982) 293, 1982.

Inspire Record 169455 DOI 10.17182/hepdata.41256

The results on measuring polarization in charge exchange reaction π−+p→π0+n at 40 GeV/c are presented for the 4-momentum transfer range from 0 up to 2 (GeV/c)2. At |t|≦0.4 (GeV/c)2 the polarization has a positive sign. In the “crossover” region of π± elastic scattering a possible minimum in the polarization behaviour has been seen for the first time. the polarization is zero within the statistical accuracy near this point. In the “deep” region of the charge-exchange differential cross-section the polarization has a negative sign. The presented data are not in agreement with the modern theoretical models.

1 data table

Table 1

K*+ (892) AND rho0 PRODUCTION WITH MESON AND BARYON TRIGGERS IN THE FRAGMENTATION PROCESSES IN K+ p INTERACTIONS AT 32-GeV/c

The CERN-Soviet collaboration Azhinenko, I.V. ; Barth, M. ; Chliapnikov, P.V. ; et al.

IFVE-81-158, 1981.

Inspire Record 169081 DOI 10.17182/hepdata.38333

None

11 data tables

Table 1

No description provided.

Table 2

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Table 3

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A Study of Multiparticle Fragmentation in $K^+ p$ Interactions at 32-{GeV}/$c$

The CERN-Soviet collaboration De Wolf, E.A. ; Dumont, J.J. ; Verbeure, F. ; et al.

Z.Phys.C 12 (1982) 105, 1982.

Inspire Record 169082 DOI 10.17182/hepdata.41344

Results are presented on inclusive production of resonant and non-resonant particle systems produced inK+p interactions at 32 GeV/c. We compareK*+(892),$\bar \Sigma ^{ *- } $(1385), Σ*±(1385), and ϱ0 inclusivex-spectra with the ones of non-resonantKs0π±,$\bar \Lambda \pi ^ -$, Λπ± and π+π− pairs at the same effective mass. Resonance-particle pairsK*+π±, Σ*+π−, and$\bar \Sigma ^{ *- } \pi ^ -$ are also studied together with non-resonant tripletsKs0π±, Λπ+π−,$\bar \Lambda \pi ^ -\pi ^ -$. The invariantx-spectra of resonant particle pairs decrease less rapidly withx then the corresponding non-resonant pairs. Comparison with quark-recombination predictions indicates that the particles, resonances and multiparticle systems are probably created off a single valence quark or diquark instead of carrying all possible valence-quarks.

19 data tables

Table 1

No description provided.

Table 2

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Table 3

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LONGITUDINAL CORRELATIONS BETWEEN PIONS IN INCIDENT HADRON FRAGMENTATION REGION IN K- p INTERACTIONS AT 32-GeV/c

Bumazhnov, V.A. ; Buschbeck, B. ; Cochet, C. ; et al.

IFVE-81-112, 1981.

Inspire Record 168441 DOI 10.17182/hepdata.41430

None

62 data tables

Table 1

DISTRIBUTION IS PRESENTED IN THE BEAM FRAGMENTATION REGIONS.

Table 2

DISTRIBUTION IS PRESENTED IN THE BEAM FRAGMENTATION REGIONS.

Table 3

DISTRIBUTION IS PRESENTED IN THE BEAM FRAGMENTATION REGIONS.

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Inclusive $K^{+}$(1430), $K^{0}$(1430) and $F(1270)$ Production in $K^+ p$ Interactions at 32-{GeV}/$c$

Chliapnikov, P.V. ; Falaleev, V.P. ; Gerdyukov, L.N. ; et al.

Z.Phys.C 12 (1982) 113, 1982.

Inspire Record 167340 DOI 10.17182/hepdata.10914

Results are presented on total and semiinclusive cross sections, longitudinal and transverse momentum distributions of the tensor mesonsK*+(1430),K*0(1430), andf(1270) observed inK+p interactions at 32 GeV/c. The data are compared withK*+(892).K*0(896) and ϱ0 vector meson production in the same experiment. The shapes of inclusive invariantx-spectra for the strange vector and tensor mesons are found to be rather similar, after removal of diffractive and quasi-two-body channels, in agreement with quark-recombination ideas.

21 data tables

Table 1

MULT FOR THE TENSOR MESONS CALCULATED AS MULT=SIG(RES)/SIG(N<=8), WHERE SIG(N<=8) IS THE SUM OF TOPOLOGICAL CROSS SECTIONS WITH N <= 8.

Table 2

No description provided.

Table 3

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Comparison of Strange Anti-baryon and Strange Meson Production in $K^+ p$ Interactions at 32-{GeV}/$c$

Chliapnikov, P.V. ; Gerdyukov, L.N. ; Khromova, G.N. ; et al.

Z.Phys.C 12 (1982) 99, 1982.

Inspire Record 167341 DOI 10.17182/hepdata.10880

New experimental results are presented on inclusive production properties of$\bar \Sigma ^{ *+ } $(1385) and$\bar \Sigma ^{ *+ } $(1385) inK+p interactions at 32 GeV/c. The analysis is based on significantly larger statistics than previously available. A comparison is also made of invariantx-distributions ofK0/$\bar K^0 $,$\bar \Lambda $ and$\bar \Xi ^ +$ and of$\bar \Sigma ^{ *\pm } $(1385) andK*+(892). These spectra exhibit regularities expected from the quark-recombination picture when it is assumed that the strange mesons and antibaryons are produced off the strange$\bar s$-valence-quark in the incidentK+ meson. Transverse momentum distributions are also presented forK*+(892) and$\bar \Sigma ^{ *\pm } $(1385) and found to be very similar. The results on strange antibaryon average multiplicities disagree strongly with a recent version of the additive quark model.

32 data tables

Table 1

No description provided.

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MEASUREMENTS OF LAMBDA0 POLARIZATION PRODUCED BY 40-GeV NEUTRONS ON CARBON NUCLEI IN INCLUSIVE PROCESSES

The Dubna-Berlin-Moscow-Prague-Sofiya-Tbilisi collaboration Aleev, A.N. ; Arefev, V.A. ; Balandin, V.P. ; et al.

JINR-P1-81-165, 1981.

Inspire Record 165431 DOI 10.17182/hepdata.39207

None

1 data table

Table 1

No description provided.

Inclusive Production of Neutral Strange Particles in $\bar{P} P$ Interactions at 32-{GeV}/$c$. France-soviet Union and {CERN}-soviet-union Collaborations

Poiret, C. ; Grard, F. ; Windmolders, R. ; et al.

Z.Phys.C 11 (1981) 1-7, 1981.

Inspire Record 171896 DOI 10.17182/hepdata.2142

The inclusiveKn, ¶,and$\bar \Lambda$ production has been studied in a$\bar pp$ experiment performed in the Mirabelle bubble chamber at an incident beam momentum of 32.1 GeV/c. Total, topological and differential cross sections are presented and compared with those obtained at other energies. The invariant structure functions have been parametrised in the fragmentation region by a power law and are consistent with the expectations based on quark counting rules.

5 data tables

Table 1

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Table 3

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