Skubic, P.
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Two Particle Correlations in $e^+ e^-$ Annihilation

The PLUTO collaboration Berger, Christoph ; Genzel, H. ; Grigull, R. ; et al.
Phys.Lett.B 90 (1980) 312, 1980.
Inspire Record 144112 DOI 10.17182/hepdata.27256

We present measurements of two-particle angular correlations in hadron jets produced in e + e − annihilation between 7.7 and 31.6 GeV c.m. energy. The data are compared to predictions of high order perturbative QCD calculations.

1 data table
Table 1

No description provided.


COMPARISON OF SOME INCLUSIVE CHARACTERISTICS OF anti-p p INTERACTIONS AT 22.4-GeV/c MOMENTUM WITH THE PREDICTIONS OF THE QUARK - PARTON MODEL

Batyunya, B.V. ; Boguslavsky, I.V. ; Gramenitsky, I.M. ; et al.
Z.Phys.C 5 (1980) 17-26, 1980.
Inspire Record 144655 DOI 10.17182/hepdata.71257

None

7 data tables
Table 1

No description provided.

Table 2

DATA FOR EVNENT WITHOUT PAIRS FROM INTERFIERENCE REGION - YF 27, 1556.

Table 3

No description provided.

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INCLUSIVE AND SEMIINCLUSIVE PRODUCTION OF POSITIVE PIONS AND PROTONS IN ANTI-P P INTERACTIONS AT 22.4-GEV/C

The ALMA ATA-DUBNA-HELSINKI-MOSCOW-PRAGUE-TBILISI collaboration Boos, E.G. ; Ermilova, D.I. ; Samoilov, V.V. ; et al.
Nucl.Phys.B 174 (1980) 45-67, 1980.
Inspire Record 159212 DOI 10.17182/hepdata.7929

New results on the inclusive and semi-inclusive production of π + mesons and protons in the whole phase space are given for about 2.2 · 10 4 inelastic p p interactions at 22.4 GeV/ c . A method of statistical separation for spectra of particles of the same charge which are produced in CP -symmetrical reactions is discussed in detail. Experimental data are compared with quark-parton model predictions.

3 data tables
Table 1

No description provided.

Table 2

NON-ANNIHILATION EVENTS ONLY.

Table 3

No description provided.


INCLUSIVE PRODUCTION OF NEUTRAL STRANGE PARTICLES BY 147-GeV/c PI+ K+ p INTERACTIONS IN HYDROGEN

Brick, D. ; Shapiro, A.M. ; Widgoff, M. ; et al.
Nucl.Phys.B 164 (1980) 1, 1980.
Inspire Record 156268 DOI 10.17182/hepdata.8251

Results are presented from a study of inclusive neutral strange particle production by a 147 GeV/ c tagged π + /K + /p beam in the Fermilab 30-inch hydrogen bubble chamber. The experiment made use of the proportional hybrid spectrometer system. Results are based on 995 K S 0 , 485 Λ, and 83 Λ found in a sample of 132 000 pictures. Cross sections are given for inclusive production of these particles by each of the three beam particles, and comparisons are made with measurements at other energies. Topological cross sections are also calculated, and KNO multiplicity scaling is investigated. Distributions are presented of invariant cross sections as functions of the Feynman scaling variable x and c.m. rapidity y . The transverse momentum-squared distributions with their fitted slopes are also given. Comparisons are made of the production characteristics for the three beam types.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


CROSS-SECTIONS FOR PI- + P ---> N + (K) PI0 (K = 1 TO 5) AND PI- + P ---> N + ETA0 (ETA0 ---> 2 GAMMA) FOR INCIDENT PION MOMENTA BETWEEN 1.3-GEV/C AND 3.8-GEV/C

Crouch, H.R. ; Hargraves, R. ; Lanou, R.E. ; et al.
Phys.Rev.D 21 (1980) 3023-3058, 1980.
Inspire Record 158169 DOI 10.17182/hepdata.4334

This paper presents the results of a study of the dominant neutral final states from π−p interactions. The data were obtained in an experiment performed at the Brookhaven National Laboratory Alternating Gradient Synchrotron, using a set of steel-plate optical spark chambers surrounding a liquid-hydrogen target. We present differential and total cross sections for the reactions (1) π−p→n+π0 and (2) π−p→n+η0(η0→2γ) and total cross sections for the reactions (3) π−p→n+kπ0 (k=2, 3, 4, and 5) and (4) π−p→all neutrals for eighteen values of beam momentum in the interval 1.3 to 4.0 GeV/c. The angular distributions for (1) and (2) have been analyzed in terms of expansions in Legendre polynomials, the coefficients for which are also given.

41 data tables
Table 1

No description provided.

Table 2

SIG = 4*PI*LEG(L=0).

Table 3

FORWARD DIFFERENTIAL CROSS SECTION CALCULATED FROM LEGENDRE POLYNOMIAL COEFFICIENTS AND ERROR MATRICES.

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ALPHA ALPHA ELASTIC SCATTERING AT 4.32-GEV/C AND 5.07-GEV/C

Berger, J. ; Duflo, J. ; Goldzahl, L. ; et al.
Nucl.Phys.A 338 (1980) 421-428, 1980.
Inspire Record 157607 DOI 10.17182/hepdata.37084

αα elastic scattering was measured at 4.32 GeV/ c and 5.07 GeV/ c incident momenta. The four-momentum transfer range, extending from −0.05 to −0.77 (GeV/ c ) 2 , covers the first and second minimum regions. The results are compared with calculations based on Glauber theory.

2 data tables
Table 1

ERRORS SHOWN INCLUDE STATISTICAL ERRORS, QUASIELASTIC CONTRIBUTION SUBTRACTION ERROR, AND AN ASSYMETRIC ERROR RESULTING FROM THE UNCERTAINTIES AS TO THE ORIGIN OF THE WIDENING OF THE ELASTIC PEAK.

Table 2

ERRORS SHOWN INCLUDE STATISTICAL ERRORS, QUASIELASTIC CONTRIBUTION SUBTRACTION ERROR, AND AN ASSYMETRIC ERROR RESULTING FROM THE UNCERTAINTIES AS TO THE ORIGIN OF THE WIDENING OF THE ELASTIC PEAK.


MEASUREMENTS OF THE EM TIMELIKE FORM-FACTORS FOR KAON AND PION AT S**(1/2) = 1.5-GEV

Esposito, B. ; Marini, A. ; Piano Mortari, Giovanni ; et al.
Lett.Nuovo Cim. 28 (1980) 337-342, 1980.
Inspire Record 158283 DOI 10.17182/hepdata.37369

None

1 data table
Table 1

No description provided.


STUDY OF (PI+ PI- PI+ PI-) AND (PI+ PI- PI0) CHANNEL IN E+ E- ANNIHILATION AT 1.450-GEV - 1.875-GEV center-of-mass ENERGY

Esposito, B. ; Marini, A. ; Ronga, F. ; et al.
Lett.Nuovo Cim. 28 (1980) 195-200, 1980.
Inspire Record 158282 DOI 10.17182/hepdata.37366

None

2 data tables
Table 1

No description provided.

Table 2

POSSIBLE EVIDENCE FOR OMEGA(1670) RESONANCE.


OBSERVATION OF THE REACTION K- P ---> B- Y*+ AT 8.25-GeV/c

The BIRMINGHAM-CERN-GLASGOW-MICHIGAN STATE-PARIS collaboration Bloodworth, I.J. ; Carney, J.N. ; Cowan, C.A. ; et al.
Lett.Nuovo Cim. 27 (1980) 555-561, 1980.
Inspire Record 157726 DOI 10.17182/hepdata.37367

None

4 data tables
Table 1

No description provided.

Table 2

DOMINANT NATURAL PARITY EXCHANGE.

Table 3

EVIDENCE FOR FORWARD DIP FOR -TP < 0.1 GEV**2.

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A PRODUCTION IN K- P INTERACTIONS AT 32-GeV/c. FRANCE-SOVIET UNION AND CERN-SOVIET UNION COLLABORATIONS

Gensch, U. ; Becker, L. ; Kriegel, U. ; et al.
Nucl.Phys.B 173 (1980) 154-174, 1980.
Inspire Record 158995 DOI 10.17182/hepdata.34463

Lambda production is studied in K − p interactions at 32 GeV/ c . The total Λ cross section is 2.31±0.03 mb . Using the measured Λγ combinations we find that (31±4)% of all Λ's are produced via the Σ 0 → Λγ decay. About 60% of the Λ's are associated with either a N N or K K pair; about 40% of the Λ's are produced through the hypercharge annihiltion reaction K − p→ Λ + π 'a. The two-peak structure of the invariant x distribution can be related to fragmentation processes. The Λ is found to be unpolarized in the target fragmentation region, whereas a transverse polarization is observed for forward produced Λ's. As a function of p ⊥, a polarization effect is measured at medium p ⊥.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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