Reay, N.W.
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Correlations Among Particles Produced in Proton Interactions With Emulsion Nuclei at 800-{GeV}

Barbier, L.M. ; Jones, W.V. ; Wefel, J.P. ; et al.
Phys.Rev.D 37 (1988) 1113, 1988.
Inspire Record 256580 DOI 10.17182/hepdata.3823

Correlations among the produced particles in interactions of 800-GeV protons with nuclei in photographic emulsion provide evidence for nonindependent production of the secondary particles. Assuming particle production in clusters, the analysis implies an average multiplicity of about 3 charged particles per cluster.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

IN THIS TABLE ETARAP(P=3)=ETARAP(P=4).

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Charged Particle Multiplicity and Angular Distributions in Proton Emulsion Interactions at 800-{GeV}

The BATON ROUGE-CRACOW-MOSCOW-TASHKENT collaboration Abduzhamilov, A. ; Barbier, L. ; Chernova, L.P. ; et al.
Phys.Rev.D 35 (1987) 3537-3540, 1987.
Inspire Record 254225 DOI 10.17182/hepdata.3930

The interaction of 800-GeV protons in nuclear emulsion has been investigated. The multiplicities and angular distributions of charged particles emitted by both the projectile and the target nucleus have been measured for 1718 inelastic events and are compared with the data obtained in proton-emulsion collisions at 67, 200, and 400 GeV. The target excitation is found to be independent of energy while the production of secondary particles continues to increase with incident proton energy.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Backward $\pi d$ Scattering Between 140-{MeV} and 260-{MeV}

The OMICRON collaboration Stanovnik, A. ; Kernel, G. ; Tanner, N.W. ; et al.
Phys.Lett.B 94 (1980) 323-326, 1980.
Inspire Record 153157 DOI 10.17182/hepdata.27191

Differential cross sections for elastic scattering of pions by deuterons have been measured for centre-of-mass angles between 130° and 175°, and at laboratory energies 141, 177, and 260 MeV for π + , and at 151, 185, and 189 MeV for π − . At 177 and 260 MeV the cross sections are a factor of 2 lower than the predictions of three-body theories.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Operation and Performance of a System for $\pi p$ and $\pi D$ Backward Scattering

Stanovnik, A. ; Kernel, G. ; Tanner, N.W. ; et al.
Nucl.Instrum.Meth. 177 (1980) 369, 1980.
Inspire Record 152948 DOI 10.17182/hepdata.41451

A simple, large-solid-angle apparatus, specially suited for the measurement of backward elastic scattering of medium-energy pions on protons and deuterons, is described. The method of analysis which reduces background and determines elastic events from a data sample of 185 MeV negative pions incident on a D 2 O target is discussed. Results for 141 MeV π + p and 185 MeV π − p backward cross-sections are also presented and compared with cross-sections calculated from known phase shifts.

2 data tables

N p Charge Exchange Scattering at Fermilab

Barton, H.R., Jr. ; Reay, N.W. ; Reibel, K. ; et al.
Phys.Rev.Lett. 37 (1976) 1656, 1976.
Inspire Record 112288 DOI 10.17182/hepdata.21058

We have measured the neutron-proton charge-exchange differential cross section in the momentum interval 60 to 300 GeV/c, with squared four-momentum transfers 0.002 to 0.8 (GeV/c)2. Independent of incident momentum, the data are characterized by a sharp forward peak of width 0.02 (GeV/c)2, followed by a shoulder and gentler falloff at higher momentum transfers.

1 data table
Table 1

No description provided.


A High Statistics Study of Omega0 Production

The Carleton-Michigan State-Ohio State-Toronto collaboration Shaevitz, M.H. ; Reay, N.W. ; Reibel, K. ; et al.
Phys.Rev.Lett. 36 (1976) 8, 1976.
Inspire Record 2932 DOI 10.17182/hepdata.37234

We report results from a study of π−p→ω0n at 6.0 GeV/c based on 28 000 events from a charged and neutral spectrometer. Background under the ω0 is only 7%, a large improvement over deuterium-bubble-chamber work. Density matrix elements, projected cross sections, and effective trajectories for natural and unnatural exchanges are presented.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Differential Cross-Section for pi- p --> eta0 n at 6.0-GeV/c

The Carleton-Michigan State-Ohio State-Toronto collaboration Shaevitz, M.H. ; Reay, N.W. ; Reibel, K. ; et al.
Phys.Rev.Lett. 36 (1976) 5, 1976.
Inspire Record 2931 DOI 10.17182/hepdata.21104

We have measured the differential cross section for π−p→η0n at 6.0 GeV/c from 6730 very clean events in which the decay η→π+π−π0 was detected. The high statistics reveals a sizable forward turnover, implying a dominance of the helicity-flip amplitude. A precisely determined A2 trajectory, linear for |t|<1.0 (GeV/c)2, is found from combining our data with those at energies up to 101 GeV.

1 data table
Table 1

THE RESOLUTION IN TP IS EVERYWHERE SMALLER THAN THE BIN WIDTH.


Partial-wave analyses of the (3π)-system in the reaction π − p → π − π − π + p at 11.2 GeV/ c

The Bologna-Florence-Genoa-Milan-Oxford-Pavia collaboration Thompson, G. ; Antich, P. ; Boldetti, A. ; et al.
Nucl.Phys.B 101 (1975) 285-303, 1975.
Inspire Record 2860 DOI 10.17182/hepdata.36138

The results are presented of two partial-wave analyses of the (3π) − system in 30 000 events of the reaction π − p → π − π − π + p at 11.2 GeV/ c . Both techniques incorporate the assumptions of the isobar model and are (a) the University of Illinois program which fits in terms of the (3π) density matrix elements and (b) an amplitude parametrisaton including possible effects of both spin non-flip and spin flip at the baryon vertex. The results obtained with these independent programs are found to be very close.

2 data tables
Table 1

NORMALIZED TO A TOTAL REACTION CROSS SECTION OF 1.17 +- 0.24 MB. ALL QUOTED CROSS SECTIONS ARE FOR INTEGRATED BREIT-WIGNERS.

Table 2

A2 2+D-WAVE FOR 1.2 < M(3PI) < 1.4 GEV. THE FIRST THREE COMBINATIONS OF DENSITY MATRIX ELEMENTS ARE FOR NATURAL PARITY EXCHANGE, AND THE REMAINDER UNNATURAL.


Measurement of the polarization parameter in n p charge-exchange scattering from 2 to 12 gev/c

Abolins, M.A. ; Lin, M.T. ; Ruchti, R.C. ; et al.
Phys.Rev.Lett. 30 (1973) 1183-1185, 1973.
Inspire Record 84508 DOI 10.17182/hepdata.21408

We have measured the polarization parameter in neuton-proton charge-exchange scattering for incident neutron momenta of 2-12 GeVc and 0.01<~|t|<~1.0 (GeVc)2. Results based on 300 000 events show a negative polarization whose magnitude increases monotonically with |t| approaching 60% for |t|∼0.6 and which has little energy dependence.

1 data table
Table 1

No description provided.


Pion-deuteron scattering near the 3-3 resonance

Gabathuler, K. ; Cox, C.R. ; Domingo, J.J. ; et al.
Nucl.Phys.B 55 (1973) 397-407, 1973.
Inspire Record 84138 DOI 10.17182/hepdata.32565

The elastic scattering of positive pions by deuterium has been studied using a scintillating target to detect the recoil deuteron. In addition to the angular distribution measured for 256 MeV incident energy, the energy variation of the fixed angle cross section ( θ lab =160°) has been determined between 141 MeV and 256 MeV. The former is in qualitative agreement with a simple multiple-scattering calculation, but the energy dependence is poorly reproduced.

6 data tables
Table 1

'SMALL-ANGLE TECHNIQUE' - CALIBRATED AT THETA(RF=LAB) OF 30 DEG.

Table 2

'SMALL-ANGLE TECHNIQUE' - CALIBRATED AT THETA(RF=LAB) OF 30 DEG.

Table 3

'LARGE-ANGLE TECHNIQUE' - CALIBRATED AT EACH ANGLE.

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