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n p elastic spin transfer measurements at 485-MeV and 635-MeV

McNaughton, K.H. ; Ambrose, D.A. ; Coffey, P. ; et al.
Phys.Rev.C 46 (1992) 47-51, 1992.
Inspire Record 342389 DOI 10.17182/hepdata.26097

We have measured the spin-transfer parameters KLL, KSL, KLS, and KSS at 635 MeV from 50° to 178° c.m. and at 485 MeV from 74° to 176° c.m. These new data have a significant impact on the phase-shift analyses. There are now sufficient data near these energies to overdetermine the elastic nucleon-nucleon amplitudes.

2 data tables
Table 1

Spin transfer parameters from np elastic scattering at 635 MeV. There is an additional overall normalisation of 2 PCT.

Table 2

Spin transfer parameters from np elastic scattering at 485 MeV. There is an additional overall normalisation of 2 PCT.


Comparison of inclusive inelastic scattering of pi+ and pi- from nuclei at 100-MeV

Rosenzweig, D.P. ; Amann, J.F. ; Boudrie, R.L. ; et al.
Phys.Rev.C 46 (1992) 1968-1973, 1992.
Inspire Record 348116 DOI 10.17182/hepdata.26086

Inclusive inelastic scattering spectra from C, Ca, Sn, and Pb were measured for 100-MeV pions at a number of angles. The observed ratios of the π− and π+ total inelastic cross sections for the different targets are explained in terms of a simple model which is based on the assumption that the scattered pion has interacted with only one nucleon. This model also accounts for the ratio between normal and charge-exchange scattering cross sections at 100 MeV.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Measurements of the Phi (rho + omega) ratio in a large kinematic region in p W and S W interactions

The HELIOS/3 collaboration Mazzoni, M.A. ;
Nucl.Phys.A 544 (1992) 623C-626C, 1992.
Inspire Record 343257 DOI 10.17182/hepdata.36665

We present our first results on φ and ϱ+ω production in pW and SW collisions at 200 GeV/nucleon, obtained using the HELIOS/3 muon spectrometer, which measures dimuons in a large acceptance in transverse momentum and rapidity. The data show a clear increase of the ratio φ/(ϱ+ω) going from pW to SW collisions and a slight increase from peripheral to central SW collisions. This the case for low (p t ≤ 0.6GeV/c) and high (p t > 0.6 GeV/c) transverse momentum. The rise is due to an increase in the number of produced φ mesons.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Particle production in interactions of 200-GeV/nucleon oxygen and sulfur nuclei in nuclear emulsion

The KLM collaboration Dabrowska, A. ; Holynski, R. ; Jurak, A. ; et al.
Phys.Rev.D 47 (1993) 1751-1761, 1993.
Inspire Record 338512 DOI 10.17182/hepdata.40446

Oxygen and sulfur nuclei with energies of 200 GeV/nucleon have been allowed to interact in nuclear emulsions exposed at CERN. These emulsions have been scanned with a minimum bias so that essentially all the interactions occurring were detected. Nearly 1000 interactions of each projectile have been analyzed. We present results on the multiplicity distributions, the pseudorapidity distributions, and the fragmentation of the projectile and target nuclei. It is shown that the mean number of intranuclear collisions in each interaction, calculated from a superposition model, provides a useful parameter for organizing the data. We conclude that there are no significant deviations even at these energies from models, such as the venus model, describing the interactions as being the superposition of individual nucleon-nucleon collisions.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Angular distribution of the production of symmetric hadron pairs in pi- p collisions at 40-GeV

Volkov, A.A. ; Kostritsky, A.V. ; Abramov, V.V. ; et al.
JETP Lett. 58 (1993) 486-492, 1993.
Inspire Record 346766 DOI 10.17182/hepdata.40644

None

7 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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The Reaction pi+ p ---> p 2 pi+ pi- at a beam momentum of 4.2-GeV/c: Cross-sections for resonance production in the final state

Brovkin, L.Yu. ; Kiselevich, I.L. ; Mikhailichenko, V.I. ; et al.
Sov.J.Nucl.Phys. 55 (1992) 549-553, 1992.
Inspire Record 343896 DOI 10.17182/hepdata.39978

None

2 data tables
Table 1

No description provided.

Table 2

FOR PI- MESON: THETA(RF=LAB)=<75 DEGREE.


Neutral pion production in the reactions O-16 + Al-27, Ni-58, Pb-208 at E(lab) = 95-MeV/nucleon

Moisan, C. ; de Takacsy, N. ; Barrette, J. ; et al.
Nucl.Phys.A 537 (1992) 667-691, 1992.
Inspire Record 337055 DOI 10.17182/hepdata.36690

The production of neutral pions has been studied in the 16 O+ 27 Al, 58 Ni, 208 Pb reactions at 95 MeV/nucleon. Inclusive pion differential distributions d σ d p t , d σ d T π , and d σ d Ω have been measured by detecting the two-pion decay γ-rays in a setup of 8 lead glass Cherenkov detector telescopes. The data are discussed in the framework of a moving thermal source model. It is shown that the shape of the pion energy spectra is better described if mean field effects on the primary pion-production cross section and pion reabsorption are included in the calculation.

6 data tables
Table 1

Axis error includes +- 10/10 contribution.

Table 2

SPECTRA WERE FITTED USING THE FORMULA D3(N)/D3(P)= CONST/(EXP(EKIN(P=3)/T)-1).

Table 3

Axis error includes +- 10/10 contribution.

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Cross-sections of backward proton production in 40-GeV/c pi- (K-, anti-p) A interactions

Antipov, Yu.M. ; Batarin, V.A. ; Bezzubov, V.A. ; et al.
Nucl.Phys.A 536 (1992) 637-647, 1992.
Inspire Record 337176 DOI 10.17182/hepdata.36704

The inclusive cross sections of backward proton production in π − ( K − , p ) -Be, Al, Cu, Pb interactions at 40 GeV/ c are presented. Protons have been detected in the angular range 150°–165° and kinetic energy region 0.1–0.3 GeV. The invariant cross-section ratios for various beam particles are independent of the values of kinetic energy and of the nuclear target type: 〈ƒ K − /ƒ π − 〉= 0.87 ± 0.03 stat ± 0.03 syst , 〈ƒ p /ƒ π − 〉 = 1.82 ± 0.10 stat ± 0.05 syst . The A -dependence of the cross-section slope parameter for A ⩾27 is less than ∼2%.

22 data tables
Table 1

CYCLE N1.

Table 2

CYCLE N1.

Table 3

CYCLE N1.

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Fragmentation cross-sections of O-16 between 0.9-GeV/nucleon and 200-GeV/nucleon

Hirzebruch, S.E. ; Heinrich, W. ; Tolstov, K.D. ; et al.
Phys.Rev.C 46 (1992) 1487-1494, 1992.
Inspire Record 345208 DOI 10.17182/hepdata.38512

Inclusive cross sections for high energy interactions at 0.9, 2.3, 3.6, and 13.5 GeV/nucleon of O16 with C, CR-39 (C12H18O7), CH2, Al, Cu, Ag, and Pb targets were measured. The total charge-changing cross sections and partial charge-changing cross sections for the production of fragments with charge Z=6 and Z=7 are compared to previous experiments at 60 and 200 GeV/nucleon. The contributions of Coulomb dissociation to the total cross sections are calculated. Using factorization rules the partial electromagnetic cross sections are separated from the nuclear components. Energy dependence of both components are investigated and discussed.

1 data table
Table 1

No description provided.


Recent results from experiment NA35.

The NA35 collaboration Seyboth, P. ; Baechler, J. ; Bartke, J. ; et al.
Nucl.Phys.A 544 (1992) 293C-307C, 1992.
Inspire Record 343637 DOI 10.17182/hepdata.36668

Enhanced strange particle production, nonstatistical multiplicity fluctuations and two-pion Bose-Einstein correlations were measured in O, S-nucleus reactions at 60 and 200 GeV/nucleon. The results indicate significant collective effects in high-energy nucleus-nucleus collisions.

2 data tables
Table 1

CENTRAL COLLISIONS.

Table 2

CENTRAL COLLISIONS.