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Central Collisions of 800-{GeV} Protons With Ag / Br Nuclei in Nuclear Emulsion

The BATON ROUGE-KRAKOW-MOSCOW-TASHKENT collaboration Abduzhamilov, A. ; Barbier, L.M. ; Chernova, L.P. ; et al.

Phys.Rev.D 39 (1989) 86-91, 1989.

Inspire Record 280844 DOI 10.17182/hepdata.3813

Central collisions of 800-GeV protons with the heavy components of nuclear emulsion, Ag107 and Br80, have been investigated to determine the characteristics of small-impact-parameter collisions and, by comparison with the analysis of inclusive proton-emulsion inelastic interactions and inelastic proton-nucleon collisions, to study the dependence of the interaction process on the mean number of intranuclear collisions 〈ν〉. The data are also compared with the results obtained in proton-emulsion collisions, both central and inclusive, at 200 GeV. The variations in the secondary-particle multiplicities and the normalized pseudorapidity density correlate with 〈ν〉 and demonstrate that proton-nucleus interactions, both central and inclusive, can be described adequately by the incoherent superposition of proton-nucleon collisions.

5 data tables

Table 1

NUCLEUS IS AVERAGE NUCLEUS OF EMULSION.

Table 2

NUCLEUS IS AVERAGE NUCLEUS OF EMULSION.

Table 3

NUCLEUS IS AVERAGE NUCLEUS OF EMULSION.

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Observation of Backward Production of Sigma- (1385) Resonance in Quasi Two Particle Reactions pi- p --> K+ (K+) Sigma*- (1385) at 4.35-GeV/c and 4.85-GeV/c Momenta

Aleshin, Yu.D. ; Arutyunyants, G.A. ; Kiselevich, I.L. ; et al.

Sov.J.Nucl.Phys. 24 (1976) 519, 1976.

Inspire Record 109020 DOI 10.17182/hepdata.19078

None

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

Production of Sigma (1660) in K- p Interactions at 4.2-GeV/c

The Amsterdam-CERN-Nijmegen-Oxford collaboration Timmermans, Jan ; Engelen, J.J. ; Heinen, P.M. ; et al.

Nucl.Phys.B 112 (1976) 77-106, 1976.

Inspire Record 108671 DOI 10.17182/hepdata.35709

The reaction of K − p → Σ + (1660) π − was studied in a 65 event/μb sample of Σππ(π), Λππ(π) and p K 0 π − final states. The main production features observed are that the Σ (1660) decaying into Σππ is mostly Λ (1405) π and is produced only at small t ; the Σ (1660) decaying into Σπ shows both forward and backward production. This confirms earlier results suggesting the existence of two Σ (1660) resonances. An Adair analysis and a (model-dependent) moments analysis find a J = 3 2 preference for the Σ + (1660)→ Λ (1405) π + → Σ + π − π + ; a Dalitz-Miller analysis of the decay Σ + (1660) → Λ (1405) π + → Σ − π + π + determines J P to be 3 2 − . For the Σ + (1660) → Σ 0 π + a moments analysis suggests J = 3 2 . Branching ratios are determined, which (with the exceptation of the Λ (1405) π mode) are in reasonable agreement with results from formation experiments for the J P = 3 2 − Σ(1660) resonance. We compare our branching ratios with SU(3) and SU(6) predictions; the latter comparison suggests that, unless there is strong configuration mixing, Σ (1660) → Λ (1405) π , if 3 2 − , cannot be a member of the (70, 1 − ) multiplet.

4 data tables

Table 1

No description provided.

Table 2

PRODUCTION ANGULAR DISTRIBUTIONS OF SIG(1670D13)+ DIFFER FOR THE TWO FINAL STATES <LAM(1405S01) PI+> AND <SIGMA PION> SUGGESTING THE EXISTENCE OF TWO SIG(1660) RESONANCES.

Table 3

VALUES IN STRONG DISAGREEMENT WITH THE STODOLSKY-SAKURAI MODEL PREDICTIONS.

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Experimental Study of Lambda p and xi0 p Interactions in the Range 1-GeV/c-10-GeV/c

Hauptman, J.M. ; Kadyk, J.A. ; Trilling, G.H. ;

Nucl.Phys.B 125 (1977) 29-51, 1977.

Inspire Record 119088 DOI 10.17182/hepdata.35369

The reactions Λ p → Λ p, → Σ ± p π ∓ , → Λ p π + π − and → Σ 0 p have been studied in the SLAC 82 inch bubble chamber for incident Λ particles in the momentum range 1–10 GeV/ c . The incident Λ flux was produced by the exposure of a platinum target mounted inside the chamber to a 12 GeV K − beam. A total of 992 events have been analyzed. The reactions are found to be qualitatively similar to corresponding nucleon-nucleon reactions. In particular, the slope parameter B in the elastic cross section d σ /d t = A e Bt has been determined as a function of incident momentum and found to be consistent with that for proton-proton elastic scattering. Angular distributions for the inelastic channels are compared with those of similar nucleon-nucleon reactions, and predictions of relevant exchange models.

13 data tables

Table 1

IN BINS OF EQUAL INCIDENT LAMBDA PATH-LENGTH.

Table 2

IN 100 MEV/C BINS.

Table 3

No description provided.

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PHOTOPRODUCTION OF RHO0 MESONS ON HYDROGEN AT GAMMA QUANTA ENERGIES OF 15-GEV - 30-GEV. (IN RUSSIAN)

Aleksandrov, Yu.A. ; Baranov, S.S. ; Belousov, A.S. ; et al.

Yad.Fiz. 32 (1980) 651-658, 1980.

Inspire Record 159787 DOI 10.17182/hepdata.18966

None

6 data tables

Table 1

SIG OBTAINED FROM INTEGRATION OF D(SIG)/D(T).

Table 2

No description provided.

Table 3

No description provided.

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A Study of the Reactions K0(L) p --> Lambda pi+, Lambda pi+ pi0 and Sigma0 pi+ in the Center-Of-Mass Energy Range 1490-MeV-1700-MeV

The Bologna-Edinburgh-Glasgow-Pisa-Rutherford collaboration Bertanza, L. ; Cameron, W. ; Capiluppi, P. ; et al.

Nucl.Phys.B 110 (1976) 1-24, 1976.

Inspire Record 108723 DOI 10.17182/hepdata.35768

K L 0 p interactions were studied in the CERN 2m H 2 bubble chamber in the c.m. energy range 1490–1700 MeV. The experimental details are described. Results are presented on the final states Λπ + , Σ 0 π + and Λπ + π 0 . The effect of these data on a recent partial-wave analysis of the two-body states is examined.

26 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

KL --> 3PI USED TO MEASURE ABSOLUTE CROSS SECTIONS AT 530 MEV/C.

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Study of the Reaction K0(L) p --> K0(s) p in the Center-of-Mass Energy Range 1490-MeV-1700-MeV

The Bologna-Edinburgh-Glasgow-Pisa-Rutherford collaboration Bigi, A. ; Cameron, W. ; Capiluppi, P. ; et al.

Nucl.Phys.B 110 (1976) 25-39, 1976.

Inspire Record 108465 DOI 10.17182/hepdata.35717

Experimental results on the K L 0 p → K S 0 p reaction at 11 laboratory momenta between 300 and 800 MeV/ c are presented. The data are used to discriminate among the various sets of phase shifts for K + N scattering in the I = 0 state.

14 data tables

Table 1

STATISTICAL ERRORS ONLY. CROSS SECTIONS ARE NORMALIZED RELATIVE TO THE PI+ LAMBDA EVENTS - SEE THE RECORD OF L. BERTANZA ET AL., NP B110, 1 (1976).

Table 2

No description provided.

Table 3

No description provided.