Study of a2 and a3 meson production in pi p collisions at 4.45 gev/c

Beketov, G.V. ; Zombkovskii, S.M. ; Konovalov, B.S. ; et al.
Yad.Fiz. 13 (1971) 765-771, 1971.
Inspire Record 69508 DOI 10.17182/hepdata.19293

None

1 data table

CROSS SECTIONS VERY SENSITIVE TO BACKGROUND SUBTRACTION.


Channel cross-sections of k- p reactions from 1.26 to 1.84 gev/c

de Bellefon, A. ; Berthon, A. ; Rangan, L.K. ; et al.
Nuovo Cim.A 7 (1972) 567-583, 1972.
Inspire Record 78277 DOI 10.17182/hepdata.37482

We present the results on total channel cross-sections obtained in the Saclay 180 l HBC exposed to a separated K− beam at Nimrod. The cross-sections for each channel are given at 13 incident K− momenta between 1.26 and 1.84 GeV/c.

1 data table

No description provided.


Study of 4pi system in the rho-prime(1710) meson mass region in the reaction pi- p ---> p pi+ pi- pi- pi0 at 4.5 gev/c momentum.

Kliger, G.K. ; Beketov, G.V. ; Grechko, V.E. ; et al.
Yad.Fiz. 19 (1974) 839-848, 1974.
Inspire Record 95146 DOI 10.17182/hepdata.19145

None

2 data tables

No description provided.

ALLOWING FOR 65 PCT BACKGROUND.


Resonance Production in the Reactions pi+ d --> p(s) p pi+ pi- and pi+ d --> p(s) p pi+ pi- pi0 at 11.7-GeV/c

Kemp, D. ; Lotts, A.P. ; Scarrott, S.M. ; et al.
Nuovo Cim.A 27 (1975) 155-173, 1975.
Inspire Record 102951 DOI 10.17182/hepdata.37719

Results are presented for the reactions (1) π+n→pπ+π−, (2) π+n→pπ+π−π0, at an incident pion beam momentum of 11.7 GeV/c. Both reactions show considerable resonance production. Reaction (1) is dominated by ρ0 and f0 production and there is evidence for the variation of the ρ00 width with momentum transfer. Decay angular distributions are presented for the dipion system observed in reaction (1). Reaction (2) shows the production of both dipion and tripion resonances and there is evidence for the associated production of\(\mathcal{N}\)-resonances with the dipion resonances.

4 data tables

No description provided.

DN/DT PLOTTED. ALL RESONANCES ARE DEFINED JUST BY MASS CUTS.

RHO0 MASS REGION OF DIPION SYSTEM. NUMERICAL VALUES TAKEN FROM TABLE 6.1 OF THE THESIS BY D. KEMP (DURHAM 1974).

More…

A Study of the Reactions pi+ d --> d pi+ pi- pi+ and pi+ d --> d pi+ pi- pi+ pi0 at 11.7-GeV/c

Kemp, D. ; Scarrott, S.M. ; Contri, R. ; et al.
Nuovo Cim.A 33 (1976) 369-386, 1976.
Inspire Record 114333 DOI 10.17182/hepdata.37673

The two coherent reactions π+d → dπ+π+π− and π+d → → dπ+π+π+π0 are studied in the 2 m DBC at the incoming momentum of 11.7 GeV/c. The production cross-sections are measured:σ=(0.37±±0.06) mb andσ=(0.24±0.05) mb respectively. The two reactions are analysed in the different LPS configurations. The dσ/dt′ distribution for the two reactions displays the same exp[−At′] shape withA⋍37 (GeV/c)−2 in both cases, thus indicating that the differential cross-sections are dominated by the deuteron form factor. The coherent inclastic interaction contains the channel π+d → θ0π+d with a cross-sectionσ==(20±5) µb and a signal for the B+-meson of about 12 µb. The four-pion masses display structures below 2 GeV/c.

2 data tables

No description provided.

No description provided.


Hadron-Proton Elastic Scattering at 50-GeV/c, 100-GeV/c and 200-GeV/c Momentum

Akerlof, C.W. ; Kotthaus, R. ; Loveless, R.L. ; et al.
Phys.Rev.D 14 (1976) 2864, 1976.
Inspire Record 3655 DOI 10.17182/hepdata.24693

Elastic scattering of hadrons on protons has been measured at momenta of 50, 100, and 200 GeV/c. The meson-proton scattering is found to be independent of momentum and meson type for −t>0.8 (GeV/c)2. The momentum dependence of the pp dip at −t=1.4 (GeV/c)2 was investigated. Slope parameters are given.

19 data tables

No description provided.

No description provided.

No description provided.

More…

Search for xi* Production in K- p Interactions at 2.87-GeV/c

Briefel, E. ; Gourevitch, S.A. ; Kirsch, L. ; et al.
Phys.Rev.D 16 (1977) 2706, 1977.
Inspire Record 118843 DOI 10.17182/hepdata.24494

Evidence is presented for production of Ξ* resonances, decaying into Ξπ, Ξ(1530)π, ΛK¯, and ΣK¯, in K−p interactions at 2.87 Gev/c. The data represent final combined results from a 30-events/μb hydrogen exposure and an 18-events/μb exposure in deuterium designed to study Ξ* production in the mass interval 1.46-2.07 GeV/c2. In addition to Ξ(1820) and Ξ(1940), signals have been observed at masses of 1630 MeV/c2 and 1860 MeV/c2 decaying into Ξ−π+ and YK¯, respectively. Reaction cross sections have been measured for all final states containing two visible signs of strangeness, and for the final states ΛK−K+ and Σ0K−K+.

4 data tables

CROSS SECTIONS ARISING FROM VARIOUS TOPOLOGIES.

K- P CROSS SECTIONS FROM DEUTERIUM TARGET EXPERIMENT. RESULTS ARE IN GOOD AGREEMENT WITH THE HYDROGEN DATA.

No description provided.

More…

Neutral Strange Particle Production in anti-Proton-Proton Reactions at 3.0-GeV/c

Jacobs, S.M. ; Kirsch, L.E. ; Moore, S.C. ; et al.
Phys.Rev.D 17 (1978) 1187, 1978.
Inspire Record 5857 DOI 10.17182/hepdata.24452

The reactions p¯p→V0+neutrals were studied in a multiparticle spectrometer at 3.0 GeV/c incident momentum, with a sensitivity of about 150 events/μb. Differential cross sections and polarization of the Λ¯ for the final states Λ¯(Λ) and Λ¯(Σ0) are reported and compared with theoretical models. Differential cross sections of the K0 in K0[K*(890)] and the Λ in Λ(Λ¯+Σ¯0) are also measured. Upper limits of a few μb MeV are obtained for the formation of narrow resonances decaying into V0+neutrals in the mass interval 2.74-2.80 GeV/c2.

5 data tables

FORWARD HEMISPHERE TOTAL CROSS SECTIONS NOT INCLUDING CHARGE CONJUGATE REACTIONS. CORRECTED FOR DECAY BRANCHING RATIOS AND FOR BACKGROUNDS.

No description provided.

No description provided.

More…

Study of K* (1780) in the Reaction K- p --> K- pi+ n at 6-GeV/c

Chung, S.U. ; Etkin, A. ; Flaminio, V. ; et al.
Phys.Rev.Lett. 40 (1978) 355-358, 1978.
Inspire Record 122473 DOI 10.17182/hepdata.20913

We observe a K−π+ state at 1786 ± 8 MeV with a width 95 ± 31 MeV in the reaction K−p→K−π+n at 6 GeV/c, from an experiment carried out at the Brookhaven National Laboratory multiparticle spectrometer.

1 data table

ERROR INCLUDES SYSTEMATIC NORMALIZATION UNCERTAINTY.


Analysis of the Reaction pi+ p --> p pi+ pi+ pi- at the Momentum of 3.1-GeV/c

Beketov, G.V. ; Ergakov, V.A. ; Zombkovsky, S.M. ; et al.
Yad.Fiz. 28 (1978) 1266-1274, 1978.
Inspire Record 136688 DOI 10.17182/hepdata.18986

None

2 data tables

FROM MAXIMUM LIKELIHOOD FIT TO PARAMETRIZATION OF RESONANCE PRODUCTION CHANNELS.

No description provided.