HEPData Search

Showing 10 of 356 results

Production of the g(1640) Meson in pi p Interactions at 6 GeV/c

Crennell, D.J. ; Karshon, U. ; Lai, K.W. ; et al.

Phys.Lett.B 28 (1968) 136-139, 1968.

Inspire Record 54727 DOI 10.17182/hepdata.29107

We present the results of a spin determination of the g 1 − (1640) meson from an analysis of its dipion decay mode (π − π 0 ), and find that spin three (or maybe greater) is favored [1,2]. We also report on the observation of an isospin one KK̄ enhancement at 1640 MeV which is consistent with a new decay mode of the g meson. A relative branching ratio of (K K ̄ /ππ) = 8 ± 3 8 % is obtain from our analysis.

2 data tables

Table 1

The values of the cross sections were presented for reactions with KS finalstates for visible KS decays only.

Table 2

The cross section value is corrected for invisible KS decay.

Differential cross-sections for elastic scattering of positive kaons on protons in the momentum range 0.9 to 1.9 gev/c

Charles, B.J. ; Cowan, I.M. ; Edwards, T.R.M. ; et al.

Phys.Lett.B 40 (1972) 289-292, 1972.

Inspire Record 75720 DOI 10.17182/hepdata.28271

None

1 data table

Table 1

No description provided.

The Reaction anti-p p --> 3 pi- 3 pi+ Between 1.09-GeV/c and 1.44-GeV/c and the Effect of pi pi Phase Shifts

Gay, J.B. ; Jeanneret, J.B. ; Bogdanski, M. ; et al.

Nuovo Cim.A 31 (1976) 593, 1976.

Inspire Record 2243 DOI 10.17182/hepdata.37696

Experimental results for the cross-sections, the effectivemass distributions, the angular distributions and correlations are presented for the reaction\(\bar p\)p → 3π−3π+. All the multipion mass distributions and the ππ angular correlations are described in terms of a final-state interaction model including theδ00 andδ11 ππ phase shifts, as well as an A2 effect.

2 data tables

Table 1

No description provided.

Table 2

INCOHERENT BRIET-WIGNER FIT TO 3PI- 3PI+ CHANNEL.

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.

More…

The Applicability of Zweig's Rule to anti-p p Annihilations at 3.6-GeV/c

Donald, R.A. ; Edwards, D.N. ; Houlden, M. ; et al.

Phys.Lett.B 61 (1976) 210-212, 1976.

Inspire Record 113109 DOI 10.17182/hepdata.27692

The final states øππ and øKK̄ arising from p̄p annihilations at 3.6 GeV/ c have been studied. The results are in agreement with Zweig's rule contrary to what is observed in high energy pp collisions.

1 data table

Table 1

No description provided.

anti-Proton-Proton Annihilations Between 1.5-GeV/c and 2.0-GeV/c: Final States with at Least One K0(L) Meson

Vuillemin, V. ; Gailloud, M. ; Rosselet, P. ; et al.

Nuovo Cim.A 33 (1976) 133, 1976.

Inspire Record 3307 DOI 10.17182/hepdata.37675

Antiproton-proton annihilations into final states containing one or two K10-mesons are studied on the basis of 450 000 pictures from the CERN 2 m HBC. The experiment covers the domain of antiproton incident momentum from 1.50 to 2.04 GeV/c. The resonance production rates are computed for the most abundant channels. The K10K10 threshold effect is explained through the inelastic channel π+π− → K10K10. The decay modes D, E → δ±(975)π∓, δ±(975) → K10K± are pointed out. The strange mesons C and C′ are observed in these annihilations and come mainly from the two-body channels \(p\bar p\) → (C, C′)K and\(p\bar p\) → (C, C′)K*.

9 data tables

Table 1

RESONANCE FRACTIONS FOR AP P --> KS (K+ PI- + K- PI+).

Table 2

RESONANCE FRACTIONS FOR AP P --> KS (K+ PI- + K- PI+) PI0.

Table 3

RESONANCE FRACTIONS FOR AP P --> KS KS PI+ PI-.

More…

Inclusive phi Production in pi- p Interactions at 16-GeV/c

The Bari-Bonn-CERN-Daresbury-Glasgow-Liverpool-Milan-Vienna collaboration Ghidini, B. ; Navach, F. ; Palano, A. ; et al.

Phys.Lett.B 68 (1977) 186, 1977.

Inspire Record 119248 DOI 10.17182/hepdata.48929

Inclusive φ production is studied in π − p collisions at 16 GeV/ c . The φ cross section for Feynman variable x φ > 0.2 is found to be (15.5 ± 3.6) μb. This leads to an extrapolated cross section of (29.9 ± 7.0) μb for x φ > 0.0. Fitting the momentum transfer squared distribution of the φ to the form e −bp 2 T gives an average slope of b = (2.4 ± 0.3) (GeV/ c −2 for x φ > 0.5.

4 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

DATA OBTAINED FROM FIGURE BY A.A. LEBEDEV.

More…

Production and Decay of a High Mass I = 3/2 Baryon Enhancement in 10.3-GeV/c pi+ p Interactions

Zemany, P.D. ; Beaufays, J. ; Goddard, M.C. ; et al.

Nucl.Phys.B 137 (1978) 365-376, 1978.

Inspire Record 5279 DOI 10.17182/hepdata.35058

A high-mass Δ resonance is observed in several final states from π + p interactions at 10.3 GeV/ c . We obtain fitted mass and width values for this structure of 1871 ± 22 MeV and 205 ± 43 MeV, respectively. The branching ratios for decays to π + p, p π + π 0 , n π + π + and Σ + K + are found to be 0.48 ± 0.15, 0.26 ± 0.07, 0.24 ± 0.07 and 0.03 ± 0.01, respectively. The Δϱ, Δω differential cross sections and the ϱ 0 density matrix elements are examined.

3 data tables

Table 1

DEL(1950B) (OR DEL(1880B)) FITTED WITH BRIET-WIGNER RESONANCE AND POLYNOMIAL BACKGROUND.

Table 2

No description provided.

Table 3

No description provided.

Strange Particle Cross-Sections from pi+ p Interactions at 10.3-GeV/c

Goddard, M.C. ; Gilbert, D. ; Key, A.W. ; et al.

Phys.Rev.D 16 (1977) 7, 1977.

Inspire Record 5358 DOI 10.17182/hepdata.24450

Cross sections are presented for production of final states with two strange particles from π+p interactions at 10.3 GeV/c in a 31.1-event/μb bubble-chamber experiment.

2 data tables

Table 1

No description provided.

Table 2

No description provided.