Charlton, G.
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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
Table 1

No description provided.

Table 2

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

Table 3

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

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Spin Parity Analysis of the rho (1.71) Resonance Produced in 9.1-GeV/c pi- p Interactions

Armenise, N. ; Fogli Muciaccia, M.T. ; Silvestri, A. ; et al.
Lett.Nuovo Cim. 14 (1975) 177-183, 1975.
Inspire Record 103792 DOI 10.17182/hepdata.37443

None

1 data table
Table 1

FOUR PION RESONANCE CALLED RHO(1.71) BY AUTHORS. DECAY IS CONSISTENT WITH 100 PCT <RHO0 RHO-> MODE.


Search for Narrow Resonances in e+ e- Annihilation in the Mass Region 3.2-GeV to 5.9-GeV

Boyarski, A. ; Breidenbach, Martin ; Bulos, F. ; et al.
Phys.Rev.Lett. 34 (1975) 762, 1975.
Inspire Record 100594 DOI 10.17182/hepdata.21228

We have searched the mass region 3.2 to 5.9 GeV for evidence of narrow resonances in e+e−→hadrons. We find no evidence for any such resonances other than the ψ(3695) in this region with a sensitivity ranging from about 12 to 45% of the integrated cross section of the ψ(3695). The more stringent bounds apply to resonances of a few MeV width, while the looser bounds apply to resonances of up to 20 MeV width.

1 data table
Table 1

EXTREAMLY GOOD DATA, MUST BE ASCED FROM AUTHORS.


rivet Analysis
Total Cross-Section for Hadron Production by electron-Positron Annihilation Between 2.4-GeV and 5.0-GeV Center-Of-Mass Energy

Augustin, J.E. ; Boyarski, A. ; Breidenbach, Martin ; et al.
Phys.Rev.Lett. 34 (1975) 764, 1975.
Inspire Record 100592 DOI 10.17182/hepdata.21227

The total cross section for hadron production by e+e− annihilation has been measured at center-of-mass energies between 2.4 and 5.0 GeV. Aside from the very narrow resonances ψ(3105) and ψ(3695), the cross section varies between 32 and 17 nb over this region with structure in the vicinity of 4.1 GeV.

2 data tables
Table 1

No description provided.

Table 2

MEAN CHARGED MULTIPLICITY. ERRORS ARE STATISTICAL ONLY.


Dimuon Production by Neutrons

Knapp, B. ; Lee, Won-Yong ; Leung, P. ; et al.
Phys.Rev.Lett. 34 (1975) 1044, 1975.
Inspire Record 2108 DOI 10.17182/hepdata.21935

A very narrow resonance with a mass of 3.1 GeV/c2 is observed in the reaction n+Be→μ++μ−+X. The total cross section for this process, as well as its P⊥2 and x distribution, are given.

1 data table
Table 1

The cross section per nucleon times the branching ratio.


Photoproduction of Narrow Resonances

Knapp, B. ; Lee, Won-Yong ; Leung, P. ; et al.
Phys.Rev.Lett. 34 (1975) 1040, 1975.
Inspire Record 2411 DOI 10.17182/hepdata.21280

A very narrow resonance with a mass of 3.105 GeV/c2 is observed in the reaction γ+Be→μ++μ−+X. The total cross section for this process, as well as its t distribution, is given.

1 data table
Table 1

THIS IS CROSS SECTION PER BERYLLIUM NUCLEUS ASSUMING ONLY COHERENT OR QUASI-ELASTIC SCATTERING FROM A SINGLE NUCLEON. FORWARD DIFFERENTIAL CROSS SECTIONS QUOTED IN TABLE 1 OF T. NASH ET AL., PRL 36, 1233 (1976).


Neutral K, Lambda and anti-Lambda Production in K- p and K+ p Interactions at 32-GeV/c

The French-Soviet & CERN-Soviet collaborations Beilliere, P. ; Cochet, Christian ; Dumont, J J ; et al.
Nucl.Phys.B 90 (1975) 20-34, 1975.
Inspire Record 2057 DOI 10.17182/hepdata.32067

Inclusive cross sections and one-particle inclusive spectra are given for neutral K, Λ and Λ produced in K − p and K + p interactions at 32 GeV/ c in the 4.5 m Mirabelle hydrogen bubble chamber at the Serpukhov accelerator. Cross sections for associated production are also given, and the energy dependences of the cross sections and of the x distributions in the central and in the fragmentation regions are discussed.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Analysis of Two Prong Events in anti-Proton-Proton Interactions at 5.7-GeV/c

Braun, Henri ; Gerber, J.-P. ; Maurer, G. ; et al.
Nucl.Phys.B 95 (1975) 481-502, 1975.
Inspire Record 2106 DOI 10.17182/hepdata.31929

A study of elastic scattering, one-pion production and annihilation reactions in p p interactions at 5.7 GeV/ c was carried out, from the two-prong events, obtained in the hydrogen bubble chamber exposed at CERN.

2 data tables
Table 1

NUMBER OF EVENTS FOR -T<0.03 GEV**2 CALCULATED BY EXTRAPOLATION.

Table 2

No description provided.


Spin-Parity Analysis of Diffractive n --> p pi- and the Question of a Parity-Change Rule

Ansorge, R.E. ; Carter, J.R. ; Neale, W.W. ; et al.
Phys.Rev.D 13 (1976) 1835, 1976.
Inspire Record 99426 DOI 10.17182/hepdata.24786

A spin-parity analysis is performed of the low-mass (≤ 1.75 GeV/c2) pπ− system in diffractive np→(pπ−)p using new data at 13 GeV/c and 20 GeV/c. In the context of a Deck-plus-resonances model a good fit to the pπ− angular moments is found only if the Gribov-Morrison parity-change rule does not hold and spin states up to j=52 are included. In particular the presence of a considerable fraction of spin-parity ½− state is indicated.

1 data table
Table 1

DECK MODEL PLUS RESONANCES FIT TO DIFFRACTIVE EVENTS.


Production of gamma rays in K- p and K+ p Interactions at 32-GeV/c

The French-Soviet & CERN-Soviet collaborations Beilliere, P. ; Cochet, Christian ; Dumont, J J ; et al.
Nucl.Phys.B 91 (1975) 219-231, 1975.
Inspire Record 2852 DOI 10.17182/hepdata.6709

Inclusive cross sections and longitudinal momentum distributions are presented for γ rays produced in K − p and K + p interactions at 32 GeV/c in the 4.5 m Mirabelle hydrogen bubble chamber at the Serpukhov accelerator. The average longitudinal and transverse momentum of neutral pions and the average π 0 multiplicity ▪ 〈 n π 0〉 are estimated. It is found that 〈 n π 0〉 is an increasing function of the number of charged prongs.

2 data tables
Table 1

No description provided.

Table 2

No description provided.