Robinson, R.W.
DSIG/DT
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Observation of three narrow neutral mesons in the vicinity of 950 mev

Cheshire, D.L. ; Jacobel, R.W. ; Lamb, R.C. ; et al.
Phys.Rev.Lett. 28 (1972) 520-523, 1972.
Inspire Record 75535 DOI 10.17182/hepdata.21441

In a scintillation-counter experiment, we have observed two narrow, neutral mesons in addition to the well-established η′ (958) in the reaction π−p→M0n at 2.4 GeVc. We observe a mass of 940.5 ± 1.7 MeV, Γ<10.4 MeV for the M0(940), and a mass of 962.9 ± 1.7 MeV, Γ<5.9 MeV for the δ0.

1 data table
Table 1

CROSS SECTION OVERALL UNCERTAINTY (APART FROM ETA PRODUCTION) ABOUT 30 PCT.


Dip structures in pi+ p ---> rho+ p at 1.55-1.84 gev/c

Williamson, Y. ; Fung, S.Y. ; Kernan, A. ; et al.
Phys.Rev.Lett. 29 (1972) 1353-1356, 1972.
Inspire Record 75422 DOI 10.17182/hepdata.21440

Results of a high-statistics study of π++p→ρ++p at 1.55-1.84 GeVc are consistent with dominance of π and ω exchange close to threshold. A pronounced dip in ρ00sdσdt at −t≃0.4 GeV2 may be attributed to pion exchange with strong absorption.

9 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Energy dependence of the structure in high energy proton proton elastic scattering

Allaby, J.V. ; Diddens, A.N. ; Robinson, R.W. ; et al.
Phys.Lett.B 34 (1971) 431-434, 1971.
Inspire Record 69311 DOI 10.17182/hepdata.28522

The angular distribution of proton-proton elastic scattering has been measured for incident beam momenta of 10.0, 12.0, 14.2 and 24.0 GeV/ c over a range of laboratory scattering angles from 12 to about 140 mrad. The results are compared with the fourth power of the electromagnetic form of the proton.

1 data table
Table 1

No description provided.


Momentum transfer dependence of nucleon resonance production in proton proton collisions at 24 gev/c

Amaldi, U. ; Biancastelli, R. ; Bosio, C. ; et al.
Phys.Lett.B 34 (1971) 435-438, 1971.
Inspire Record 69310 DOI 10.17182/hepdata.28714

Nucleon resonance production in the two-body reaction p + p → p + N ∗ has been studied at 24 GeV/ c incident momentum for angles from 12 to 117 mrad by measuring proton momentum spectra from the elastic peak down to a momentum corresponding to a missing mass of about 2.6 GeV.

1 data table
Table 1

No description provided.