Positron-Proton Scattering

Browman, A. ; Liu, F. ; Schaerf, C. ;
Phys.Rev. 139 (1965) B1079-B1085, 1965.
Inspire Record 944961 DOI 10.17182/hepdata.26686

The importance of two-photon exchange in elastic electron-proton scattering was investigated by measuring the ratio of positron-proton to electron-proton scattering. Four-momentum transfers as large as 0.756 (BeV/c)2 (19.5 F−2) were used. The data indicate that two-photon effects are (4.0±1.5)% larger than those predicted by the radiative corrections at the highest momentum transfers attained in these experiments. The two-photon corrections predicted using a static charge distribution fit the data well at lower momentum transfers and forward angles, but appear to be small at higher momentum transfers and backward angles.

10 data tables

Data recalculated from the data of Yount and Pine.

Data recalculated from the data of Yount and Pine. RUN_1 and RUN_2 of the Yount and Pine experiment were separated by large time interval.

Data recalculated from the data of Yount and Pine.

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Negative pion photoproduction off neutron at 180$sup 0$ in the energy range between 300 and 1200 MeV

Takasaki, F. ;
INSJ-126, 1971.
Inspire Record 1085257 DOI 10.17182/hepdata.40522

None

50 data tables

No description provided.

No description provided.

No description provided.

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MEASUREMENT OF P P ---> P X BETWEEN 50-GEV/C AND 400-GEV/C.

Abe, K. ; De Lillo, T. ; Robinson, B. ; et al.
Phys.Rev.Lett. 31 (1973) 1527-1530, 1973.
Inspire Record 81796 DOI 10.17182/hepdata.50301

We present measurements of the invariant cross section for the inclusive reaction p+p→p+X in the region 0.14<|t|<0.38 GeV2, 100<s<750 GeV2, and 0.80<x<0.93.

1 data table

The cross sections are fitted by the formula CONST(C=A)*EXP(SLOPE*T)*(1+CO NST(C=B)/SQRT(S)).


Production of high transverse momentum particles in p p collisions in the central region at the CERN ISR

The British-Scandinavian ISR collaboration Alper, B. ; Boggild, H. ; Jarlskog, G. ; et al.
Phys.Lett.B 44 (1973) 521-526, 1973.
Inspire Record 85256 DOI 10.17182/hepdata.28095

The inclusive production al all charged particles of transverse momentum p T between 1.5 and 4.4 GeV/ c at centre of mass angles 90° and 59.4° from p-p-collisions with √ s = 44 and 53 GeV has been measured. No strong energy dependence is observed for these transverse momenta.

6 data tables

Errors are statistical only.

Errors are statistical only.

Errors are statistical only.

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Determination of Triple Regge Couplings from a Study of the Reaction p p -> p X between 50-GeV and 400-GeV

Abe, K. ; De Lillo, T. ; Robinson, B. ; et al.
Phys.Rev.Lett. 31 (1973) 1530, 1973.
Inspire Record 82045 DOI 10.17182/hepdata.21356

We present an analysis, in the framework of the triple Regge model, of our recent experimental results on the reaction p+p→p+X between 50 and 400 GeV.

2 data tables

The cross sections is fitted in the framework of the triple Regge model. The symbols P and R in the (C=...) denote pomeron and reggeon, respectively. For fit I and II the authors used conventional trajectories alpha(P) = 1 +0.25*T, alpha(R) = 0.5 + T. Fit II is restricted to data with (1 - M(P=4)**2/S) > 0.84. In fit III they use alpha(R) = 0.2 + T for the RRP term. Fit IV is like fit I with additional fixed (pion pion P) term.

The cross sections is fitted in the farmework of the triple Regge model. The symbols P and R in teh (C=...) denote pomeron and reggeon, respectively. CONST(C=C) and SLOPE are from the replacement of the RRP term by the exponential one : CONST(C=C)*(SLOPE*(1-x)). See text for detail.


$pp$ Interactions at 300-GeV/c: Measurement of the Charged Multiplicity, Total and Elastic Cross-Sections

Firestone, A. ; Davidson, V. ; Lam, D. ; et al.
Phys.Rev.D 10 (1974) 2080, 1974.
Inspire Record 1242 DOI 10.17182/hepdata.25012

In a 35 000-picture exposure of the 30-in. hydrogen bubble chamber to a 300-GeV/c proton beam at the Fermi National Accelerator Laboratory, 10054 interactions have been observed. The measured total cross section is $40.68 \pm 0.55$ mb, the elastic cross section is $7.89 \pm 0.52$ mb, and the average charged-particle multiplicity for inelastic events is $8.S0 \pm 0.12$.

2 data tables

QUOTED ERRORS INCLUDE EFFECTS OF CORRECTIONS.

No description provided.


p p Interactions at 300-GeV/c: Gamma and Neutral Strange Particle Production

Sheng, A. ; Davidson, V. ; Firestone, A. ; et al.
Phys.Rev.D 11 (1975) 1733, 1975.
Inspire Record 90998 DOI 10.17182/hepdata.24935

In a 35 000-picture exposure of the Fermilab 30-in. hydrogen bubble chamber to a 300-GeV/c proton beam 1863 neutral V0's were measured. The inclusive cross sections for γ, Ks0, Λ0Σ0, and Λ¯0Σ¯0 are 257 ± 18 mb, 7.3 ± 0.6 mb, 3.6 ± 0.4 mb, and 1.0 ± 0.3 mb, respectively. The correlation with charged particles and other inclusive features are studied.

1 data table

No description provided.


Inclusive and Semiinclusive $\rho^0$ Production in $\pi^- p$ Interactions at 147-GeV/c.

Fong, D. ; Heller, M. ; Shapiro, A.M. ; et al.
Phys.Lett.B 60 (1975) 124-128, 1975.
Inspire Record 102526 DOI 10.17182/hepdata.27734

We present data on inclusive and semi-inclusive ϱ 0 production in 147 GeV/ c π − p interactions. We find a total cross section of 7.3 ± 1.3 mb. Most of this cross section is found in the lower topology events (⩽ 10 prongs), and in the central and forward rapidity regions. The P T 2 dependence of ϱ 0 production, 〈: n > ϱ 0 per event, and the ϱ 0 / π + ratios are also discussed.

1 data table

No description provided.


Neutron-Proton Elastic Scattering from 10-GeV/c to 70-GeV/c

Bohmer, V. ; Engler, J. ; Flauger, W. ; et al.
Nucl.Phys.B 91 (1975) 266-278, 1975.
Inspire Record 98395 DOI 10.17182/hepdata.32033

The neutron-proton elastic differential cross section has been measured for incident momenta between 10 and 70 GeV/c and for values of the momentum transfer squared between 0.1 and 2.8 (GeV/c) 2 . The forward peak and the break at about ∣ t ∣ = 1 (GeV/ c ) 2 are very similar to corresponding pp data.

2 data tables

No description provided.

No description provided.


Study of the Energy and Charged Multiplicity Dependence of Inclusive pi- Production in pi- p Interactions Up to Fermilab Energies

Morris, W. ; Oh, B.Y. ; Parker, D.L. ; et al.
Phys.Lett.B 56 (1975) 395-399, 1975.
Inspire Record 2113 DOI 10.17182/hepdata.27878

Using new data from 100 GeV c π − interactions, we find the energy dependence of the invariant cross-section in the target fragmentation (central) region to be consistent with an A + Bs − 1 2 (C + Ds − 1 4 ) behavior. The leading particle peak near x = + 1 exhibits a width in x which becomes smaller with increasing energy and an integrated cross section which is approximately energy independent.

1 data table

No description provided.