The
Fermilab Single Arm Spectrometer Group
collaboration
Ayres, D.S.
;
Diebold, R.
;
Maclay, G.J.
;
*et al. *

Phys.Rev.D 15 (1977) 3105, 1977.

https://inspirehep.net/literature/110409
Inspire Record
110409
DOI
10.17182/hepdata.24653
https://doi.org/10.17182/hepdata.24653
The differential cross sections for the elastic scattering of π+, π−, K+, K−, p, and p¯ on protons have been measured in the t interval -0.04 to -0.75 GeV2 at five momenta: 50, 70, 100, 140, and 175 GeV/c. The t distributions have been parametrized by the quadratic exponential form dσdt=Aexp(B|t|+C|t|2) and the energy dependence has been described in terms of a single-pole Regge model. The pp and K+p diffraction peaks are found to shrink with α′∼0.20 and ∼0.15 GeV−2, respectively. The p¯p diffraction peak is antishrinking while π±p and K−p are relatively energy-independent. Total elastic cross sections are calculated by integrating the differential cross sections. The rapid decline in σel observed at low energies has stopped and all six reactions approach relatively constant values of σel. The ratio of σelσtot approaches a constant value for all six reactions by 100 GeV, consistent with the predictions of the geometric-scaling hypothesis. This ratio is ∼0.18 for pp and p¯p, and ∼0.12-0.14 for π±p and K±p. A crossover is observed between K+p and K−p scattering at |t|∼0.19 GeV2, and between pp and p¯p at |t|∼0.11 GeV2. Inversion of the cross sections into impact-parameter space shows that protons are quite transparent to mesons even in head-on collisions. The probability for a meson to pass through a proton head-on without interaction inelastically is ∼20% while it is only ∼6% for an incident proton or antiproton. Finally, the results are compared with various quark-model predictions.

31
data tables

No description provided.

No description provided.

No description provided.

The
Fermilab Single Arm Spectrometer Group
collaboration
Anderson, R.L.
;
Anelli, E.F.
;
Ayres, D.S.
;
*et al. *

Phys.Rev.Lett. 37 (1976) 1025, 1976.

https://inspirehep.net/literature/108810
Inspire Record
108810
DOI
10.17182/hepdata.21092
https://doi.org/10.17182/hepdata.21092
A comparison of K±p and p±p elastic scattering is made for incident energy 50 to 175 GeV. Average values of 0.19±0.04 and 0.11±0.02 GeV2 were found for the invariant-momentum-transfer values of the Kp and pp crossover points, respectively.

1
data table

The
Fermilab Single Arm Spectrometer Group
collaboration
Ayres, D.S.
;
Diebold, Robert E.
;
Maclay, G.J.
;
*et al. *

Phys.Rev.Lett. 37 (1976) 548, 1976.

https://inspirehep.net/literature/108238
Inspire Record
108238
DOI
10.17182/hepdata.21073
https://doi.org/10.17182/hepdata.21073
The ratio of π+p to pp elastic scattering is found to be smoothly varying over the range −t=0.03 to 0.4 GeV2. It is well fitted by a single exponential, indicating the forward behavior must be quite similar for the two reactions.

1
data table

ACTUALLY THE DATA ARE THE EXPONENTIAL SLOPE OF THE RATIO OF D(SIG)/DT FOR THE TWO REACTIONS.