Fleury, P.
PBAR P --> K- K+
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Determination of the electric and magnetic form-factors of the proton in the timelike region

Bardin, G. ; Burgun, G. ; Calabrese, R. ; et al.
Nucl.Phys.B 411 (1994) 3-32, 1994.
Inspire Record 376134 DOI 10.17182/hepdata.32865

The s dependence of the electromagnetic proton form factors in the time-like region has been determined from the threshold ( s = 4 M p 2 ) up to s = 4.2 GeV 2 . Data were collected in a dedicated experiment performed at the LEAR antiproton ring at CERN, increasing by one order of magnitude the available statistics. Total and differential cross section of the p p → e − e + reaction have been measured. The electric and magnetic form factors are found to have comparable value. The observed form factor shows a clear steep s dependence close to the threshold.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of the anti-Proton-Proton Annihilation Cross-Section Into pi+ pi- Or K+ K- at 300-MeV/c

Bassompierre, G. ; Schneegans, M.A. ; Binder, G. ; et al.
Lett.Nuovo Cim. 20 (1977) 29-33, 1977.
Inspire Record 125074 DOI 10.17182/hepdata.37409

None

1 data table
Table 1

ANNIHILATION INTO CHARGED PION OR KAON PAIRS. THE SEPARATE CROSS SECTIONS FOR PIONS AND KAONS ARE CALCULATED ASSUMING SIG(K+K-)/SIG(PI+PI-) IS 0.33 +- 0.05 FROM INTERPOLATION OF OTHER EXPERIMENTS.


A measurement of anti-p p ---> pi+ pi- and anti-p p ---> k- k+ for small values of t and u at 3 and 4 gev/c

Brabson, A. ; Calvelli, G. ; Cittolin, S. ; et al.
Phys.Lett.B 42 (1972) 287-290, 1972.
Inspire Record 85008 DOI 10.17182/hepdata.28189

We have measured with good statistics the differential cross section for p p →π + π − , K + K − around 0°. Our data and previous results show that the s -dependence of dσ/d t has a value compatible with the appropriate baryon exchange.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Anti-p p annihilation into pi+ pi- and k+ k- at 5 gev/c

Chabaud, V. ; Eide, A. ; Lehmann, P. ; et al.
Phys.Lett.B 41 (1972) 209-212, 1972.
Inspire Record 75628 DOI 10.17182/hepdata.5626

The differential cross-sections for the annihilation processes p p→π − π + and p p→K − K + have been measured at an incident laboratory momentum at 5 GeV/ c . Strong backward and forward peaks are observed in the π + π − differential cross-sections while the K + K − cross-section is shown to have a peak only for K − going forward. The annihilation cross-sections are compared with the cross-sections for the crossed channel backward processes π ± p→p π ± and K ± p→pK ± .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Elastic scattering and two-body annihilations at 5 gev/c

Eide, A. ; Lehmann, P. ; Lundby, A. ; et al.
Nucl.Phys.B 60 (1973) 173-220, 1973.
Inspire Record 83926 DOI 10.17182/hepdata.7885

We present results of measurements of K ± p and p p elastic scattering and of the annihilation reactions p p →π + π − and p p → K + K − at an incident laboratory momentum of 5 GeV/ c . Nearly complete angular distributions were obtained. Results are also presented for π -meson proton elastic scattering in the momentum transfer ranges 2 < − t < 8 (GeV/ c ) 2 (for π + ) and 0.16 < − t < 7 (GeV/ c ) 2 (for π − ). All measurements were done in one experimental geometry. The measured differential cross sections range from 10 to 10 −5 mb/(GeV/ c ) 2 .

14 data tables
Table 1

-U = T + 8.486 GEV**2.

Table 2

THE DATA FOR -T = 7.31 TO 8.45 GEV**2 WERE NORMALIZED TO OTHER EXPERIMENTS.

Table 3

-U = T + 8.304 GEV**2.

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Anti-Proton-Proton Annihilation Into pi+ pi- and K+ K- at 6.2-GeV/c

Buran, T. ; Eide, A. ; Helgaker, P. ; et al.
Nucl.Phys.B 116 (1976) 51-64, 1976.
Inspire Record 110027 DOI 10.17182/hepdata.35565

The angular distributions for the two annihilation channels p ̄ p →π + π − and p ̄ p → K + K − have been measured at 6.2 GeV/ c . The two-pion channel shows peripheral peaks for π + and π − going forward, and the two-kaon channel shows a peripheral peak for the K − going forward. The results have been compared with the line-reversed elastic backward scattering reactions and also with a constituent interchange model.

2 data tables
Table 1

S = 13.546 GEV**2, T+U = -11.746 GEV**2, KINEMATIC LIMITS: -T = 0.063 AND 11.683 GEV**2.

Table 2

S = 13.546 GEV**2, KINEMATIC LIMITS: -T = 0.036 AND 11.262 GEV**2.