PBAR P --> PBAR P
[2.0, 5.0]
Max results
Sort by Reverse order

Showing 10 of 64 results

$K^- p$ and $\bar{p} p$ Elastic Scattering at 10.1-{GeV}/$c$

Berglund, A. ; Buran, T. ; Carlson, P.J. ; et al.
Nucl.Phys.B 176 (1980) 346-354, 1980.
Inspire Record 133174 DOI 10.17182/hepdata.34457

The differential cross sections for K − p and p p elastic scattering have been measured over the range of four-momentum transfer squared 0.18<− t <3.3 (GeV/ c ) 2 . The K − p data decrease smoothly as a function of − t , whereas, the p p data shows a break at − t = 0.6 (GeV/ c ) 2 followed by a fast drop to − t ≅ 1.6 (GeV/ c ) 2 where the differential cross section levels off and stays constant out to − t = 3 (GeV/ c ) 2 .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


$\bar{p} p$ Elastic Scattering for Incident Momenta Between 1.0 and 2.50 BeV/c

Barish, B. ; Fong, D. ; Gomez, R. ; et al.
Phys.Rev.Lett. 17 (1966) 720-722, 1966.
Inspire Record 944917 DOI 10.17182/hepdata.203

None

3 data tables
Table 1

'1'. '2'. '3'. '4'. '5'.

Table 2

No description provided.

Table 3

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.


Anti-Proton-Proton Elastic Scattering at 6.2-GeV/c

Buran, T. ; Eide, A. ; Helgaker, P. ; et al.
Nucl.Phys.B 97 (1975) 11, 1975.
Inspire Record 99557 DOI 10.17182/hepdata.35778

Antiproton-proton elastic scattering data at 6.2 GeV/ c in the range 0.3 (GeV/ c ) 2 ⩽ − t ⩽ 10.0 (GeV/ c ) 2 is presented. The experiment, using spark chambers and proportional chambers, was performed at the CERN Proton Synchroton.

1 data table
Table 1

No description provided.


Anti-Proton-Proton Total Elastic Cross-Sections in the T and U Regions (0.69-GeV/c to 2.43-GeV/c)

Coupland, M. ; Eisenhandler, E. ; Gibson, W.R. ; et al.
Phys.Lett.B 71 (1977) 460-464, 1977.
Inspire Record 121087 DOI 10.17182/hepdata.27503

Antiproton-proton total elastic cross sections at 21 incident momenta in the range 0.69 to 2.43 GeV/ c have been deduced by combining p̄p elastic differential cross sections over a c.m. angular range −0.95 ⩽ cos θ ∗ ⩽ 0.93 with forward elastic cross sections derived from recent real-part measurements and p̄p total cross sections. Two bumps are observed, at M 1 ⋍ 2.155 and M 2 ⋍ 2.345 GeV /c 2 , having widths of Г 1 ∼ 0.135 and Г 2 ∼ 0.135 GeV /c 2 . Corresponding structures in other p̄p reaction channels are discussed.

1 data table
Table 1

Axis error includes +- 4/4 contribution.


Anti-p p and p p Forward Elastic Scattering Between 4-GeV/c and 10-GeV/c

Jenni, P. ; Baillon, P. ; Declais, Y. ; et al.
Nucl.Phys.B 129 (1977) 232-252, 1977.
Inspire Record 120467 DOI 10.17182/hepdata.35255

Differential cross sections have been measured in the region of small forward angles (between 0 and ∼40 mrad) for the elastic scattering reactions pp → pp at 4.2, 7.0 and 10.0 GeV /c and p p → p p at 4.2, 6.0, 8.0 and 10.0 GeV /c . The maximum momentum transfer is ∼0.025 GeV 2 at the lowest and ∼0.10 GeV/c at the highest incident momentum. Values of the slope and the real part of the forward scattering amplitude of the above reactions have been derived; the values obtained are in good agreement with dispersion relations.

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

More…

Anti-p p elastic scattering at 2.33 gev/c

Crawley, H.B. ; Kernan, W.J. ; Ogino, F. ;
Phys.Rev.D 8 (1973) 2781-2784, 1973.
Inspire Record 93330 DOI 10.17182/hepdata.22080

The differential scattering cross section is presented for p¯p elastic scattering at an incident laboratory momentum of 2.33 GeV/c based upon 11 758 events. The experiment was performed at the Brookhaven National Laboratory using the 31-inch hydrogen bubble chamber and an electrostatically separated beam. The attempts to fit limited regions of the data are presented for different parametrizations. The parametrization which corresponds to two coherent interfering exponentials successfully reproduces a very large t region for the scattering.

1 data table
Table 1

No description provided.


Anti-p p elastic scattering at 2.85 gev/c

Crawley, H.B. ; Hafen, Elizabeth S. ; Kernan, W.J. ;
Phys.Rev.D 8 (1973) 2012-2015, 1973.
Inspire Record 93404 DOI 10.17182/hepdata.22063

p¯p elastic scattering at an incident beam momentum of 2.85 GeV/c is analyzed using 18 412 events. The simple exponential parametrization of the diffraction peak is found to be a poor representation of the data. Two other parametrizations are tried and the estimates of dσdt at t=0 and of the slope of the diffraction peak are found to differ significantly between various parametrizations. It is found that two coherent interfering exponentials are able to represent the differential cross section over the range 0.04≤|t|≤1.8 (GeV/c)2 with a χ2 probability of approximately 40%.

1 data table
Table 1

No description provided.


Anti-p p elastic scattering in the t-meson region

Kalbfleisch, G.R. ; Strand, R.C. ; Vanderburg, V. ;
Nucl.Phys.B 30 (1971) 466-476, 1971.
Inspire Record 68593 DOI 10.17182/hepdata.33324

We have made improved measurements of 43.8 ± 0.8, 41.3 ± 0.4 and 39.3 ± 0.8 mb for the p p elastic cross sections at 1.11, 1.33 and 1.52 GeV/ c laboratory momenta respectively. Sharp forward peaks in the differential cross sections with broad secondary maxima agree with previous observations [3–6]. The forward differential cross sections are (11 ± 3)% above the optical point in agreement with real amplitudes extended from lower momenta using dispersion relations [7]. The elastic cross sections do not show any structure in the s -channel. Backward differential cross sections show the onset of a “third diffraction peak” but no evidence for other structure in agreement with earlier experiments [6, 13].

5 data tables
Table 1

STATISTICAL PLUS SYSTEMATIC ERRORS.

Table 2

STATISTICAL PLUS SYSTEMATIC ERRORS.

Table 3

COUNTS WERE MULTIPLIED BY 1.000 TO GET THESE.. TOTAL NUMBER EVENTS= 543. READ FROM GRAPH.

More…

Anti-p-p backward elastic scattering from 0.7 to 2.16 gev/c

Yoh, J.K. ; Barish, B.C. ; Nicholson, H. ; et al.
Phys.Rev.Lett. 23 (1969) 506-510, 1969.
Inspire Record 56393 DOI 10.17182/hepdata.3399

Elastic scattering of p¯ on p has been studied for cosθc.m. between -0.88 and -1.0 and Plab(p¯) between 0.70 and 2.16 GeV/c. The momentum dependence of the cross section shows a sharp dip at 0.9 GeV/c and a broad peaking around 1.4 GeV/c. The possibility of the peak resulting from direct formation of boson resonances has been studied. Alternatively, a diffraction model agrees qualitatively with our data and other elastic data at different angles.

7 data tables
Table 1

'1'. '2'. '3'.

Table 2

No description provided.

Table 3

No description provided.

More…