Ferbel, T.
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Elastic Scattering and Cross Sections in Antiproton-Proton Interactions at 3.3 and 3.7 BeV/c

Ferbel, T. ; Firestone, A. ; Sandweiss, J. ; et al.
Phys.Rev. 137 (1965) B1250-B1255, 1965.
Inspire Record 944963 DOI 10.17182/hepdata.466

The elastic, the pion-production, and the multipion-annihilation cross sections for antiproton-proton interactions at 3.28 and 3.66 BeV/c incident antiproton momenta have been measured. A comparison of the elastic interactions at 3.28 BeV/c with a purely-absorbing disc optical model gave a best value for the radius of interaction of 1.3 F. The real part of the forward scattering amplitude has been found to be less than 20% of the imaginary part. A study of the asymmetries in double elastic scatters yielded a value for a polarizing power of the hydrogen consistent with zero when averaged over production angles.

6 data tables match query
Table 1

No description provided.

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Single pion production and multiple pion annihilations in p−p interactions at 7 GeV/c

Ferbel, T. ; Firestone, A. ; Johnson, J. ; et al.
Nuovo Cim. 38 (1965) 12-18, 1965.
Inspire Record 1185177 DOI 10.17182/hepdata.37641

A preliminary study of single pion production with no annihilation and multiple pion annihilation in antiproton-proton interactions at 7 GeV/c indicates that the single pion production cross-section is 5.6±1.2mb, and the multipion annihilation cross-section is ∼24mb. Although there is strong evidence for resonance production in the one pion production channels, these states do not appear to be dominated by any single resonance. Resonance production in the annihilation channels is small compared to rates observed at lower energies.

1 data table match query
Table 1

No description provided.


Anti-p p elastic and charge exchange scattering at 230 mev

Kohno, H. ; Kaneko, S. ; Murata, Y. ; et al.
Nucl.Phys.B 41 (1972) 485-492, 1972.
Inspire Record 75157 DOI 10.17182/hepdata.6879

Reactions p p → p p and p p → n n were studied at the kinetic energy 230 MeV of incident p by using bubble chamber films. Total cross sections for both of the reactions were found to be 51.2 ± 1.6 mb and 9.1 ± 0.6 mb, respectively. Differential cross sections are well explained by the phenomenological theory given by Bryan and Phillips.

5 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Elastic scattering and polarisation in 3.0 and 3.6 GeV/c antiproton-proton collisions

Escoubès, B. ; Fedrighini, A. ; Goldschmidt-Clermont, Y. ; et al.
Phys.Lett. 5 (1963) 132-136, 1963.
Inspire Record 1389108 DOI 10.17182/hepdata.751

None

3 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


ELASTIC SCATTERING AND TOTAL CROSS-SECTIONS: RECENT EXPERIMENTAL RESULTS

Ekelof, T. ;
283-294, 1983.
Inspire Record 201990 DOI 10.17182/hepdata.1427

None

2 data tables match query
Table 1

No description provided.

Table 2

BEST ESTIMATE BASE ON THIS AND EARLIER MEASUREMENT ASSUMING RHO = 0.15.


Studies of $\bar{p} p \to \bar{n} n$ and $\bar{n} p$ Annihilation at Incident Momenta of 700-{MeV}/$c$ and 760-{MeV}/$c$

The Bombay-Chandigarh-Jammu-Tokyo collaboration Banerjee, S. ; Ganguli, S.N. ; Gurtu, A. ; et al.
Z.Phys.C 28 (1985) 163, 1985.
Inspire Record 217418 DOI 10.17182/hepdata.1974

Results are presented on the charge exchange reaction\(\bar pp \to \bar nn\) and\(\bar np\) annihilations from bubble chamber exposures to antiproton beam of momenta 700 and 760 MeV/c. The differential cross section of\(\bar pp \to \bar nn\) shows a forward spike followed by a clear dip bump structure. Total annihilation cross section of\(\bar np\) for average\(\bar n\) momentum of 700 MeV/c has been evaluated to be 55.4±2.2 mb. The multiplicity, Feynmanx andpT2 distributions for inclusive charged pions in\(\bar pp\) and\(\bar np\) annihilations are found to be similar. The emission of charged pions from\(\bar np\) annihilations are found to be consistent with thermodynamic models with temperature ∼110 MeV.

10 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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anti-p p Interactions at 2.32-GeV/c

Chen, C.K. ; Fields, T. ; Rhines, D.S. ; et al.
Phys.Rev.D 17 (1978) 42, 1978.
Inspire Record 5667 DOI 10.17182/hepdata.24405

A bubble-chamber experiment based on 304 000 events of p¯p interactions at 2.32 GeV/c is described. The film was automatically scanned and measured by the POLLY II system. Details of the data-analysis methods are given. We report results on cross sections for constrained final states, tests of C invariance, and inclusive pion and ρ0 multiplicity parameters for annihilation final states.

2 data tables match query
Table 1

Axis error includes +- 4/4 contribution.

Table 2

Axis error includes +- 4/4 contribution.


The Real Part of anti-p p Forward Elastic Scattering Amplitude at 0.7-GeV/c

Kaseno, H. ; Hamatsu, R. ; Kawano, K. ; et al.
Phys.Lett.B 61 (1976) 203-206, 1976.
Inspire Record 3400 DOI 10.17182/hepdata.27693

The differential cross sections of p p elastic scattering at 0.7 GeV/ c were obtained in the range 0.0018<| t |⩽0.0320 GeV 2 . From the interference between the Coulomb and the nuclear amplitude, the ratio of real to imaginary part of the forward nuclear amplitude was found to be +0.33±0.04.

3 data tables match query
Table 1

No description provided.

Table 2

No description provided.

Table 3

FIT FOR FORWARD NUCLEAR AMPLITUDE IN COULOMB INTERFERENCE REGION.


Real to Imaginary Ratio of the $\bar{p} p$ Forward Elastic Scattering Amplitude in the Momentum Range Between 180-{MeV}/$c$ and 590-{MeV}/$c$

Bruckner, W. ; Dobbeling, H. ; Guttner, F. ; et al.
Phys.Lett.B 158 (1985) 180-185, 1985.
Inspire Record 213992 DOI 10.17182/hepdata.30392

The real-to-imaginary ratio of the p p forward elastic scattering amplitude has been measured at the LEAR facility of CERN by the Coulomb-nuclear interference method at seven beam momenta between 181 and 590 MeV/ c . The ratio is positive at 590 MeV/ c , becomes negative below 500 MeV/ c , reaches a minimum at 260 MeV/ c and then crosses zero again at about 230 MeV/ c .

2 data tables match query
Table 2

No description provided.

Table 3

No description provided.


Measurement of the Real Part of the Forward Amplitude in anti-p p Elastic Scattering

Jenni, P. ; Baillon, P. ; Bricman, C. ; et al.
Nucl.Phys.B 94 (1975) 1-20, 1975.
Inspire Record 99005 DOI 10.17182/hepdata.31973

The differential cross sections of the elastic p p reaction have been measured at 1.2, 1.4, 1.8 and 2.6 GeV/ c incident p momentum. The measurements have been performed at the CERN PS using a system of multiwire proportional chambers. The angular region covers scattering angles from 0 to ∼200 mrad. Interference effects between the Coulomb and the nuclear amplitudes are used to derive the ratio of the real to imaginary part of the forward nuclear amplitude. These ratios are compared with theoretical predictions.

6 data tables match query
Table 1

'MS'. 'TBIN'.

Table 2

'MS'. 'TBIN'.

Table 3

'MS'. 'TBIN'.

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