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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.

11 data tables
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Experimental comparison of anti-d p and anti-p d total cross-sections

Denisov, S.P. ; Donskov, S.V. ; Gorin, Yu.P. ; et al.
Phys.Lett.B 34 (1971) 167-169, 1971.
Inspire Record 69336 DOI 10.17182/hepdata.5847

d ̄ p and p ̄ d total cross-sections have been measured at 13.3 and 6.65 GeV/ c respectively to check CPT-invariance. The standard transmission technique was used. The difference of d ̄ p and p ̄ d total cross-sections appeared to be equal 0.2 ± 2.6 mb. In addition d ̄ d and p ̄ p total cross-sections have been obtained. The experimental data allowed us to derive the total cross-section of antineutrons on protons, neutrons and deutrons.

7 data tables
Table 1

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Table 2

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Scattering of antineutrons by protons

Franklin, A.D. ; Socash, R.R. ;
Phys.Rev. 184 (1969) 1413-1414, 1969.
Inspire Record 62285 DOI 10.17182/hepdata.5406

The total and elastic cross sections for antineutrons on protons have been measured for antineutron momenta from 0.5 to 2.5 GeV/c. The results are in agreement with previous p¯p data at these momenta.

2 data tables
Table 1

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Table 2

No description provided.