Murata, Y.
PBAR P --> NBAR N
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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
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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MEASUREMENT OF THE ANTI-P P ---> ANTI-N N DIFFERENTIAL CROSS-SECTIONS AT LOW MOMENTA AND CONFIRMATION OF THE FORWARD DIP

Nakamura, K. ; Fujii, T. ; Kageyama, T. ; et al.
Phys.Rev.Lett. 53 (1984) 885-888, 1984.
Inspire Record 207326 DOI 10.17182/hepdata.20405

The differential cross sections of the reaction p―p→n―n were measured at 390, 490, 590, 690, and 780 MeV/c. The existence of the theoretically predicted forward dip is confirmed. The results are compared with the predictions of various N―N potential models.

6 data tables
Table 1

NUMERICAL VALUES SUPPLIED BY F. SAI.

Table 2

NUMERICAL VALUES SUPPLIED BY F. SAI.

Table 3

NUMERICAL VALUES SUPPLIED BY F. SAI.

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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
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Study of the $\bar{p} p \to \bar{n} n$ Reaction in the Momentum Range 480-{MeV}/$c$ to 728-{MeV}/$c$

Tsuboyama, T. ; Kubota, Y. ; Sai, F. ; et al.
Phys.Rev.D 28 (1983) 2135, 1983.
Inspire Record 189641 DOI 10.17182/hepdata.23789

The total and differential p¯p charge-exchange cross sections were obtained at seven momenta in the range 480 to 728 MeV/c. The total cross sections are roughly consistent with other data. The momentum dependences of the Legendre coefficients a1a0, a2a0, and a3a0 of the differential cross sections do not agree well with the predictions of the Bryan-Phillips model, unlike the case of elastic scattering.

5 data tables
Table 1

TWO SETS OF DATA ARE GIVEN. THIS FIRST IS THAT PREFERRED USING THE CROSS SECTIONS OF BIZZARI ET AL.

Table 2

SECOND SET USING BURROWS ET AL., CROSS SECTIONS.

Table 3

DATA NORMALIZED TO THE CROSS SECTIONS OF HAMILTON ET AL., PRL 44, 1179 (1980).

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