elastic and charge exchange scattering at 230 MeV

Kohno, H.; Kaneko, S.; Murata, Yoshitada; Ohsugi, T.; Okamura, Koji; Fukawa, M.; Hamatsu, R.; Hirose, T.; Mamiya, Takayoshi; Yamagata, T.; Emura, T.; Kita, I.; Takahashi, K.

doi:10.1016/0550-3213(72)90405-1

Cited by 20 publications

(5 citation statements)

References 16 publications

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“…3(c) shows the charged multiplicity distribution in the annihilation model described above. The comparison with the experimental points taken from [23,24] serves as additional confirmation of our calculations.…”

Section: Introductionsupporting

confidence: 67%

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Antiproton annihilation in the galaxy as a source of diffuse γ background

Golubkov

Khlopov²

2001

Phys. Atom. Nuclei

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The existence of antimatter domains in baryon asymmetrical Universe can appear as the cosmological consequence of particle theory in inflationary models with non-homogeneous baryosynthesis. Such a domain can survive in the early Universe and form globular cluster of antimatter stars in our Galaxy. The model of antimatter pollution of Galaxy and annihilation with matter gas is developed. The proton-antiproton annihilation gamma flux is shown to reproduce the observed galactic gamma background measured by EGRET. From comparison with observational data the estimation on the maximally allowed amount of antimatter stars, possibly present in our Galaxy, is found.

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Section: Introductionsupporting

confidence: 67%

“…There is also shown the comparison of the charged multiplicity distribution in the annihilation model described in the text with the existent experimental data (c). Circles - [23], squares - [24].…”

Section: Channelmentioning

confidence: 99%

Antiproton annihilation in the galaxy as a source of diffuse γ background

Golubkov

Khlopov²

2001

Phys. Atom. Nuclei

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“…Data are taken from Refs. [75,67,76,73,77,78,79,80] (differential cross sections), [81,82,83] (analyzing powers), and [84] (D nn ). Note that contributions from J ≥ 5 become relevant for momenta above 400 MeV/c, but primarily at backward angles.…”

Section: Observablesmentioning

confidence: 99%

Antinucleon-nucleon interaction at next-to-next-to-next-to-leading order in chiral effective field theory

Dai¹,

Haidenbauer²,

Meißner³

2017

J. High Energ. Phys.

130

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Abstract:Results for the antinucleon-nucleon (N N ) interaction obtained at next-to-nextto-next-to-leading order in chiral effective field theory (EFT) are reported. A new local regularization scheme is used for the pion-exchange contributions that has been recently suggested and applied in a pertinent study of the N N force within chiral EFT. Furthermore, an alternative strategy for estimating the uncertainty is utilized that no longer depends on a variation of the cutoffs. The low-energy constants associated with the arising contact terms are fixed by a fit to the phase shifts and inelasticities provided by a phase-shift analysis ofpp scattering data. An excellent description of theN N amplitudes is achieved at the highest order considered. Moreover, because of the quantitative reproduction of partial waves up to J = 3, there is also a nice agreement on the level ofpp observables. Specifically, total and integrated elastic and charge-exchange cross sections agree well with the results from the partial-wave analysis up to laboratory energies of 300 MeV, while differential cross sections and analyzing powers are described quantitatively up to 200-250 MeV. The low-energy structure of theN N amplitudes is also considered and compared to data from antiprotonic hydrogen.

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“…In the pre-LEAR era a very large part of the experimental data on pp scattering consisted of elastic differential cross sections [110,104,129,132,128,113]. The most accurate data were those taken by Eisenhandler et al at 690, 790, and 860 MeV/c (and higher momenta) [128].…”

Section: The Nijmegen 1993 Antiproton-proton Database a Set-up Of The...mentioning

confidence: 99%

“…Before the advent of LEAR in 1983, also charge-exchange differential observables were scarce. Some differential cross sections existed [119,129,151,121,152], but these were not very accurate. Since 1984, however, the situation has improved enormously.…”

Section: The Nijmegen 1993 Antiproton-proton Database a Set-up Of The...mentioning

confidence: 99%

Antiproton-proton partial-wave analysis below 925 MeV/c

1994

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A partial-wave analysis of all antiproton-proton scattering data below 925 MeV/c antiproton laboratory momentum is presented. The method used is adapted from the Nijmegen phase-shift analyses of pp and np scattering data. The Nijmegen 1993 antiproton-proton database, consisting of 3646 antiproton-proton scattering data, is presented and discussed. The best fit to this database results in chi^2_min/Ndata = 1.043. The pseudovector coupling constant of the charged pion to nucleons is determined to be (f_c)^2 = 0.0732(11) at the pion pole, where the error is statistical.Comment: Report THEF-NYM 93.02 42 pages REVTeX, 7 separate postscript figures appended. Accepted for publication in Phys. Rev.

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elastic and charge exchange scattering at 230 MeV

Cited by 20 publications

References 16 publications

Antiproton annihilation in the galaxy as a source of diffuse γ background

Antiproton annihilation in the galaxy as a source of diffuse γ background

Antinucleon-nucleon interaction at next-to-next-to-next-to-leading order in chiral effective field theory

Antiproton-proton partial-wave analysis below 925 MeV/c

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