Hopes and Realities for the (p,π) Reaction

Measday, D.F.; Miller, G. A.

doi:10.1146/annurev.ns.29.120179.001005

Cited by 91 publications

(12 citation statements)

References 68 publications

(101 reference statements)

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“…We note that the highmomentum-transfer pion-production process is rather sensitive to many terms important at small separations between nucleons that would otherwise have small eAects [5]. In this case, the IUCF data oA'ers a new opportunity to investigate the of-shell pion-nucleon scattering amplitude.…”

mentioning

confidence: 93%

Total cross section forp+p→p+p+π0near threshold

Miller

1991

Phys. Rev. C

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mentioning

confidence: 93%

Total cross section forp+p→p+p+π0near threshold

Miller

1991

Phys. Rev. C

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“…According to the Symmetrical Meson Theory of Nuclear Force43 and a binding energy that tends to clump bosons together, we can note the interaction energy of two nucleons at separation r as follows:…”

Section: Physical Catalysis Effect For Dynamic Reactions Of Deuteron mentioning

confidence: 99%

Possible generation of heat from nuclear fusion in Earth’s inner core

Fukuhara

2016

Sci Rep

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The cause and source of the heat released from Earth’s interior have not yet been determined. Some research groups have proposed that the heat is supplied by radioactive decay or by a nuclear georeactor. Here we postulate that the generation of heat is the result of three-body nuclear fusion of deuterons confined in hexagonal FeDx core-centre crystals; the reaction rate is enhanced by the combined attraction effects of high-pressure (~364 GPa) and high-temperature (~5700 K) and by the physical catalysis of neutral pions: 2D + 2D + 2D → 21H + 4He + 2 + 20.85 MeV. The possible heat generation rate can be calculated as 8.12 × 1012 J/m3, based on the assumption that Earth’s primitive heat supply has already been exhausted. The H and He atoms produced and the anti-neutrino are incorporated as Fe-H based alloys in the H-rich portion of inner core, are released from Earth’s interior to the universe, and pass through Earth, respectively.

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“…where iG 0 = −im N G. First, one solves the homogenous equation and requires both finiteness at the origin and outgoing wave behavior for large r. Thus, G(r, r ′ ) = Aj l (ξr < )h (1) l (ξr > ). Next, the boundary condition at r = r ′ is obtained by integrating the differential equation across the boundary.…”

Section: Initial State Opementioning

confidence: 99%

Impulse approximation in thenp→dπ0reaction reexamined

Bolton¹,

Miller²

2010

Phys. Rev. C

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The impulse approximation (one-body operator) in the np → dπ 0 reaction is reexamined with emphasis on the issues of reducibility and recoil corrections. An inconsistency when one pion exchange is included in the production operator is demonstrated and then resolved via the introduction of "wave function corrections" which nearly vanish for static nucleon propagators. Inclusion of the recoil corrections to the nucleon propagators is found to change the magnitude and sign of the impulse production amplitude, worsening agreement with the experimental cross section by ∼ 30%. A cutoff is used to account for the phenomenological nature of the external wave functions, and is found to have a significant impact for Λ < ∼ 2.5 GeV.

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Hopes and Realities for the (p,π) Reaction

Cited by 91 publications

References 68 publications

Total cross section forp+p→p+p+π0near threshold

Total cross section forp+p→p+p+π0near threshold

Possible generation of heat from nuclear fusion in Earth’s inner core

Impulse approximation in thenp→dπ0reaction reexamined

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