Final-state interaction in the pd → pnp reaction at 1 GeV

Deloff, A.; Siemiarczuk, T.

doi:10.1016/0375-9474(93)90502-o

Cited by 7 publications

(8 citation statements)

References 32 publications

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“…The amplitude for the NNN → dN reaction can be obtained from its inverse reaction dN → NNN, which has been studied in Refs. [29][30][31] based on the full NN elasticscattering amplitude. Instead of such a complete study, we approximate the amplitude for the reaction NNN → dN by extending the amplitude we derived in the previous section for the NN → dπ reaction to an off-shell pion that is absorbed by the third spectator nucleon.…”

Section: A N N N → D N Reactionmentioning

confidence: 99%

Elliptic flow of deuterons in relativistic heavy-ion collisions

2007

Phys. Rev. C

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Using a dynamical model based on the NN → dπ, NNN → dN, and NNπ → dπ reactions and measured proton and pion transverse momentum spectra and elliptic flows, we study the production of deuterons and their elliptic flow in heavy-ion collisions at RHIC. The results are compared with those from the coalescence model. The deviation of deuteron elliptic flow from the constituent nucleon number scaling expected from the coalescence model and the comparison with the experimental data are discussed in connection to the allowed nucleon phase space in these reactions.

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Section: A N N N → D N Reactionmentioning

confidence: 99%

Elliptic flow of deuterons in relativistic heavy-ion collisions

2007

Phys. Rev. C

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“…The present work is a continuation of our previous [1] - [5] studies (cf. The present work is a continuation of our previous [1] - [5] studies (cf.…”

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confidence: 53%

“…Our previous study [5] shows that impulse approximation provides an excellent description of the pd --+ pr~p reaction at 1 GeV. Other more complicated dynamical effects are definitely present but their contribution is so small that they could be discerned only after suppressing the dominant quasi-free background.…”

mentioning

confidence: 97%

“…Narrow enhancements have indeed been observed in the pd --+ pnp channel in the effective mass distribution of two nucleons and these peaks remain unaccounted for by phenomenological calculations [5] based on the best nucleon-nucleon input information available to-day but which do not make explicit allowance for any subnucleonic degrees of freedom. Narrow enhancements have indeed been observed in the pd --+ pnp channel in the effective mass distribution of two nucleons and these peaks remain unaccounted for by phenomenological calculations [5] based on the best nucleon-nucleon input information available to-day but which do not make explicit allowance for any subnucleonic degrees of freedom.…”

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confidence: 99%

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Observation of two enhancements inM(?? pp) in the reactionpd ? ?? ppp at 1GeV

Deloff

Siemiarczuk

1995

Z. Physik A - Hadrons and Nuclei

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“…For example, cross section of reaction D + D → X + D at 8.9 GeV/c momentum of primary deuterons and t = −0.5 (GeV/c) 2 was measured in [33] [17,34,35], though there were no comments on this subject in [33]. The third peak, rather wide, may arise due to intermediate tribaryon appearance, D + D → 3B + N → X + D, at M 3B ≈ 3.28 GeV/c 2 .…”

Section: Pos(baldin Ishepp Xxi)105mentioning

confidence: 99%

Method of cumulative particle for experimental study of multibaryon production

Kostenko¹,

Pribish²,

Filinova³

2013

Proceedings of XXI International Baldin Seminar on High Energy Physics Problems — PoS(Baldin ISHEPP XXI)

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After collisions with impinging particle, a density fluctuation of nuclear matter may turn into a multibaryon (MB) with chiral symmetry restored in its interior. This method of observation of the chiral phase transition has its advantages due to a relatively moderate number of secondary particles to be measured. We suggest to use a cumulative particle as a trigger for a detection of MB decay products. Estimations show that its appearance is a signature of "deep cooling" of MB, which brings it close to the unexcited state. This gives a chance to separate MB from the secondary particle background. For separation of events with MB production, a role of intranuclear collisions of MB decay products should also be evaluated. We study experimental data taken with the EVA spectrometer at BNL as a simplified form of the problem. Analysis of intranuclear interactions before and after hard scattering of protons from SRC leads to a plausible conclusion that there were π-mesons missed in the experiment. Other logically permissible possibilities such as a color anti-transparency effect and a presence of states reminding a fusiform (ellipsoidal) body in the wave function of 12 C are briefly discussed too. Then we show that the short range correlation mechanism is not the only reasonable explanation of the experimental data. Interpretations based on dibaryons pre-existent in nuclei before its interaction with the projectile, or created during this interaction are also possible. Some examples of detection of MB production by the cumulative particle method are given with estimations of their feasibility.

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Final-state interaction in the pd → pnp reaction at 1 GeV

Cited by 7 publications

References 32 publications

Elliptic flow of deuterons in relativistic heavy-ion collisions

Elliptic flow of deuterons in relativistic heavy-ion collisions

Observation of two enhancements inM(?? pp) in the reactionpd ? ?? ppp at 1GeV

Method of cumulative particle for experimental study of multibaryon production

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