Correlations between neutrons with small relative momenta produced in p-Pb interactions at 7.5 GeV/c

Bayukov, Yu.D.; Degtyarenko, P. V.; Efremenko, Y. V.; Федоров, В. Б.; Gavrilov, V.; Goryainov, N.A.; Grishuk, Yu.G.; Gushchin, O.B.; Klumov, I A; Leksin, G.A.; Stavinsky, A.; Surin, Prayoon; Shuvalov, S.; Shvartsman, B.B.

doi:10.1016/0370-2693(87)91434-1

Cited by 13 publications

(6 citation statements)

References 11 publications

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“…The solid lines show the results of our calculations using (6). Figure 2 gives the same comparison for the deuteron-production cross section at emission angles of 40 ~ and 119 ~ in collisions of 7.5 GeV/c protons with a lead target [18]. The results of the calculations provide a reasonably good description of the experimental data.…”

Section: Discussionmentioning

confidence: 60%

“…Among the available experimental results the most interesting ones were measured with 10 GeV/c incident protons and deuteron momenta pd higher than p~m from (5) [17]. Figure 1 shows the experimental energy spectra of deuterons produced at angles of 59 ~ and 119 ~ in the interaction of 3 GeV/c protons with copper nuclei [ 18]. The solid lines show the results of our calculations using (6).…”

Section: Discussionmentioning

confidence: 97%

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Fast deuteron production in proton-nucleus interactions

Büscher

Sibirtsev

Sistemich

1994

Z. Physik A - Hadrons and Nuclei

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Abstract. Deuteron formation in proton-nucleus reactions due to the coalescence mechanism with final-state interaction between nucleons is discussed in order to establish the kinematical region of the validity of this approach. The experimental data on fast deuteron production in proton-nucleus collisions at bombarding energies above 3 GeV are analyzed. It is shown that most experimental results were obtained for deuteron momenta below the critical limit of the coalescence model. It is discussed to which extent further experimental studies could help to identify contributions from the coalescence mechanism and to get better understanding of the fast deuteron-production process.

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Section: Discussionmentioning

confidence: 60%

Section: Discussionmentioning

confidence: 97%

Fast deuteron production in proton-nucleus interactions

Büscher

Sibirtsev

Sistemich

1994

Z. Physik A - Hadrons and Nuclei

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“…Dividing the momentum range into two parts we observed that r p~ at 0.3 </5<0.5 GeV/c equals to 3.56+0.27 fm and is greater than r pp at 0.5</5<0.7 GeV/c, where r pp = 2.77 + 0.23 fro. A similar effect is known for hA interactions (see, for example [10][11][12]). …”

Section: Secondary Particle Correlationsmentioning

confidence: 56%

Inelastic electron-nucleus interactions at 5 GeV detected by ARGUS

Degtyarenko

Efremenko

Gavrilov

et al. 1990

Z. Physik A - Atomic Nuclei

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Beam-gas events taken with the ARGUS detector at the e + e--storage ring DORIS-II have been used to study interactions of e + at 5 GeV with light nuclei mainly 160. The selection of e + 160 events is discussed. The spectra of secondary protons and charged pions are found to be similar to those of hA interactions in accordance with the nuclear scaling. Measurements of like-particle (p p and rc re) correlations at small relative momenta were used to determine the radius of particle emission region in e + x60 interactions. This radius proved to be equal within errors to the radius of particle emission region in hC interactions. No any narrow diproton resonance has been observed in the mass region from 1.9 to 2.2 GeV.

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“…The strong interaction induces a positive correlation while the Coulomb interaction induces a negative correlation. For neutron pairs, the nuclear singlet final-state interaction (FSI) exceeds the quantal interference for sufficiently short emitter lifetimes, causing a net positive small-momentum correlation [13].…”

Section: Introductionmentioning

confidence: 99%

Intensity interferometry with neutrons from the compound nucleus82Kr

Gentner

Keller

Lücking

et al. 1992

Z. Physik A - Hadrons and Nuclei

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Abstract. Correlations between neutrons have been studied in the 96 MeV 1sO + 64Ni reaction, yielding the compound nucleus S2Kr at 88 MeV excitation energy. The observed anticorrelation at small relative momenta evidences dominance of quantum-statistical interference between identical particles, from which it is possible to deduce an average source lifetime r= (1.2 + 0,1) 9 10 -2o s as an upper limit disregarding possible contributions to the correlation function from the competing nn final-state interaction. Lacking appropriate model calculations at present, it is argued that further refinements in the theoretical treatment of strong interactions in the final state are needed to enable truly quantitative conclusions from small-angle nucleon-nucleon correlations at such large timescales.

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Correlations between neutrons with small relative momenta produced in p-Pb interactions at 7.5 GeV/c

Cited by 13 publications

References 11 publications

Fast deuteron production in proton-nucleus interactions

Fast deuteron production in proton-nucleus interactions

Inelastic electron-nucleus interactions at 5 GeV detected by ARGUS

Intensity interferometry with neutrons from the compound nucleus82Kr

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