Cumulative hadrons: production mechanism, information

Kalinkin, B.N.; Shmonin, V. L.

doi:10.1088/0031-8949/42/4/003

Cited by 4 publications

(11 citation statements)

References 6 publications

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“…In the present study we will advocate the approach suggested in [7], see also Refs. [15][16][17][18][19].…”

Section: Successive Collisions With Nuclear Nucleonsmentioning

confidence: 99%

“…In the present study we will advocate the approach suggested in [7], see also [15][16][17][18][19]. It assumes that instead of a large mass of multi-nucleon target, cumulative particle production takes place due to the large mass of the projectile baryonic resonance created in the first p+N collision and propagated further through the nucleus.…”

Section: Successive Collisions With Nuclear Nucleonsmentioning

confidence: 99%

“…About 40 years ago the so-called cumulative effect was discovered in relativistic protonnucleus (p+A) collisions, i.e., secondary particles were detected in the kinematic region forbidden within an interaction of the projectile proton with a free nucleon [1][2][3][4][5]. Different theoretical models were proposed [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23], however, a physical origin of this effect is still not settled. In the present paper the cumulative effect is considered for pion production in inclusive reactions p+A→ π(180 • ) + X with the pion emitted at 180 • , i.e., in the backward direction in the rest frame of nuclei A.…”

Section: Introductionmentioning

confidence: 99%

“…In both experiments, the atomic numbers of the nuclear targets were varied in a wide region = A 10 200. Different theoretical models were proposed [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23], however, the physical origin of the cumulative effect is still not settled. At present, the NA61/SHINE Collaboration [24,25] at the CERN SPS is investigating proton-proton (p+p) and nucleus-nucleus (A+A) reactions.…”

Section: Introductionmentioning

confidence: 99%

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Cumulative production of pions by heavy baryonic resonances in proton–nucleus collisions

Motornenko

Gorenstein

2017

J. Phys. G: Nucl. Part. Phys.

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Pion production in proton-nucleus (p+A) collisions outside the kinematical boundary of protonnucleon (p+N) reactions, the so-called cumulative effect, is studied. Restrictions from energymomentum conservation on the energy of pions emitted in the backward direction in the target rest frame are analyzed. It is assumed that the cumulative pions are produced in p+A reactions by heavy baryonic resonances. The baryonic resonances are first created in p+N reactions. Due to successive collisions with nuclear nucleons the masses of these resonances may then increase and, simultaneously, their longitudinal velocities decrease. We also use the Ultra relativistic Quantum Molecular Dynamics model to reveal the key role of successive collisions of baryonic resonances with nuclear nucleons for cumulative pion production in p+A reactions. Further experimental studies of cumulative hadron production in p+A reactions at high collision energies are needed to search for heavy hadron-like objects and investigate their properties. PACS numbers: 25.75.-q, 25.75.Dw, 25.75.Ld

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“…In the present study we will advocate the approach suggested in [7], see also Refs. [15][16][17][18][19].…”

Section: Successive Collisions With Nuclear Nucleonsmentioning

confidence: 99%

Section: Successive Collisions With Nuclear Nucleonsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cumulative production of pions by heavy baryonic resonances in proton–nucleus collisions

Motornenko

Gorenstein

2017

J. Phys. G: Nucl. Part. Phys.

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“…Our present study is based on an alternative model scenario [27], see also Refs. [28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Backward nucleon production by heavy baryonic resonances in proton-nucleus collisions

et al. 2019

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The production of backward nucleons, N (180 • ), at 180 • in the nuclear target rest frame in protonnucleus (p + A) collisions is studied. The backward nucleons appearing outside of the kinematically allowed range of proton-nucleon (p + N ) reactions are shown to be due to secondary reactions of heavy baryonic resonances produced inside the nucleus. Baryonic resonances R created in primary p + N reactions can change their masses and momenta due to successive collisions R + N → R + N with other nuclear nucleons. Two distinct mechanisms and kinematic restrictions are studied: the reaction R + N → N (180 • ) + N and the resonance decay R → N (180 • ) + π. Simulations of p + A collisions using the Ultra-relativistic Quantum Molecular Dynamics model support these mechanisms and are consistent with available data on proton backward production.

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On the Nature of “Nuclear Scaling” of Cumulative Hadron Spectra in Hadron-nuclear Interactions

Kalinkin

Gagarin

1998

Phys. Scr.

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An interpretation is given for the nuclear scaling of cumulative hadron spectra that provides an understanding of its nature and universality. A simple explanation is presented for the well-known remarkable fact: the spectra of cumulative protons also obey the nuclear scaling though their sources strongly differ from sources of mesons and antiprotons in physical parameters. This explanation has been found by analysing the channel of cumulative production of hadrons in the framework of the gluon-dominance model elaborated for describing the multihadron production.

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Cumulative hadrons: production mechanism, information

Cited by 4 publications

References 6 publications

Cumulative production of pions by heavy baryonic resonances in proton–nucleus collisions

Cumulative production of pions by heavy baryonic resonances in proton–nucleus collisions

Backward nucleon production by heavy baryonic resonances in proton-nucleus collisions

On the Nature of “Nuclear Scaling” of Cumulative Hadron Spectra in Hadron-nuclear Interactions

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