Inclusive particle production at forward angles from collisions of light relativistic nuclei: Negative pions

Moeller, Elvira; Anderson, L. W.; Brückner, W.; Nagamiya, S.; Nissen-Meyer, S.; Schroeder, L. S.; Shapiro, G.; Steiner, H.

doi:10.1103/physrevc.28.1246

Cited by 31 publications

(12 citation statements)

References 29 publications

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“…This effect is demonstrated in Fig. 11 where shown are the data [29] on the production cross section of re--mesons at angle 0=0 ~ in pCtZ-collisions at energy 3.04 GeV. Arrows indicate positions of the kinematical limits for NN-and NC-collision.…”

Section: Production Of Cumulative ~Z--mesons At Angle O=0 ~ In Aa-colmentioning

confidence: 75%

“…The invariant cross section of production of re--mesons in CC-collisions calculated with all the listed factors is compared with experimental data [29] in Fig. 12.…”

Section: Production Of Cumulative ~Z--mesons At Angle O=0 ~ In Aa-colmentioning

confidence: 99%

“…The cross sections of production of cumulative +-mesons at different angles calculated by (26) and (29) are shown in Fig. 7 by solid curves and compared with the data [25] and the results of the approximation [21] …”

Section: Production Of Cumulative ~ +-Mesons At Ei=400 Gevmentioning

confidence: 99%

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On a present status of the gathering model for cumulative meson production

Ameev

Golubyatnikova

Kalinkin

et al. 1988

Z. Physik A - Atomic Nuclei

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Physical grounds of the "gathering" model are discussed. It is shown that the "gathering" of nucleons in a collective interaction is a direct consequence of the behaviour of colour forces at large distances. An analytical variant of the model is presented which allows a large simplification of the calculation procedure. The results obtained are compared with the data on ~-and K-meson cumulative production. The model applicability for relativistic nucleus-nucleus collisions is discussed.

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Section: Production Of Cumulative ~Z--mesons At Angle O=0 ~ In Aa-colmentioning

confidence: 75%

“…The invariant cross section of production of re--mesons in CC-collisions calculated with all the listed factors is compared with experimental data [29] in Fig. 12.…”

Section: Production Of Cumulative ~Z--mesons At Angle O=0 ~ In Aa-colmentioning

confidence: 99%

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On a present status of the gathering model for cumulative meson production

Ameev

Golubyatnikova

Kalinkin

et al. 1988

Z. Physik A - Atomic Nuclei

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“…For a more accurate comparison we made an extrapolation of our data to θ π = 0 • using results from the double differential cross section. In figure 5 (left) we present comparison with experiments, performed at the Bevalac of the Lawrence Berkeley Laboratory: d + C → π − (0 • ) + x (P = 1.75 and 2.88 GeV/c per nucleon) [1]. In figure 5 (right) we present comparison with experiments, performed at the LHE Synchrophasotron, Dubna:…”

Section: Comparisons With the Data From Another Experimentsmentioning

confidence: 94%

π⁰production indC- anddCu-interactions at a momentum of 4.5 GeV/c per nucleon

et al. 2017

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Abstract. We report on measurements of neutral pion production in the inclusive reactions d + C → π 0 + x and d + Cu → π 0 + x at an incident momentum of 4.5 GeV/c per nucleon. The experiments were performed on the LHE 90-channel lead glass γ-spectrometer. The cross sections were measured over the kinematical region specified by the inequalities θ π ≤ 16 • and E π ≥ 2 GeV (in the laboratory frame). The cumulative number and transverse momentum dependencies of the exponent n in the invariant cross section parameterization Ed 3 σ/d 3 p ∼ A n t are investigated by comparing of the observed cross sections for π 0 production on carbon and copper targets in the intervals 0.6 ≤ X ≤ 1.8 and 0.04 ≤ P 2 T ≤ 0.40 (GeV/c) 2 . The double differential cross section for the reaction d + C → π 0 + x is measured using statistics of about 4.5 · 10 4 π 0 mesons. On the basis of these data we verified the so-called cluster mechanism of π 0 production. We have compared our data for the reaction d + C → π 0 + x, extrapolated to θ π = 0 • , with the data from another experiments on π − production: d + C → π − (0 • ) + x (P = 1.75 and 2.88 GeV/c per nucleonGeV/c per nucleon) [3]. The invariant cross sections were approximated by an exponential function Ed 3 σ/d 3 p ∼ exp(−X/X 0 ). The slope parameter X 0 at different kinetic energies of the projectiles in the range of 1.05÷8.0 GeV per nucleon is determined.

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“…In case of pions, it has been shown [7,8] that the invariant cross sections from proton-nucleus reactions at energies around a few GeV scale according to the Feynman x F variable, which is defined by x F p ‫ء‬ l ͑͞p ‫ء‬ l ͒ max , where p ‫ء‬ l is the longitudinal momentum of the emitted particle in the c.m. system and ͑p ‫ء‬ l ͒ max its maximum value allowed by kinematics.…”

mentioning

confidence: 99%

Subthreshold Production of Low MomentumK+inp+Cat 1.2 GeV

et al. 1998

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The double differential cross section of low momentum kaons (# 0.3 GeV͞c) from p 1 C collisions at subthreshold bombarding energies has been for the first time measured by the use of the CLAMSUD magnetic spectrometer installed at the CELSIUS storage ring. Invariant cross sections extracted from the data show a source rapidity shifted below the nucleon-nucleon rapidity, in agreement with the existence of multistep processes in the K 1 production cross section. The total cross section of the inclusive reaction 12 C͑p, K 1 ͒ at 1.2 GeV was extracted and compared with recent data systematics as a function of the proton bombarding energy. [S0031-9007 (98)06266-8] PACS numbers: 25.40.Ve, 25.40.QaWhile the production of pions at subthreshold energies, i.e., at energies lower than the threshold for free nucleonnucleon (NN) collisions, has been extensively studied both in proton-nucleus [1] and in nucleus-nucleus [2] collisions, only recently have the first data on the production of K 1 from proton-nucleus collisions in the subthreshold regime been published [3].

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Inclusive particle production at forward angles from collisions of light relativistic nuclei: Negative pions

Cited by 31 publications

References 29 publications

On a present status of the gathering model for cumulative meson production

On a present status of the gathering model for cumulative meson production

π⁰production indC- anddCu-interactions at a momentum of 4.5 GeV/c per nucleon

Subthreshold Production of Low MomentumK+inp+Cat 1.2 GeV

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Inclusive particle production at forward angles from collisions of light relativistic nuclei: Negative pions

Cited by 31 publications

References 29 publications

On a present status of the gathering model for cumulative meson production

On a present status of the gathering model for cumulative meson production

π0production indC- anddCu-interactions at a momentum of 4.5 GeV/c per nucleon

Subthreshold Production of Low MomentumK+inp+Cat 1.2 GeV

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Product

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π⁰production indC- anddCu-interactions at a momentum of 4.5 GeV/c per nucleon