EXPERIMENTAL DATA ON CUMULATIVE PION PRODUCTION AT 8.9-GeV/c PROTON INTERACTION WITH LIGHT NUCLEI

Baldin, A.M. ; Bondarev, V.K. ; Giordenescu, N. ; et al.
JINR-1-82-28, 1982.
Inspire Record 184670 DOI 10.17182/hepdata.71072

None

49 data tables

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Production of K+- Mesons from Be Targets at 62-Mrad at 9.5-GeV/c Incident Proton Momenta

Aleshin, Yu.D. ; Drabkin, I.A. ; Kolesnikov, V.V. ;
ITEP-80-1977, 1977.
Inspire Record 122855 DOI 10.17182/hepdata.40313

None

2 data tables

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Measurement of particle production in proton induced reactions at 14.6-GeV/c

The E-802 collaboration Abbott, T. ; Akiba, Y. ; Beavis, D. ; et al.
Phys.Rev.D 45 (1992) 3906-3920, 1992.
Inspire Record 323473 DOI 10.17182/hepdata.3830

Particle production in proton-induced reactions at 14.6 GeV/c on Be, Al, Cu, and Au targets has been systematically studied using the E-802 spectrometer at the BNL-Alternating Gradient Synchrotron. Particles are measured in the angular range from 5° to 58° and identified up to momenta of 5, 3.5, and 8 GeV/c for pions, kaons, and protons, respectively. Mechanisms for particle production are discussed in comparison with heavy-ion-induced reactions at the same incident energy per nucleon.

105 data tables

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Experimental Data on Cumulative Production of Positive and Negative Kaons in p-Pb Interaction

Baldin, A.M. ; Bondarev, V.K. ; Ghiordanescu, N. ;
JINR-1-80-488, 1980.
Inspire Record 1189877 DOI 10.17182/hepdata.34057

Cross sections of cumulative K exp + and K exp - -meson production in the 200-1000 MeV kinetic energy range at 90 deg, 120 deg, 168 deg (l.c.s.) are measured. The ranges of kinetic energies and emission angles mean that, according to the hypothesis of cum ...

50 data tables
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Production of Cumulative $K^-$ Mesons on Protons at 10-{GeV} Energy

Boyarinov, S.V. ; Gerzon, S.A. ; Evseev, I.I. ; et al.
Sov.J.Nucl.Phys. 50 (1989) 996-1000, 1989.
Inspire Record 268043 DOI 10.17182/hepdata.40059

None

8 data tables
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HIGH P(T) HADRON PRODUCTION OFF NUCLEI AT 70-GeV

Abramov, V.V. ; Baldin, B.Yu. ; Buzulutskov, A.F. ; et al.
Z.Phys.C 24 (1984) 205-215, 1984.
Inspire Record 197457 DOI 10.17182/hepdata.40973

Invariant cross sections for hadron production (π±,K±,p and\(\bar p\)) by protons off C, Al, Cu, Sn and Pb nuclei have been measured at 70 GeV for theP∧ range from 1 up to 4.65 GeV/c. TheA-dependence of the invariant cross section is not described by the exponentialAα(P∧), which points to the presence of secondary hadron absorption in nuclei.

30 data tables
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Cross-Sections of Large-Angle Hadron Production in Proton- and Pion-Nucleus Interactions I: Beryllium Nuclei and Beam Momenta of +8.9 Gev/c and -8.0 Gev/c

The HARP-CDP Group collaboration Bolshakova, A. ; Boyko, I. ; Chelkov, G. ; et al.
Eur.Phys.J.C 62 (2009) 293-317, 2009.
Inspire Record 811688 DOI 10.17182/hepdata.51594

We report on double-differential inclusive cross-sections of the production of secondary protons, deuterons, and charged pions and kaons, in the interactions with a 5% nuclear interaction length thick stationary beryllium target, of a +8.9 GeV/c proton and pion beam, and a -8.0 GeV/c pion beam. Results are given for secondary particles with production angles between 20 and 125 degrees.

76 data tables

Double differential inclusive cross section for the reaction P BE --> P X with an 8.9 GeV beam and production angle 20 to 30 degrees.

Double differential inclusive cross section for the reaction P BE --> P X with an 8.9 GeV beam and production angle 30 to 40 degrees.

Double differential inclusive cross section for the reaction P BE --> P X with an 8.9 GeV beam and production angle 40 to 50 degrees.

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Inclusive K+ meson production in proton nucleus interactions.

Buescher, Markus ; Koptev, V. ; Nekipelov, M. ; et al.
Eur.Phys.J.A 22 (2004) 301-317, 2004.
Inspire Record 643363 DOI 10.17182/hepdata.43537

The production of K^+ mesons in pA (A = D, C, Cu, Ag, Au) collisions has been investigated at the COoler SYnchrotron COSY-Julich for beam energies T_p = 1.0 - 2.3 GeV. Double differential inclusive pC cross sections at forward angles theta < 12 degrees as well as the target-mass dependence of the K^+ momentum spectra have been measured with the ANKE spectrometer. Far below the free NN threshold at T_{NN}=1.58 GeV the spectra reveal a high degree of collectivity in the target nucleus. From the target-mass dependence of the cross sections at higher energies, the repulsive in-medium potential of K^+ mesons can be deduced. Using pN cross-section parameterisations from literature and our measured pD data we derive a cross-section ratio of sigma(pn -> K^+ X) / sigma(pp -> K^+ X) ~ (3-4).

8 data tables

Double differential cross section for P C --> K+ X obtained in the 1.3 T mode. Errors do not include systematic uncertainties.

Double differential cross section for P C --> K+ X obtained in the 1.6 T mode. Errors do not include systematic uncertainties.

Cross section ratios CU/C and AU/C measured with the 1.3 T mode. Errors include statistical and systematic uncertainties.

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Forward K+ production in subthreshold p A collisions at 1.0-GeV.

The ANKE collaboration Koptev, V. ; Buescher, Markus ; Junghans, H. ; et al.
Phys.Rev.Lett. 87 (2001) 022301, 2001.
Inspire Record 556676 DOI 10.17182/hepdata.31765

K+ meson production in pA (A = C, Cu, Au) collisions has been studied using the ANKE spectrometer at an internal target position of the COSY-Juelich accelerator. The complete momentum spectrum of kaons emitted at forward angles, theta < 12 degrees, has been measured for a beam energy of T(p)=1.0 GeV, far below the free NN threshold of 1.58 GeV. The spectrum does not follow a thermal distribution at low kaon momenta and the larger momenta reflect a high degree of collectivity in the target nucleus.

3 data tables

Double differential K+ production cross section for forward K+ angles < 12 degs. Statistical errors only.

The invariant cross section for K+ production. Statistical errors only.

Ratio of K+ production cross sections for CU/C and AU/C.


Measurement of charged particle production from 450-GeV/c protons on beryllium

The NA56/SPY collaboration Ambrosini, G. ; Arsenescu, R. ; Bernier, K. ; et al.
Eur.Phys.J.C 10 (1999) 605-627, 1999.
Inspire Record 499058 DOI 10.17182/hepdata.49181

This paper presents the results on charged particle yields and production ratios as measured by the NA56/SPY experiment for 450 GeV/c proton interactions on beryllium targets. The data cover a seconda

34 data tables

Positive particle yield from the 100mm Be target. Data are corrected for the pion or proton flux coming from strange particle decays.

Negative particle yield from the 100mm Be target. Data are corrected for the pion or antiproton flux coming from strange particle decays.

Positive particle yield from the 100mm Be target. Data are NOT corrected for the pion or proton flux coming from strange particle decays.

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Subthreshold antiproton production in p A, d A and alpha A reactions.

Sugaya, Y. ; Ashery, D. ; Chiba, J. ; et al.
Nucl.Phys.A 634 (1998) 115-140, 1998.
Inspire Record 466882 DOI 10.17182/hepdata.36236

An enormous enhancement of antiproton production in deuteron- and α-induced reactions has been observed in the subthreshold energy region between 2 and 5 GeV/nucleon. Antiprotons produced at 5.1° with a momentum range of between 1.0 and 2.5 GeV/ c were measured by a beam-line spectrometer and identified by the time-of-flight method. The production cross sections in the deuteron- and α-induced reactions at an incident energy of 3.5 GeV/nucleon were 2 and 3 orders of magnitude larger than those in proton-induced reaction at the same energy. The enhancement in light-ion reactions could not be explained by the internal motion in the projectile and target nuclei. The target-mass dependence (C, Al, Cu and Pb) of the cross sections has also been studied. Further, the cross sections of π and K productions were measured.

74 data tables

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Subthreshold production of low momentum K+ in p + C at 1.2-GeV.

Badala, A. ; Barbera, R. ; Bassi, M. ; et al.
Phys.Rev.Lett. 80 (1998) 4863-4866, 1998.
Inspire Record 471821 DOI 10.17182/hepdata.19554

The double differential cross section of low momentum kaons ( ≤0.3GeV/c) from p+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+ production cross section. The total cross section of the inclusive reaction 12C(p,K+) at 1.2 GeV was extracted and compared with recent data systematics as a function of the proton bombarding energy.

1 data table

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K/pi production ratios from 450-GeV/c protons on beryllium.

The SPY collaboration Ambrosini, G ; Arsenescu, R ; Bernier, K ; et al.
Phys.Lett.B 420 (1998) 225, 1998.
Inspire Record 470730 DOI 10.17182/hepdata.49585

This paper reports on the charged K / π production ratios and on the shape of the p T distributions of π fluxes measured by the SPY/NA56 experiment for 450 GeV/c proton interactions on beryllium targets. The present data cover a secondary momentum range from 7 GeV/c to 135 GeV/c in the forward direction and with p T values up to 600 MeV/c. An experimental accuracy of about 3% has been achieved. These results will reduce the uncertainty on the estimation of the ν e component of neutrino beams.

10 data tables

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Additional systematic error of 1.3 PCT.

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Charged kaon and pion production at midrapidity in proton nucleus and sulphur nucleus collisions.

The NA44 collaboration Boggild, H. ; Boissevain, J. ; Dodd, J. ; et al.
Phys.Rev.C 59 (1999) 328-335, 1999.
Inspire Record 474831 DOI 10.17182/hepdata.25575

The NA44 collaboration has measured charged kaon and pion distributions at midrapidity in sulphur and proton collisions with nuclear targets at 200 and 450 GeV/c per nucleon, respectively. The inverse slopes of kaons are larger than those of pions. The difference in the inverse slopes of pions, kaons and protons, all measured in our spectrometer, increases with system size and is consistent with the buildup of collective flow for larger systems. The target dependence of both the yields and inverse slopes is stronger for the sulphur beam suggesting the increased importance of secondary rescattering for SA reactions. The rapidity density, dN/dy, of both K+ and K- increases more rapidly with system size than for pi+ in a similar rapidity region. This trend continues with increasing centrality, and according to RQMD, it is caused by secondary reactions between mesons and baryons. The K-/K+ ratio falls with increasing system size but more slowly than the pbar/p ratio. The pi-/pi+ ratio is close to unity for all systems. From pBe to SPb the K+/p ratio decreases while K-/pbar increases and ({K+*K-}/{p*pbar})**1/2 stays constant. These data suggest that as larger nuclei collide, the resulting system has a larger transverse expansion, baryon density and an increasing fraction of strange quarks.

8 data tables

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Subthreshold K+ production in proton nucleus collisions

De̹bowski, M. ; Barth, R. ; Boivin, M. ; et al.
Z.Phys.A 356 (1996) 313-325, 1996.
Inspire Record 432858 DOI 10.17182/hepdata.16477

Double differential K+cross sections have been measured in p+C collisions at 1.2, 1.5 and 2.5 GeV beam energy and in p+Pb collisions at 1.2 and 1.5 GeV. The K+ spectrum taken at 2.5 GeV can be reproduced quantitatively by a model calculation which takes into account first chance proton-nucleon collisions and internal momentum with energy distribution of nucleons according to the spectral function. At 1.2 and 1.5 GeV beam energy the K+ data excess significantly the model predictions for first chance collisions. When taking secondary processes into account the results of the calculations are in much better agreement with the data.

5 data tables

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Production of pi+-, K+-, p, and anti-p in relativistic Au + Pt, Si + Pt, and p + Pt collisions

The E886 collaboration Diebold, G.E. ; Bassalleck, B. ; Burger, T. ; et al.
Phys.Rev.C 48 (1993) 2984-2994, 1993.
Inspire Record 364483 DOI 10.17182/hepdata.26015

During the recent commissioning of Au beams at the Brookhaven Alternating Gradient Synchrotron facility, experiment 886 measured production cross sections for π±, K±, p, and p¯ in minimum bias Au+Pt collisions at 11.5A GeV/c. Invariant differential cross sections, Ed3σ/dp3, were measured at several rigidities (p/Z≤1.8 GeV/c) using a 5.7° (fixed-angle) focusing spectrometer. For comparison, particle production was measured in minimum bias Si+Pt collisions at 14.6A GeV/c using the same apparatus and in p+Pt collisions at 12.9 GeV/c using a similar spectrometer at KEK. When normalized to projectile mass, Aproj, the measured π± and K± cross sections are nearly equal for the p+Pt and Si+Pt reactions. In contrast to this behavior, the π− cross section measured in Au+Pt shows a significant excess beyond Aproj scaling of the p+Pt measurement. This enhancement suggests collective phenomena contribute significantly to π− production in the larger Au+Pt colliding system. For the Au+Pt reaction, the π+ and K+ yields also exceed Aproj scaling of p+Pt collisions. However, little significance can be attributed to these excesses due to larger experimental uncertainties for the positive rigidity Au beam measurements. For antiprotons, the Si+Pt and Au+Pt cross sections fall well below Aproj scaling of the p+Pt yields indicating a substantial fraction of the nuclear projectile is ineffective for p¯ production. Comparing with p+Pt multiplicities, the Si+Pt and Au+Pt antiproton yields agree with that expected solely from ‘‘first’’ nucleon-nucleon collisions (i.e., collisions between previously unstruck nucleons). In light of expected p¯ annihilation in the colliding system, such projectile independence is unexpected without additional (projectile dependent) sources of p¯ production. In this case, the data indicate an approximate balance exists between absorption and additional sources of antiprotons. This balance is remarkable given the wide range of projectile mass spanned by these measurements.

13 data tables

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Production of charged kaons in proton - nucleus and nucleus-nucleus collisions at 200-GeV/Nucleon

The NA35 collaboration Baechler, J. ; Bartke, J. ; Białkowska, H. ; et al.
Z.Phys.C 58 (1993) 367-374, 1993.
Inspire Record 342660 DOI 10.17182/hepdata.14428

Production of charged kaons in proton-sulphur, proton-gold, sulphur-sulphur and oxygen-gold collisions at 200 GeV/nucleon has been studied in the NA35 Streamer Chamber experiment. Rapidity and transverse mass distributions as well as mean multiplicities were obtained. The results are compared with nucleon-nucleon data and with model predictions.

22 data tables

Tranverse mass distribution for all charged kaons in S S collisions for the limited yrap range 1.4 to 2.4.

Tranverse mass distribution for K0S production in the limited rapidity range 1.4 to 2.4. Data are taken from Bartke et al. ZP C48 (1990) 191.

Rapidity distribution for K+ production in p SU interactions.

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Kaon production in 200-GeV/nucleon nucleus-nucleus collisions

The HELIOS collaboration Akesson, T. ; Almehed, S. ; Angelis, A.L.S. ; et al.
Phys.Lett.B 296 (1992) 273-278, 1992.
Inspire Record 338072 DOI 10.17182/hepdata.28995

Results from the HELIOS External Spectrometer on kaon production in 200 GeV/ A S + W and p + W collisions are presented. The K π ratios are compared with results from a lower beam energy and are found to be remarkably similar. Evidence for secondary production of K + by meson-baryon rescattering is reviewed. Our results at y = 1.0–1.5 are compared with neutral strange particle results at midrapidity.

4 data tables

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Meson production in p + U, O + U and S + U interactions at 200-GeV/nucleon.

The NA38 collaboration Abreu, M.C. ; Baglin, C. ; Baldisseri, A. ; et al.
Z.Phys.C 55 (1992) 365-371, 1992.
Inspire Record 344266 DOI 10.17182/hepdata.14583

Meson production in proton, oxygen and sulphur interactions with uranium targets at 200 GeV/nucleon is studied. We measure the inclusive meson cross-section d σ/dPT2 and its evolution fromp+U to S+U. The cross-section fitted with an exponential gives an inverse slopePT0 of the order of 210 MeV/c. As a function of the neutral transverse energy,PT0 values show a slight rise followed by a plateau. The normalized difference (σ+−σ−)/σ− between positive and negative meson cross-sections is found to increase withET.

6 data tables

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Particle ratios of high x(t) hadrons in p A interactions at s**(1/2) = 38.8-GeV.

Straub, P.B. ; Jaffe, D.E. ; Glass, H.D. ; et al.
Phys.Rev.D 45 (1992) 3030-3037, 1992.
Inspire Record 342598 DOI 10.17182/hepdata.22727

We report measurements of the ratios K+π+, pπ+, K−π−, p¯π−, π−π+, K−K+, and p¯p for hadrons with 0.19<xt<0.62 produced in p−Be and p−W collisions at s=38.8 GeV. The K+π+ ratio at high xt gives the fragmentation-function ratio DuK+Duπ+ at high z. The high-xt K−π− ratio gives an upper limit for DdK−Ddπ− at high z. The pt dependence of pπ+ suggests that scattered constituent diquarks are the primary source of protons with pt<6 GeV/c. We also present species correlations in high-mass h+h− pairs. Strong K+K− and pp¯ correlations were observed.

50 data tables

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Measurement of kaons in the HELIOS experiment

The HELIOS collaboration van Hecke, Hubert ;
Nucl.Phys.A 525 (1991) 227C-230C, 1991.
Inspire Record 301896 DOI 10.17182/hepdata.36791

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5 data tables

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Mass-number dependence of proton, pi+, and K+ production in interactions between 10.1-GeV/c protons and nuclei.

Sibirtsev, A.A. ; Baranov, M.V. ; Voronin, S.V. ; et al.
Sov.J.Nucl.Phys. 47 (1988) 662-664, 1988.
Inspire Record 272924 DOI 10.17182/hepdata.17411

None

2 data tables

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A-dependence of Fragmentation of 9.2-{GeV} Protons on Nuclei. (In Russian)

Vorontsov, I.A. ; Safronov, G.A. ; Sibirtsev, A.A. ; et al.
MOSCOW INST. THEOR. EXP. PHYS. GKAE - ITEF-88-011 (88,REC.JUN.) 13p, 1988.
Inspire Record 266381 DOI 10.17182/hepdata.40096

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5 data tables

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K+ MESON PRODUCTION IN PROTON - NUCLEAR INTERACTIONS FROM Be, C, Cu, Sn, Pb IN THE ENERGY RANGE FROM 800-MeV TO 1000-MeV

Abrosimov, N.K. ; Volchenkov, V.A. ; Gridnev, A.B. ; et al.
LENINGRAD-85-1146, 1985.
Inspire Record 223390 DOI 10.17182/hepdata.37999

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6 data tables

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