HEPData Search

The emission of protons from targets of Li6, Li, C12, Al27, Ca40, V51, Zr90, and Pb under bombardment from 800 MeV protons has been studied using a high resolution proton spectrometer. Spectra were measured at laboratory scattering angles of 5°, 7°, 9°, 11°, 13°, 15°, 20°, 25°, and 30° with special emphasis on the quasifree region. Outgoing momenta corresponding to the region of pion production were examined at 11° and 15°. Absolute cross sections have been derived by reference to known (p,p) scattering data at 800 MeV. The quasifree scattering has been compared to a distorted-wave impulse approximation analysis by summing over the unobserved (struck) nucleon. The systematics of proton production and the applicability of the distorted-wave impulse approximation analyses are discussed. NUCLEAR REACTIONS (p,p′) on Li6, Li, C12, Al27, Ca40, V51, Zr90, Pb; Ep=800 MeV, θL=5° to 30°; quasielastic scattering, DWIA analysis.

50 data tables

Table 1

APPROXIMATE SYSTEMATIC CROSS SECTION ERROR IS EQUAL TO +-6.5%.

Table 2

APPROXIMATE SYSTEMATIC CROSS SECTION ERROR IS EQUAL TO +-6.5%.

Table 3

APPROXIMATE SYSTEMATIC CROSS SECTION ERROR IS EQUAL TO +-6.2%.

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Negative Hyperon Production in High-Energy Proton Interactions

Hungerbuhler, V. ; Majka, R. ; Marx, J.N. ; et al.

Phys.Rev.D 12 (1975) 1203-1210, 1975.

Inspire Record 104138 DOI 10.17182/hepdata.4668

Momentum spectra for forward Σ− and Ξ− production by protons on beryllium are presented. Σ− production data for two primary proton momenta are compared to test scaling of the invariant cross section. In addition, the observed single-particle momentum distributions are compared with single-particle spectra from other inclusive reactions initiated by protons.

6 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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The energy dependence of the pp->K+ n Sigma+ reaction close to threshold

Valdau, Yu. ; Barsov, S. ; Buscher, M. ; et al.

Phys.Rev.C 81 (2010) 045208, 2010.

Inspire Record 846092 DOI 10.17182/hepdata.55315

The production of the Sigma+ hyperon through the pp->K+nSigma+ reaction has been investigated at four energies close to threshold, 1.826, 1.920, 1.958, and 2.020 GeV. At low energies, correlated K+pi+ pairs can only originate from Sigma+ production so that their measurement allows the total cross section for the reaction to be determined. The results obtained are completely consistent with the values extracted from the study of the K+-proton correlation spectra obtained in the same experiment. These spectra, as well as the inclusive K+ momentum distributions, also provide conservative upper limits on the Sigma+ production rates. The measurements show a Sigma+ production cross section that varies roughly like phase space and, in particular, none of the three experimental approaches used supports the anomalously high near-threshold pp->K+ nSigma+ total cross section previously reported [T. Rozek et al., Phys. Lett. B 643, 251 (2006)].

6 data tables

Table 1

The K+ double-differential cross section at each of the 5 beam energies intgerated over momentum bins of width +- 12 MeV/c. Note the errors do not include the 7 PCT systematic uncertainty coming from the normalization.

Table 2

Total cross section for the P P --> K+ P LAMBDA.

Table 3

Total cross section for the P P --> K+ P SIGMA0.

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MEASUREMENT OF PRODUCTION CROSS-SECTION FOR HADRONS WITH MOMENTA UP TO 2-GEV/C IN PROTON NUCLEUS COLLISIONS AT 70-GEV. (IN RUSSIAN)

Barkov, L.M. ; Kotov, V.I. ; Lebedev, P.K. ; et al.

Sov.J.Nucl.Phys. 37 (1983) 732, 1983.

Inspire Record 183493 DOI 10.17182/hepdata.71230

None

18 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Yield of Secondary Particles at an Angle of 188-Mrad at the ITEP Synchrotron

Belikov, Yu.E. ; Buklei, A.E. ; Gavrilov, V.B. ; et al.

ITEP-31-1977, 1977.

Inspire Record 121163 DOI 10.17182/hepdata.40348

None

2 data tables

Table 1

No description provided.

Table 2

No description provided.

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

Table 1

No description provided.

Table 2

No description provided.

Pion Production by Protons on a Thin Beryllium Target at 6.4, 12.3, and 17.5 GeV/c Incident Proton Momenta

The E910 collaboration Chemakin, I. ; Cianciolo, V. ; Cole, B.A. ; et al.

Phys.Rev.C 77 (2008) 015209, 2008.

Inspire Record 755923 DOI 10.17182/hepdata.51393

An analysis of inclusive pion production in proton-beryllium collisions at 6.4, 12.3, and 17.5 GeV/c proton beam momentum has been performed. The data were taken by Experiment 910 at the Alternating Gradient Synchrotron at the Brookhaven National Laboratory. The differential $\pi^+$ and $\pi^-$ production cross sections ($d^2\sigma/dpd\Omega$) are measured up to 400 mRad in $\theta_{\pi}$ and up to 6 GeV/c in $p_{\pi}$. The measured cross section is fit with a Sanford-Wang parameterization.

16 data tables

Table 1

Pion production cross section for 6.4 GeV incident protons.

Table 2

Pion production cross section for 6.4 GeV incident protons.

Table 3

Pion production cross section for 6.4 GeV incident protons.