Sibirtsev, A.A.
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New upper limits for H particle production in anti-p Xe annihilation at low-energy

Barmin, V.V. ; Barylov, V.G. ; Chernukha, S.F. ; et al.
Phys.Lett.B 370 (1996) 233-238, 1996.
Inspire Record 429472 DOI 10.17182/hepdata.28391

A study of the reactions p Xe → K + K + X , p Xe → K + H(H → Σ − p)X and p Xe → K + K + H(H → Σ − p)X was performed using the 700-litre xenon bubble chamber DIANA, exposed to the 1 GeV/ c antiproton beam of ITEP (Moscow). From a sample of 7.8 · 10 5 antiproton annihilations at low energy in xenon nuclei 4 events were observed for the reaction p Xe | → K + K + X at rest ( P p ≤ 400 MeV /c ) and 8 for the same reaction in flight ( 400 ≤ P p ≤ 900 MeV /c ). The corresponding probabilities turned out to be 3.1 · 10 −5 and 3.4 · 10 −5 , respectively. No H -event was found in the two semi-inclusive reactions p Xe → K + HX and p Xe → K + K + HX . This lead to the upper limits 6 · 10 −6 and 8 · 10 −6 (90% C.L.), respectively. The corresponding upper limit for the fully inclusive reaction p Xe → HX turned out to be 1.2 · 10 −5 (90% C.L.), which is about one order of magnitude lower than the actual value reported in the literature.

1 data table match query
Table 1

No description provided.


ANTI-PROTON CREATION WITH A MOMENTUM FROM 1.25-GEV/C TO 5-GEV/C IN PROTON INTERACTIONS OF 10.1-GEV/C MOMENTUM WITH BE, AL, CU AND TA NUCLEI. (IN RUSSIAN)

Voronin, S.V. ; Vorontsov, I.A. ; Safronov, G.A. ; et al.
MOSCOW INST. THEOR. EXP. PHYS. - ITEF-88-117 (88,REC.JAN.89) 23p, 1988.
Inspire Record 270428 DOI 10.17182/hepdata.40060

None

2 data tables match query
Table 1

No description provided.

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No description provided.


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

None

5 data tables match query
Table 1

No description provided.

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MEASUREMENT OF INCLUSIVE CROSS-SECTIONS pi-, pi+, p, H-2, H-3, He-3 AT ANGLE of 3.5-degrees IN THE INTERACTION OF 10.1-GeV/c PROTONS WITH Be, Al, Cu, Ta AND COMPARISON WITH THE FUSION MODELS

Vorontsov, I.A. ; Ergakov, V.A. ; Safronov, G.A. ; et al.
ITEP-83-085, 1983.
Inspire Record 192084 DOI 10.17182/hepdata.40192

None

6 data tables match query
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No description provided.

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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 match query
Table 1

No description provided.

Table 2

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Production of a Lambda K0 pair in neutron nucleus interactions

Alekseev, A.N. ; Berezin, V.M. ; Bogdanov, E.T. ; et al.
Sov.J.Nucl.Phys. 54 (1991) 977-981, 1991.
Inspire Record 326672 DOI 10.17182/hepdata.40022

None

1 data table match query
Table 1

ABSENT OF AN ABSOLUTE NEUTRON FLUX NORMALIZATION DIDN'T ALLOWED TO DEFINE THE CROSS-SECTION OF LAMBDA-K0-PARE PRODUCTION,SO IT WAS DEFINED THE RELATION OF CARBON AND CUPRUM CROSS-SECTION.


Search for an H dibaryon

Alekseev, A.N. ; Berezin, V.M. ; Bogdanov, E.T. ; et al.
Sov.J.Nucl.Phys. 52 (1990) 1016-1018, 1990.
Inspire Record 310395 DOI 10.17182/hepdata.17311

None

1 data table match query
Table 1

The cross-section obtained in the paper is the model dependent estimation.


rivet Analysis
QCD analyses and determinations of alpha(s) in e+ e- annihilation at energies between 35-GeV and 189-GeV.

The JADE & OPAL collaborations Pfeifenschneider, P. ; Biebel, O. ; Movilla Fernandez, P.A. ; et al.
Eur.Phys.J.C 17 (2000) 19-51, 2000.
Inspire Record 513337 DOI 10.17182/hepdata.12882

We employ data taken by the JADE and OPAL experiments for an integrated QCD study in hadronic e+e- annihilations at c.m.s. energies ranging from 35 GeV through 189 GeV. The study is based on jet-multiplicity related observables. The observables are obtained to high jet resolution scales with the JADE, Durham, Cambridge and cone jet finders, and compared with the predictions of various QCD and Monte Carlo models. The strong coupling strength, alpha_s, is determined at each energy by fits of O(alpha_s^2) calculations, as well as matched O(alpha_s^2) and NLLA predictions, to the data. Matching schemes are compared, and the dependence of the results on the choice of the renormalization scale is investigated. The combination of the results using matched predictions gives alpha_s(MZ)=0.1187+{0.0034}-{0.0019}. The strong coupling is also obtained, at lower precision, from O(alpha_s^2) fits of the c.m.s. energy evolution of some of the observables. A qualitative comparison is made between the data and a recent MLLA prediction for mean jet multiplicities.

80 data tables match query
Table 1

Overall result for ALPHAS at the Z0 mass from the combination of the ln R-matching results from the observables evolved using a three-loop running expression. The errors shown are total errors and contain all the statistics and systematics.

Table 2

Weighted mean for ALPHAS at the Z0 mass determined from the energy evolutions of the mean values of the 2-jet cross sections obtained with the JADE and DURHAMschemes and the 3-jet fraction for the JADE, DURHAM and CAMBRIDGE schemes evaluted at a fixed YCUT.. The errors shown are total errors and contain all the statistics and systematics.

Table 3

Combined results for ALPHA_S from fits of matched predicitions. The first systematic (DSYS) error is the experimental systematic, the second DSYS error isthe hadronization systematic and the third is the QCD scale error. The values of ALPHAS evolved to the Z0 mass using a three-loop evolution are also given.

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a0(980)+ resonance production in p p --> d K+ anti-K0 reactions close to threshold.

Kleber, V. ; Buescher, Markus ; Chernyshev, V. ; et al.
Phys.Rev.Lett. 91 (2003) 172304, 2003.
Inspire Record 617741 DOI 10.17182/hepdata.31682

The reaction pp->d K+ Kbar0 has been investigated at an excess energy of Q=46 MeV above the (K+ Kbar0) threshold with ANKE at COSY-Juelich. From the detected coincident dK+ pairs about 1000 events with a missing Kbar0 were identified, corresponding to a total cross section of sigma(pp->d K+ Kbar0)=(38 +/- 2(stat) +/- 14(syst)) nb. Invariant-mass and angular distributions have been jointly analyzed and reveal s-wave dominance between the two kaons, accompanied by a p-wave between the deuteron and the kaon system. This is interpreted in terms of a0+(980)-resonance production.

6 data tables match query
Table 1

Total cross section for P P --> DEUT K+ KBAR0.

Table 2

Centre of mass angular distribution of the deuteron with respect to the direction of the incoming proton.

Table 3

Centre of mass angular distribution of the vector joining the K+ and KBAR0 with respect to the direction of the incoming proton.

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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 match query
Table 1

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

Table 2

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

Table 3

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