Trebukhovsky, Yu.V.
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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
Table 1

No description provided.


Observation of subthreshold double strangeness production in anti-p annihilations on Xe nuclei: Search for stable H dibaryon

The Diana collaboration Barmin, V.V. ; Barylov, V.G. ; Chernukha, S.F. ; et al.
Nucl.Phys.A 558 (1993) 361C-368C, 1993.
Inspire Record 358877 DOI 10.17182/hepdata.20612

The double strangeness production has been observed in two final states of annihilation of antiprotons at momentum less than 0.9 GeV/ c on Xe nuclei: K + K + X (8 events) and K + K 0 ΛX (6 events). The probabilities of the reaction p Xe → K + K + X vary from 2 · 10 −5 (at rest) up to 7 · 10 −5 (in flight). The reaction p Xe → K + K 0 ΛX is observed only in flight with probability 3 · 10 −4 . The properties of the observed reactions are similar to those resulting from the cascade process with production of Ξ hyperon: p N → K ∗ −K ∗ , K ∗ → Kπ, −K ∗ N → ΞK, ΞN → ΛΛ . The new upper limit on the production probability of the stable H ( S = −2) dibaryon in the reaction Xe → K + K + H(H → Σ − p)X was obtained to be < 2 · 10 − (90% C . L .).

1 data table
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
Table 1

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Table 2

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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

None

5 data tables
Table 1

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Table 2

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Table 3

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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
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Table 3

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Measurement of the average cross-section of 0.06-GeV/c to 0.75-GeV/c anti-p annihilation on Xe nuclei

The DIANA collaboration Barmin, V.V. ; Barylov, V.G. ; Chernukha, S.F. ; et al.
Phys.Atom.Nucl. 57 (1994) 1835-1836, 1994.
Inspire Record 385048 DOI 10.17182/hepdata.17208

None

1 data table
Table 1

CROSS SECTION WAS ESTIMATED ASSUMING IT'S INDEPENDENCE OF THE ANTIPROTON M OMENTUM.


Production of fast deuterons in proton nucleus interactions at 2.5-GeV to 9.2-GeV.

Safronov, G.A. ; Baranov, M.V. ; Voronin, S.V. ; et al.
Sov.J.Nucl.Phys. 47 (1988) 966-969, 1988.
Inspire Record 272212 DOI 10.17182/hepdata.17350

None

2 data tables
Table 1

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Table 2

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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
Table 1

No description provided.

Table 2

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STUDY OF DIFFERENTIAL CROSS-SECTIONS FOR THE REACTIONS H-3 (P, N) HE-3 AND H-3 (P, P) H-3 AT THE TRITON MOMENTUM OF 2.5-GEV/C. (IN RUSSIAN)

Blinov, A.V. ; Vanyushin, I.A. ; Voitenko, I.D. ; et al.
Yad.Fiz. 35 (1982) 523-531, 1982.
Inspire Record 179833 DOI 10.17182/hepdata.2691

None

3 data tables
Table 1

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Table 2

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Table 3

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INVESTIGATION OF THE CHARGE EXCHANGE REACTION H-3 p ---> He-3 n AT 2.5-GeV/c TRITON MOMENTUM

Blinov, A.V. ; Chuvilo, I.V. ; Ergakov, V.A. ; et al.
J.Phys.G 8 (1982) 223, 1982.
Inspire Record 154213 DOI 10.17182/hepdata.40232

The differential cross sections d sigma /dt of the reactions 3H+p to 3He+n and 3H+p to 3H+p at a triton momentum of 2.5 GeV/c (equivalent to a proton kinetic energy Tp=318 MeV) have been measured. The ITEP 80 cm hydrogen bubble chamber was exposed to a 2.5 GeV/c separated triton beam. 2350 events of the reaction 3H(p,n)3He and 2574 events of the reaction 3H(p,p)3H were selected and analysed. Calculations performed in the framework of the multiple scattering theory taking the spin-isospin structure of the NN amplitude into account fit the data very well and show the high sensitivity of the charge-exchange cross section to the double spin-flip NN amplitudes.

2 data tables
Table 1

No description provided.

Table 2

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