Kladnitskaya, E.N.
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Study of charm photoproduction mechanisms

The NA14/2 collaboration Alvarez, M.P. ; Barate, R. ; Bloch, D. ; et al.
Z.Phys.C 60 (1993) 53-62, 1993.
Inspire Record 333271 DOI 10.17182/hepdata.14331

This paper presents results on charm photoproduction in the energy interval 40 to 160 GeV, obtained from the high-statistics charm samples of the NA 14/2 experiment at CERN. We measure the charm cross-section, the distributions inxF andp2T and various production ratios and charge asymmetries. The total non-diffractive open-charm cross-section per nucleon is measured to be\(\sigma _{(\gamma N \to c\bar cX)} \) at 〈Eγ〉 =100 GeV. We discuss the photoproduction of charm in terms of theoretical and phenomenological models. We compare the measuredp2T andxF distributions with first-order QCD calculations of photon-gluon fusion and obtain a value for the charm-quark mass ofmc=1.5+0.2−0.1GeV/c2.

10 data tables
Table 1

D0 cross section assuming branching ratio of D0 --> K- PI+ of 3.65 +- 0.21 PCT.

Table 2

D+(-) cross section assuming branching ratio of D+ --> K- PI+ PI+ of 8.0 +0.8,-0.7 PCT.

Table 3

Total non diffractive open charm production cross section allowing for contributions for other charmed particles (D/S and LAMBDA/C). Comparison of data with first order QCD leads to a predicted charm quark mass of 1.5 +0.2,-0.1 GeV.

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PRODUCTION OF K*+- (1385) AND SIGMA*+- (1385) AND anti-SIGMA*+- (1385) RESONANCES IN pi- p INTERACTIONS AT 40-GeV/c

Kladnitskaya, E.N. ; Popova, V.M. ; Toneeva, G.P. ;
Sov.J.Nucl.Phys. 38 (1983) 75, 1983.
Inspire Record 181383 DOI 10.17182/hepdata.9946

None

7 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Production of $K^0$ Mesons, $\Lambda$ and $\bar{\Lambda}$ Hyperons in $\pi^- p$ Interactions at 40-{GeV}/$c$

Angelov, N.S. ; Dzhmukhadze, S.V. ; Kladnitskaya, E.N. ; et al.
Sov.J.Nucl.Phys. 34 (1981) 686, 1981.
Inspire Record 164733 DOI 10.17182/hepdata.39141

None

25 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Multiplicity and Inclusive Spectra of $\gamma$ Quanta in $\pi^- p$ Interactions With the Production of Strange Particles

Dzhmukhadze, S.V. ; Kladnitskaya, E.N. ; Popova, V.M. ; et al.
Sov.J.Nucl.Phys. 34 (1981) 692, 1981.
Inspire Record 158399 DOI 10.17182/hepdata.39206

None

9 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Production of Two $\Lambda$ Hyperons in $\pi$ C-12 Interactions at 40-{GeV}/$c$

Dzhmukhadze, S.V. ; Kladnitskaya, E.N. ; Popova, V.M. ; et al.
Sov.J.Nucl.Phys. 32 (1980) 812, 1980.
Inspire Record 154156 DOI 10.17182/hepdata.18008

None

12 data tables
Table 1

NONQUASINUCLEON SCATTERING. OBTAINED BY SUBTRACTION PI- NUCLEON EVENTS FROM PI- C INTERACTIONS. FOR THE SAKE OF SIMPLICITY DENOTED PI- C.

Table 2

No description provided.

Table 3

No description provided.

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Polarization of $\Lambda$ Hyperons Produced in the $\pi^-$ Propane Interaction at $P (\pi^-) = 40$-{GeV}/

Dzhmukhadze, S.V. ; Kladnitskaya, E.N. ; Popova, V.M. ; et al.
Sov.J.Nucl.Phys. 33 (1981) 81-83, 1981.
Inspire Record 154889 DOI 10.17182/hepdata.17860

None

1 data table
Table 1

Axis error includes +- 0.0/0.0 contribution (?////).


anti-LAMBDA HYPERON PRODUCTION IN pi- p, pi- n AND pi- C-12 INTERACTIONS

Dzhmukhadze, S.V. ; Dasaeva, M.A. ; Kladnitskaya, E.N. ; et al.
Sov.J.Nucl.Phys. 31 (1980) 210, 1980.
Inspire Record 143366 DOI 10.17182/hepdata.18158

None

15 data tables
Table 1

No description provided.

Table 2

INTERACTION WITH QUAZI FREE NUCLEONS ARE REJECTED.

Table 3

No description provided.

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Study of pi- n and pi- C-12 Interactions Involving Strange Particles at the Momentum of 40-GeV/c

Angelov, N. ; Vishnevskaya, K.P. ; Grishin, V.G. ; et al.
Yad.Fiz. 24 (1976) 732-741, 1976.
Inspire Record 100544 DOI 10.17182/hepdata.18228

None

5 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Study of pi- Meson Elastic Scattering by Protons at Small Angles

Apokin, V.D. ; Derevshchikov, A.A ; Matulenko, Yu.A. ; et al.
Yad.Fiz. 21 (1975) 1240-1246, 1975.
Inspire Record 103333 DOI 10.17182/hepdata.19099

None

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

IM(AMP) VIA OPTICAL THEOREM FROM TOTAL CROSS SECTIONS OF L. M. VASILYEV ET AL., PL 36B, 528 (1971).


Small-Angle pi- p Elastic Scattering Measurements

Apokin, V.D. ; Derevshchikov, A.A. ; Matulenko, Yu.A. ; et al.
Phys.Lett.B 56 (1975) 391-394, 1975.
Inspire Record 90800 DOI 10.17182/hepdata.27866

We have measured small angle elastic pion-proton scattering in 40 and 50 GeV c π − beams at Serpukhov. Analysis of the data in the Coulomb interference region yields a value for the ratio of the real to the imaginary part of the strong amplitude, ϱ (0)=−0.074 ± 0.033 at 40 GeV/ c and ϱ (0)=−0.006 ±0.026 at 50 GeV/ c

2 data tables
Table 1

STATISTICAL ERRORS ONLY.

Table 2

STATISTICAL ERRORS ONLY.