Chernenko, L.P.
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Limiting Fragmentation in Oxygen Induced Emulsion Interactions at 14.6-a/{GeV}, 60-a/{GeV} and 200-a/{GeV}

The EMU01 collaboration Adamovich, M.I. ; Aggarwal, M.M. ; Arora, R. ; et al.
Phys.Rev.Lett. 62 (1989) 2801, 1989.
Inspire Record 268021 DOI 10.17182/hepdata.20041

Pseudorapidity distributions of relativistic singly charged particles in oxygen-induced emulsion interactions at 14.6, 60, and 200 GeV/nucleon are studied. Limiting fragmentation behavior is observed in both the target and projectile fragmentation regions for a central as well as for a minimum-bias sample. Comparisons with the fritiof model reveal that the picture of fragmenting strings successfully describes the observed data.

2 data tables
Table 1

NUCLEUS IS AVERAGE NUCLEUS OF EMULSION.

Table 2

NUCLEUS IS AVERAGE NUCLEUS OF EMULSION.


Measurement of the Spin Rotation Parameter, Beta, in the Reaction $\pi^+ p \to K^+ \Sigma^+$ at 1.60-{GeV}/$c$ and 1.88-{GeV}/$c$

Candlin, D.J. ; Lowe, D.C. ; Peach, K.J. ; et al.
Nucl.Phys.B 311 (1989) 613-629, 1989.
Inspire Record 263837 DOI 10.17182/hepdata.33220

Values of the spin-rotation parameter, β, are measured in the reaction π + p → K + Σ + at incident pion momenta of 1.69 and 1.88 GeV/ c .

2 data tables
Table 1

No description provided.

Table 2

No description provided.


$\bar{p} p$ Annihilation Into $\pi^+ \pi^-$ and $K^+ K^-$ From Atomic $p$ States

The ASTERIX collaboration Doser, M. ; Botlo, M. ; Ahmad, S. ; et al.
Nucl.Phys.A 486 (1988) 493-511, 1988.
Inspire Record 261310 DOI 10.17182/hepdata.37012

We have obtained the branching ratios for p p annihilation at rest into π + π − and K + K − in a pure p p initial angular momentum state L = 1. A gaseous hydrogen target at normal pressure and temperature was used and events associated with transitions of the antiprotonic atom to the 2p level were selected by detecting the Balmer X-ray series. The branching ratios for p p annihilation into π + π − and K + K − from the 2p state are (4.81 ± 0.49) × 10 −3 and (2.87 ± 0.51) × 10 −4 , respect The pion yield is slightly larger than in liquid hydrogen, where L = 0 annihilation dominates, while the kaon yield is suppressed by a factor of four. Using these and previous data, we derive the branching ratios for pp annihilation into all ππ and K K modes from S and P states. A measurement in gaseous hydrogen, without X-ray requirement, yields the branching ratios (4.30 ± 0.14) × 10 −3 and (6.92 ± 0.41) × 10 −4 . With the known branching ratios of (3.33 ± 0.17) × 10 −3 and (1.01 ± 0.05) × 10 −3 in liquid hydrogen, we find that (50.3 ± 6.4)% of all annihilations in gas at NTP occur in the initial angular momentum state L = 1.

2 data tables
Table 1

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

Table 2

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


Correlations Among Particles Produced in Proton Interactions With Emulsion Nuclei at 800-{GeV}

Barbier, L.M. ; Jones, W.V. ; Wefel, J.P. ; et al.
Phys.Rev.D 37 (1988) 1113, 1988.
Inspire Record 256580 DOI 10.17182/hepdata.3823

Correlations among the produced particles in interactions of 800-GeV protons with nuclei in photographic emulsion provide evidence for nonindependent production of the secondary particles. Assuming particle production in clusters, the analysis implies an average multiplicity of about 3 charged particles per cluster.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

IN THIS TABLE ETARAP(P=3)=ETARAP(P=4).

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The Study of Two-particle Correlations in Inelastic Interactions of Neon-22 Nuclei With Emulsion at 4.1-{GeV}/$c^-$per-nucleon

The Alma Ata-Bucharest-Leningrad-Dubna-Dushanbe-Yerevan-Kosice-Cracow - Leningrad-Moscow-Tashkent-Tbilisi-Ulan Bator-Zernograd collaboration Krasnov, S.A. ; Tolstov, K.D. ; Shabratova, G.S. ; et al.
Sov.J.Nucl.Phys. 47 (1988) 834-840, 1988.
Inspire Record 250785 DOI 10.17182/hepdata.9500

None

20 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Study of Elastic $\pi^+ p$, $K^+ p$ and $p p$ Scattering at 250-{GeV}/$c$

The NA22 collaboration Adamus, M. ; Ajinenko, I.V. ; Agababyan, N.M. ; et al.
Phys.Lett.B 186 (1987) 223-226, 1987.
Inspire Record 246909 DOI 10.17182/hepdata.40833

Results are presented on π + p and K + p elastic scattering at 250 GeV/ c , the highest momentum so far reached for positive meson beams. The experiment (NA22) was performed with the european hybrid spectrometer. The π + p elastic cross section stays constant with energy while the K + p cross section increases.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

ERRORS IN ELASTIC CROSS SECTIONS INCLUDE SYSTEMATIC ERRORS.

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Charged Particle Multiplicity and Angular Distributions in Proton Emulsion Interactions at 800-{GeV}

The BATON ROUGE-CRACOW-MOSCOW-TASHKENT collaboration Abduzhamilov, A. ; Barbier, L. ; Chernova, L.P. ; et al.
Phys.Rev.D 35 (1987) 3537-3540, 1987.
Inspire Record 254225 DOI 10.17182/hepdata.3930

The interaction of 800-GeV protons in nuclear emulsion has been investigated. The multiplicities and angular distributions of charged particles emitted by both the projectile and the target nucleus have been measured for 1718 inelastic events and are compared with the data obtained in proton-emulsion collisions at 67, 200, and 400 GeV. The target excitation is found to be independent of energy while the production of secondary particles continues to increase with incident proton energy.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


New Results From Asp on Single Photon Production at $\sqrt{s}$ 29-{GeV}

Hearty, C. ; Rothberg, J.E. ; Young, K.K. ; et al.
Phys.Rev.Lett. 58 (1987) 1711, 1987.
Inspire Record 244697 DOI 10.17182/hepdata.20171

This Letter reports results of a search for radiative production, by e+e− annihilation of particles that interact only weakly in matter. The search has been made in the total data set of 115 pb−1 acquired with the ASP detector at the SLAC storage ring PEP (s=29 GeV). No anomalous signal was observed. The number of generations of light neutrinos has been limited to Nν<7.5 (90% confidence level). Limits are also placed on the masses of particles predicted to exist by models of supersymmetry.

1 data table
Table 1

No description provided.


Fragmentation of Neon-22 Relativistic Nuclei on Photoemulsion Nuclei

The Alma Ata-Bucharest-Leningrad-Dubna-Dushanbe-Yerevan- Kosice-Cracow-Leningrad-Moscow-Tashkent-Tbilisi-Ulan Bator-Zernograd collaboration Andreeva, N.P. ; Anzon, Z.V. ; Bubnov, V.I. ; et al.
Sov.J.Nucl.Phys. 47 (1988) 102-108, 1988.
Inspire Record 239909 DOI 10.17182/hepdata.38972

None

4 data tables
Table 1

NUCLEUS IS THE NUCLEUS OF EMULSION.

Table 2

NUCLEUS IS THE NUCLEUS OF EMULSION.

Table 3

NUCLEUS IS THE NUCLEUS OF EMULSION.

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Inclusive $\pi^0$ Production in $\pi^+ p$, $K^+ p$ and $p p$ Interactions at 250-{GeV}/$c$

The NA22 collaboration Aiinenko, I.V. ; Atayan, M.R. ; Belokopytov, Yu. A. ; et al.
Z.Phys.C 35 (1987) 7, 1987.
Inspire Record 240345 DOI 10.17182/hepdata.40897

Data are presented on inclusive π0 production in the forward c.m. hemisphere (xF>0.025) in π+p,K+p andpp interactions at 250 GeV/c. These data are compared to results at other energies and interpreted in terms of quark-parton models.

4 data tables
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