Vlasov, A.V.
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Measurements of the Total $\pi$ He and $p$ He Cross-sections and the Slopes of the Forward Diffraction Peak at Energies From 50-{GeV} to 300-{GeV}

Burq, J.P. ; Chemarin, M. ; Chevallier, M. ; et al.
Nucl.Phys.B 187 (1981) 205, 1981.
Inspire Record 154079 DOI 10.17182/hepdata.34264

Differential cross sections for elastic scattering of pions and protons on helium have been measured at incident momenta ranging from 50 to 300 GeV/ c in the t -range 0.008 < | < | < 0.05 (GeV/ c ) 2 . Both recoil α-particles and forward particles were detected in this experiment. The experimental method provided an absolute normalization of the cross sections with an estimated precision of 1%. From the analysis of the data, the diffraction slope parameters and total cross sections have been obtained. The results are compared with Glauber model calculations.

17 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Polarization in Charge Exchange Reaction $\pi^- p \to \pi^0 n$ in Small Momentum Transfer Range at 40-{GeV}/$c$

Apokin, V.D. ; Avvakumov, I.A. ; Bagaturiya, Yu.Sh. ; et al.
Experientia Suppl. 38 (1981) 554, 1981.
Inspire Record 154047 DOI 10.17182/hepdata.11048

None

2 data tables
Table 1

AVERAGE TARGET POLARIZATION WAS 76 +- 3 PCT.

Table 2

No description provided.


Charged Current Events with Neutral Strange Particles in High Energy Antineutrino Interactions

Ammosov, V.V. ; Denisov, A.G. ; Ermolov, P.F. ; et al.
Nucl.Phys.B 177 (1981) 365-381, 1981.
Inspire Record 153884 DOI 10.17182/hepdata.42576

The results of a study of strange particle production in charged current $\bar{\nu}_{\mu} N$ interactions in the Fermilab 15 ft bubble chamber filled with a heavy $Ne-H_2$ mixture are presented. Production rates and average multiplicities of $K^0$'s and Λ's as functions of W 2 and Q 2 are given. The experimental data agree well with the quark-parton model predictions if a yield of 0.06 ± 0.02 of $K^0$'s and Λ's from charm production is included. Upper limits for D-meson production are given and the shape of the charmed quark fragmentation function is discussed. Inclusive production of the K ∗ (890) and Σ(1385) resonances is measured and it is shown that only about 5% of the K 0 mesons and Λ hyperons results from resonance decays. Relative production rates of neutral strange particles on proton and neutron targets are studied.

11 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Production of charged hadrons with large transverse momenta pp collisions at 70 GeV

Abramov, V.V. ; Alekseev, A.V. ; Baldin, B.Yu. ; et al.
JETP Lett. 33 (1981) 289, 1981.
Inspire Record 154714 DOI 10.17182/hepdata.70441

None

1 data table
Table 1

No description provided.


Study of the Inclusive Reactions $K^- p \to p$ X at 32-{GeV}/$c$

The French-Soviet & CERN-Soviet collaborations Babintsev, V.V. ; Borovikov, A.A. ; Buschbeck, B. ; et al.
Nucl.Phys.B 183 (1981) 29-52, 1981.
Inspire Record 154721 DOI 10.17182/hepdata.7921

In a K − p experiment at 32 GeV/ c with a sensitivity of 6 ev/≈b the inclusive reaction K − p → p + X was studied in the kinematical region x < −0.3. Most of the protons in this region were identified by ionization. Correcting for losses of the very slow as well as of the fast protons in this region we obtained σ p ( x < −0.3) = 5.9 ± 0.2 mb. The double invariant differential cross sections of protons were analysed in terms of the variables x , p T 2 , and M 2 / s , t , and the contributions from separate peripheral mechanisms were analysed. A triple-Regge analysis was performed on the inclusive proton d 2 σ /d t d( M 2 / s ) distribution with | t | < 1.1 GeV 2 . The fit with an RRP term resulted in an effective trajectory for the exchanged reggeon lying somewhat lower than that for the leading meson trajectory. Inclusion in the fit of an additional ππp term showed that pion exchange is important in the triple-Regge region at small | t |.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Measurement of the SU(3) Symmetry Violation in the Quark Jet

The Fermilab-Serpukhov-Moscow-Michigan collaboration Ammosov, V.V. ; Amrakhov, A.H. ; Denisov, A.G. ; et al.
Phys.Lett.B 93 (1980) 210-212, 1980.
Inspire Record 152994 DOI 10.17182/hepdata.42575

We have used the ratio between the production rates of $K^0$'s and $π^−$'s in antineutrino-nucleon interactions in the Fermilab 15 ft bubble chamber to measure the size of the SU (3) symmetry violation in the production of quark-antiquark pairs to be 0.27 ± 0.04. This value is significantly larger than the value obtained from a recent ep experiment. There is no apparent dependence of the $K^0$/$π^−$ ratio with $W^2 , Q ^2 , x_b$ or $p_T^2$ .

6 data tables
Table 1

OBTAINED RESULT FOR SIG/SIG IS MODEL DEPENDENT.

Table 2

No description provided.

Table 3

No description provided.

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Charged Multiplicity Distributions in Anti-n $p$ Interactions at 6-{GeV}/c

The Alma Ata-Dubna-Moscow-Prague-Serpukhov-Sofiya-Tbilisi-Helsinki collaboration Batyunya, B.V. ; Boguslavsky, I.V. ; Gramenitsky, I.M. ; et al.
JINR-E1-80-164, 1980.
Inspire Record 153456 DOI 10.17182/hepdata.39557

None

2 data tables
Table 1

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

Table 2

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


MEASUREMENT OF THE POLARIZATION ROTATION COEFFICIENT A IN THE P P SCATTERING AT 970-MEV. (IN RUSSIAN)

Vovchenko, V.G. ; Gorodnitsky, G.A. ; Zhdanov, A.A. ; et al.
Yad.Fiz. 32 (1980) 164-173, 1980.
Inspire Record 159796 DOI 10.17182/hepdata.18824

None

4 data tables
Table 1

Axis error includes +- 5/5 contribution (DUE TO ANALYZING POWER UNCERTAINTY).

Table 2

Axis error includes +- 5/5 contribution (DUE TO ANALYZING POWER UNCERTAINTY).

Table 3

Axis error includes +- 5/5 contribution (DUE TO ANALYZING POWER UNCERTAINTY).

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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

No description provided.


INVESTIGATIONS OF THE ANGULAR DISTRIBUTIONS OF PROTONS EMITTED FROM NUCLEI IN pi+, pi-. INTERACTIONS AT MOMENTA OF 1.2-GeV/c TO 7.0-GeV/c

Barkov, B.P. ; Bayukov, Yu.D. ; Bobchenko, B.M. ; et al.
ITEP-58-1980, 1980.
Inspire Record 154421 DOI 10.17182/hepdata.40307

None

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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