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The $\Lambda(c$)+ Baryon Production in Interactions of 40-{GeV} to 70-{GeV} Neutrons With Carbon Nuclei

The Dubna-Berlin-Budapest-Moscow-Prague-Sofiya-Tbilisi collaboration Aleev, A.N. ; Arefev, V.A. ; Balandin, V.P. ; et al.

Z.Phys.C 23 (1984) 333, 1984.

Inspire Record 196745 DOI 10.17182/hepdata.16228

The inclusive production of charmed baryonsΛc+ by 40–70 GeV neutrons on carbon has been observed. The decays$\Lambda _c^ + \to \bar K^0 p\pi ^ + \pi ^ -$ (130 ± 18 events) andΛc+→Λ0π+π+π− (57±14 events) have been detected. The mean value ofΛc+ mass is (2,268±6) MeV/c2. The invariant cross section forX>0.5 is described byE·d3σ/dp3∝ exp(−)bPT·(1−X)n withb=(2.5±0.6) (GeV/c)−1 andn=(1.5±0.5).

2 data tables

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PRELIMINARY RESULTS FROM THE NEUTRAL DETECTOR AT VEPP-2M

Bukin, A.D. ; Vasserman, I.B. ; Vorobev, P.V. ; et al.

IYF-83-80, 1983.

Inspire Record 192041 DOI 10.17182/hepdata.37136

None

1 data table

Table 1

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

MEASUREMENT OF THE SPECTATOR PROTON YIELD AT 0 ANGLE IN THE DEUTERON STRIPPING REACTION ON CARBON AT 8.9-GeV/c. (IN RUSSIAN)

Ableev, V.g. ; Vorobev, G.g. ; Zaporozhets, S.a. ; et al.

Yad.Fiz. 37 (1983) 132-136, 1983.

Inspire Record 192436 DOI 10.17182/hepdata.38079

The invariant cross section of the reaction of deuteron stripping on carbon target has been measured at a deuteron momentum of 8.9 GeV/c. The cross section is obtained at a zero detection angle of the stripping proton: E/p2xd2σ/dpdΩ=(281+-9)xbxGeV/srx(GeV/c)3. This value is consistent with the one calculated in the framework of the Bertocci-Treleani model of deuteron fragmentation. When the method of Nissen-Meyer is used for orthogonalization of the wave functions of primary deuteron and the (np) system, resulting from its disintegration, a similar calculation gives the result, which is 1.4 times larger than the measured value. Distribution in the cosine of angle of proton yield at the fixed proton momentum p turned out to be near to isotropy one and distribution in p at the fixed cos theta has the maximum at p=50 MeV/c

3 data tables

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DELTA ISOBAR EXCITATION IN CARBON NUCLEI AT 4.4-GEV/C - 10.7-GEV/C IN CHARGE EXCHANGE REACTION (HE-3, T).

The DUBNA-MOSCOW-KIEV-DUSHANBE collaboration Ableev, V.G. ; Kobushkin, A.P. ; Kurepin, A.B. ; et al.

Conf.Proc.C 830821V2 (1983) 267-268, 1983.

Inspire Record 194973 DOI 10.17182/hepdata.39517

None

2 data tables

Table 1

No description provided.

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No description provided.

DIFFRACTIVE PRODUCTION OF A NARROW BARYON IN NEUTRON CARBON INTERACTIONS

The BIS-2 collaboration Aleev, A.N. ; Arefev, V.A. ; Balandin, V.P. ; et al.

Dubna Jinr - 83-602 (83,REC.NOV.) 6p, 1983.

Inspire Record 196394 DOI 10.17182/hepdata.39600

None

6 data tables

Table 1

No description provided.

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DIFFRACTIVE K0 LAMBDA0 PRODUCTION BY NEUTRONS WITH 40-GeV/c MEAN MOMENTUM

The BIS-2 collaboration Aleev, A.N. ; Arefev, V.A. ; Balandin, V.P. ; et al.

PHE 83-1, 1983.

Inspire Record 190017 DOI 10.17182/hepdata.31222

None

1 data table

Table 1

No description provided.

EXPERIMENTAL STUDIES OF THE SIGMA, T, P POLARIZATION PARAMETERS AND THE GAMMA P ---> P PI0 REACTION MULTIPOLE ANALYSIS IN THE FIRST RESONANCE REGION

Belyaev, A.a. ; Getman, V.a. ; Gorbenko, V.g. ; et al.

Nucl.Phys.B 213 (1983) 201-222, 1983.

Inspire Record 192457 DOI 10.17182/hepdata.34021

A description is given of the experimental techniques and investigation results of the parameters Σ , T , P for the γ p→p π 0 reaction using linear polarized photons and a polarized proton target. The measurements have been made in the photon energy range 280–450 MeV at pion c.m. angles between 60° and 135°. The new experimental data are used in an energy-independent channel multipole analysis without the Watson theorem.

8 data tables

Table 1

No description provided.

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INCLUSIVE K0(S) LAMBDA AND anti-LAMBDA PRODUCTION IN anti-p p INTERACTIONS AT 22.4-GeV/c

The Alma Ata-Dubna-Helsinki-Moscow-Prague-Tbilisi collaboration Batyunya, B.V. ; Boguslavsky, I.V. ; Gramenitsky, I.M. ; et al.

Z.Phys.C 25 (1984) 213, 1984.

Inspire Record 194651 DOI 10.17182/hepdata.2004

InclusiveKs0, Λ and$\bar \Lambda$-production has been investigated in$\bar p$p-interactions at 22.4 GeV/c. Total and topological cross sections and multiplicity characteristics of neutral strange particles have been determined. DifferentialKs0 and Λ-cross sections and also characteristics of annihilation processes with neutral kaon production have been studied. It is shown that the difference of the shapes of the invariantx-distributions forK-mesons in the fragmentation region for annihilation and non-annihilation processes can be described in the framework of the “dual” valon model, but not by considering the current (undressed) quark recombination mechanisms only. The polarization of Λ and$\bar \Lambda$-hyperons has been measured.

4 data tables

Table 1

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