Measurement of the production cross section for charmed baryons in proton–nucleus interactions at 70 GeV

Аннотация

The results of an analysis of data from the SERP-Е-184 experiment devoted to studying mechanisms of the production of charmed particles in proton–nucleus interactions at 70 GeV and their decays are presented. The data in question were obtained upon irradiating the SVD-2 active target consisting of carbon, silicon, and lead plates with a beam of 70-GeV protons. A detailed simulation on the basis of the FRITIOF7.02 and GEANT3.21 code packages made it possible to optimize event-selection criteria and to calculate the detection efficiency for Λc+ baryons. After selecting a signal from the threebody decay of a Λc+ baryon, the inclusive cross section for its production at near-threshold energies, its lifetime, and the parameter of the A dependence of the cross section were found. The Λc+ -baryon yields are tabulated along with data from other experiments and theoretical predictions.

Авторлар туралы

V. Golovkin

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

S. Golovnia

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

S. Gorokhov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

N. Grishin

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

Ya. Grishkevich

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

G. Ermakov

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

P. Ermolov

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

I. Erofeeva

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

V. Zapolsky

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

E. Zverev

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

D. Karmanov

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

V. Kireev

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Kiriakov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Kramarenko

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

A. Kubarovsky

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

N. Kouzmine

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

L. Kurchaninov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

G. Lanshikov

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Leflat

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

M. Merkin

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

G. Mitrofanov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Petrov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

Yu. Petukhov

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Pleskach

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Popov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Ronjin

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Ryadovikov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Senko

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

M. Soldatov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

L. Tikhonova

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

N. Furmanec

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Kholodenko

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

Yu. Tsyupa

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

N. Shalanda

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

A. Yukaev

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

V. Yakimchuk

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Ryadovikov

Joint Institute for Nuclear Research

Хат алмасуға жауапты Автор.
Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Aleev

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

E. Ardashev

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

A. Afonin

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Balandin

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
Ресей, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

S. Basiladze

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

S. Berezhnev

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

G. Bogdanova

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

M. Bogolyubsky

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

A. Vischnevskaya

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

V. Volkov

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

A. Vorobiev

Institute for High Energy Physics

Email: riadovikov@ihep.ru
Ресей, pl. Nauki 1, Protvino, Moscow oblast, 142280

A. Voronin

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
Ресей, Moscow, 119991

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