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

详细

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.

作者简介

V. Golovkin

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

S. Golovnia

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

S. Gorokhov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

N. Grishin

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

Ya. Grishkevich

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

G. Ermakov

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

P. Ermolov

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

I. Erofeeva

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

V. Zapolsky

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

E. Zverev

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

D. Karmanov

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

V. Kireev

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Kiriakov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Kramarenko

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

A. Kubarovsky

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

N. Kouzmine

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

L. Kurchaninov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

G. Lanshikov

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Leflat

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

M. Merkin

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

G. Mitrofanov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Petrov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

Yu. Petukhov

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Pleskach

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Popov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Ronjin

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Ryadovikov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Senko

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

M. Soldatov

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

L. Tikhonova

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

N. Furmanec

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Kholodenko

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

Yu. Tsyupa

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

N. Shalanda

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

A. Yukaev

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

V. Yakimchuk

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Ryadovikov

Joint Institute for Nuclear Research

编辑信件的主要联系方式.
Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

A. Aleev

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

E. Ardashev

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

A. Afonin

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

V. Balandin

Joint Institute for Nuclear Research

Email: riadovikov@ihep.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

S. Basiladze

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

S. Berezhnev

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

G. Bogdanova

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

M. Bogolyubsky

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

A. Vischnevskaya

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

V. Volkov

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

A. Vorobiev

Institute for High Energy Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, pl. Nauki 1, Protvino, Moscow oblast, 142280

A. Voronin

Skobeltsyn Institute of Nuclear Physics

Email: riadovikov@ihep.ru
俄罗斯联邦, Moscow, 119991

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