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

被引：2
|
作者：
Ryadovikov, V. N. [1 ]
机构：
[1] Kurchatov Inst, Natl Res Ctr, Inst High Energy Phys, Pl Nauki 1, Protvino 142280, Moscow Oblast, Russia
来源：
PHYSICS OF ATOMIC NUCLEI | 2016年 / 79卷 / 02期
关键词：
LAMBDA-C; SQUARE-ROOT-S=62 GEV; PA INTERACTIONS; COLLISIONS; NEUTRONS; MESONS; SEARCH; CARBON;
D O I：
10.1134/S1063778816020150
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The results of an analysis of data from the SERP-D center dot-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 I > (c) (+) baryons. After selecting a signal from the threebody decay of a I > (c) (+) 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 I > (c) (+) -baryon yields are tabulated along with data from other experiments and theoretical predictions.
引用
收藏
页码：144 / 154
页数：11
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