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Abstract
BM@N (Baryonic Matter at Nuclotron) is the first experiment to be realized at the accelerator complex of NICA-Nuclotron at JINR (Dubna). The aim of the experiment is to study interactions of relativistic heavy ion beams of kinetic energy per nucleon ranging from 1 to 4.5 GeV with fixed targets. First results of the analysis of minimum bias interactions of the deuteron and carbon beams of 4 AGeV kinetic energy with different targets are discussed. Preliminary results from the data collected in the recent experimental run with the argon beam are also presented.
Highlights
The Baryonic Matter at Nuclotron (BM@N) is a new experiment designed to investigate properties of dense nuclear matter in nucleus-nucleus collisions
The maximum in the hypernuclei production rate is predicted at S NN ∼ 4-5 GeV, which is close to the Nuclotron beam energy range
The basic detector setup comprises the central tracker inside the analyzing magnet, outer tracker based on drift chambers (DCH) and cathode strip chambers (CSC), electro-magnetic calorimeter behind the magnet, two time-of-flight detectors, zero degree calorimeter (ZDC), start T0 and trigger detectors around the target
Summary
The Baryonic Matter at Nuclotron (BM@N) is a new experiment designed to investigate properties of dense nuclear matter in nucleus-nucleus collisions. The production yields of (anti-) hyperons and strange mesons measured in different experiments are shown in Fig. 1 (left). The maximum in the hypernuclei production rate is predicted at S NN ∼ 4-5 GeV, which is close to the Nuclotron beam energy range. Studies of hypernuclei production processes are expected to provide insight into the properties of the hyperon-nucleon and hyperon-hyperon interactions. In the latest three years the BM@N experiment recorded experimental data with the deuteron, carbon, argon and krypton beams. The first methodical paper describing Λ0hyperon reconstruction in interactions of the deuteron beam with different targets (December 2016) is published [4]. In the latest experimental run performed in March 2018 the research program included the measurement of inelastic reactions of the argon and krypton beams with various targets. The measurement was focused on hyperon reconstruction in the central tracker,
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