First glance at the tracking detectors data collected in the first BM@N SRC run

Sergey Khabarov,Nikolay Voytishin,Alexander Makankin,Elena Kulish,Maria Patsyuk,Sergey Vasiliev,Anna Maksymchuk,Aleksander Vishnevskij,Vladimir Palichik,Vasilisa Lenivenko

doi:10.1051/epjconf/201920104002

Sergey Khabarov, Nikolay Voytishin + Show 8 more

Open Access

https://doi.org/10.1051/epjconf/201920104002

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Abstract

BM@N (Baryonic Matter at Nuclotron) is the first experiment at the accelerator complex of NICA-Nuclotron at JINR (Dubna). The aim of the experiment is to study collisions of relativistic ion beams of the kinetic energy from 1 to 4.5 AGeV with fixed targets. The last run started a new physics program of BM@N – Short Range Correlations (SRC) studies in light nuclei. The BM@N setup allows detecting of the residual nucleus for the first time. BM@N tracking detectors play a key role in the identification of the nucleus after hard scattering in inverse kinematics. We present the first results of the BM@N tracking detectors using the data collected in spring 2018.

Highlights

The fixed target experiment BM@N (Baryonic Matter at Nuclotron) is a part of the NICANuclotron-M which is currently under construction [1]
We present the first results of the BM@N tracking detectors using the data collected in spring 2018
The BM@N setup at the Nuclotron is a unique place for Short Range Correlations (SRC) studies as it allows performing of the residual nucleus for the first time

Summary

Introduction

The fixed target experiment BM@N (Baryonic Matter at Nuclotron) is a part of the NICANuclotron-M which is currently under construction [1]. The BM@N setup at the Nuclotron is a unique place for SRC studies as it allows performing of the residual nucleus for the first time. The Multiwire Proportional Chambers (MWPC) and Drift Chambers (DCH) detector will measure the turning angles of recoil fragments, which in combination with the Time-of-Flight systems (ToF700) allows to identify the residual nuclei (A-2). The tracking detectors of the experiment include: MWPC, Silicon Tracker, Gas Electron Multipliers, Time-of-Flight systems, Cathode Strip Chambers (CSC), DCH, neutron detector. The following configuration of MWPC chambers was used in the SRC at BM@N data taking period: two MWPCs (Pair0) were located on the beamline in front of the target to measure the beam trajectory and two MWPCs (Pair1) were installed downstream the target to measure recoil products. MWPC [4] play a key role in the estimation of the momentum and identification of the residual nucleus

Reconstructed Track Parameters using MWPCs

CSC Prototype Matching to DCH

Conclusions