Spin Physics Detector at NICA

TL;DR

The Spin Physics Detector at NICA aims to measure spin observables in polarized collisions to explore the polarized gluon structure of nucleons, utilizing advanced detection and data acquisition systems at high luminosity.

Contribution

This paper introduces the design and capabilities of the SPD, a new detector setup at NICA for studying spin physics with innovative components and high-rate data acquisition.

Findings

Design of the SPD detector system

Expected measurement capabilities of spin observables

High data acquisition rate up to 4 MHz

Abstract

The Spin Physics Detector is one of two large setups at the NICA collider under construction at JINR (Dubna). The ultimate goal of the studies at SPD is the measurement of different spin observables in polarized proton-proton and deuteron-deuteron collisions sensitive to the polarized gluon structure of the nucleon at the luminosity up to 10$^{32}$ $cm^{-2}\cdot s^{-1}$ and $\sqrt{s}$ up to 27 GeV. SPD will consist of the superconducting magnetic system, silicon tracker, straw mini-drift tubes tracker, time-of-flight system, electromagnetic "shashlyk"- type calorimeter, muon (range) and local-polarimetry systems. The high performance free-streaming DAQ system will be able to operate at the collision rate up to 4 MHz.