Abstract
The strong interactions programme of the NA61/SHINE experiment at CERN SPS has been extended through the use of new silicon Vertex Detector which provides precise measurements of exotic particles with short lifetime. The detector was designed to meet the challenges of primary and secondary vertexes reconstruction at high spatial resolution. An initial version of the Vertex Detector called SAVD (Small Acceptance Vertex Detector) was installed last end of 2016, and data was from Pb+Pb collisions was collected in 2016, for Xe+La in 2017, as well as further Pb+Pb collisions this year. First indication of a D0 peak at SPS energies has been observed. The physics motivation behind the open charm measurements will be discussed, as well as the analysis of collected data on open charm production and the future plans of open charm measurements in NA61/SHINE experiment related to the upgraded version of the vertex detector.
Highlights
The SPS Heavy Ion and Neutrino Experiment (NA61/SHINE) [1] is a fixed-target experiment located at the CERN Super Proton Synchrotron (SPS)
The NA61/SHINE detector is optimised to study hadron production in hadron-proton, hadron-nucleus and nucleus-nucleus collisions. It consists of a large acceptance hadron spectrometer with excellent capabilities in charged particle momentum measurements and identification by a set of eight Time Projection Chambers (TPC) as well as Time-of-Flight (ToF) detectors
The strong interaction research program of NA61/SHINE is dedicated to study the properties of the onset of deconfinement and search for the critical point of strongly interacting matter
Summary
The SPS Heavy Ion and Neutrino Experiment (NA61/SHINE) [1] is a fixed-target experiment located at the CERN Super Proton Synchrotron (SPS). The strong interaction research program of NA61/SHINE is dedicated to study the properties of the onset of deconfinement and search for the critical point of strongly interacting matter These goals are being pursued by investigating p+p, p+A and A+A collisions at different beam momenta from 13A to 150A GeV/c. In 2016 NA61/SHINE was upgraded with the Small Acceptance Vertex Detector (SAVD) based on MIMOSA-26AHR sensors developed in IPHC Strasbourg. Construction of this device was mostly motivated by the importance and the possibility of the first direct measurements of open charm meson production in heavy ion collisions at SPS energies.
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