Heavy Flavour Measurements with ALICE
Lead Research Organisation:
University of Liverpool
Department Name: Physics
Abstract
This Project focuses on the analysis of data taken with the ALICE detector in both p-p and p-Pb collisions at the Large Hadron Collider (CERN). The ALICE Liverpool group's main activity is the use of heavy-flavour probes to understand the properties of the Quark-Gluon Plasma (QGP). Heavy-flavour quarks are created in the initial stages of the collision and the temperature in the QGP is lower than that to create quark-antiquark pairs of these heavy flavours. This means that particles containing c and b quarks can act as effective probes to the evolution of the QGP. The probe of particular interest to this project is the Ac baryon, which is the lowest mass charmed baryon. The Ac baryon is not directly observed in the ALICE detectors but its decay products are. In the high-energy collisions at the LHC, there is a large amount of background contributed from random combinations of particles unrelated to the decay we want to measure. To rectify this, several advanced data analysis methods have been developed and used to extract the Ac signal from the background (with Monte Carlo and LHC Run 1 data). These methods include using standard topological cuts or a multivariate machine learning approach. This PhD project aims to utilise and further develop these current analytical methods for the analysis of data taken during Run 2 (2015-2018) at the LHC.
Organisations
People |
ORCID iD |
Marielle Chartier (Primary Supervisor) | |
Christopher Hills (Student) |
Publications
Acharya S
(2018)
Anisotropic flow in Xe-Xe collisions at s NN = 5.44 TeV
in Physics Letters B
Acharya S
(2019)
Measurement of charged jet cross section in p p collisions at s = 5.02 TeV
in Physical Review D
Acharya S
(2020)
Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies
in Physics Letters B
Acharya S
(2018)
Search for collectivity with azimuthal J/?-hadron correlations in high multiplicity p-Pb collisions at s NN = 5.02 and 8.16 TeV
in Physics Letters B
Acharya S
(2018)
Production of deuterons, tritons, He 3 nuclei, and their antinuclei in p p collisions at s = 0.9 , 2.76, and 7 TeV
in Physical Review C
Acharya S
(2017)
J/? Elliptic Flow in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV.
in Physical review letters
Acharya S
(2019)
Measurement of ?(1S) Elliptic Flow at Forward Rapidity in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV.
in Physical review letters
Acharya S
(2019)
Measurement of jet radial profiles in Pb-Pb collisions at s NN = 2.76 TeV
in Physics Letters B
Acharya S
(2019)
Study of the ?-? interaction with femtoscopy correlations in p p and p-Pb collisions at the LHC
in Physics Letters B
Acharya S
(2020)
Measurement of $$\Lambda $$(1520) production in pp collisions at $$\sqrt{s} = 7\ \hbox {TeV}$$ and p-Pb collisions at $$\sqrt{s_{\mathrm{NN}}} = 5.02\ \hbox {TeV}$$
in The European Physical Journal C
Acharya S
(2019)
First Observation of an Attractive Interaction between a Proton and a Cascade Baryon.
in Physical review letters
Acharya S
(2019)
Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at $$ \sqrt{\mathbf{s}} =\mathbf{5.02}$$ and 13 TeV
in The European Physical Journal C
Acharya S
(2020)
Measurement of electrons from heavy-flavour hadron decays as a function of multiplicity in p-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}} $$ = 5.02 TeV
in Journal of High Energy Physics
Acharya S
(2018)
Longitudinal asymmetry and its effect on pseudorapidity distributions in Pb-Pb collisions at s NN = 2.76 TeV
in Physics Letters B
Acharya S
(2019)
Charged jet cross section and fragmentation in proton-proton collisions at s = 7 TeV
in Physical Review D
Acharya S
(2018)
Measurement of the inclusive J/ $$\psi $$ ? polarization at forward rapidity in pp collisions at $$\mathbf {\sqrt{s} = 8}$$ s = 8 TeV
in The European Physical Journal C
Acharya S
(2019)
Charged-particle pseudorapidity density at mid-rapidity in p-Pb collisions at $$\pmb {\sqrt{s_{\scriptscriptstyle {\mathrm{NN}}}}}$$ s NN = 8.16 TeV
in The European Physical Journal C
Acharya S
(2018)
Constraints on jet quenching in p-Pb collisions at s NN = 5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions
in Physics Letters B
Acharya S
(2019)
Production of the ? ( 770 ) 0 meson in p p and Pb-Pb collisions at s N N = 2.76 TeV
in Physical Review C
Acharya S
(2019)
Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe-Xe collisions at s NN = 5.44 TeV
in Physics Letters B
Acharya S
(2019)
Direct photon elliptic flow in Pb-Pb collisions at s NN = 2.76 TeV
in Physics Letters B
Acharya S
(2017)
Measurement of deuteron spectra and elliptic flow in Pb-Pb collisions at $$\sqrt{s_{\mathrm {NN}}}$$ s NN = 2.76 TeV at the LHC
in The European Physical Journal C
Acharya S
(2019)
Azimuthal Anisotropy of Heavy-Flavor Decay Electrons in p-Pb Collisions at sqrt[s_{NN}]=5.02 TeV.
in Physical review letters
Acharya S
(2018)
$$\pi ^{0}$$ p 0 and $$\eta $$ ? meson production in proton-proton collisions at $$\sqrt{s}=8$$ s = 8 TeV
in The European Physical Journal C
Studentship Projects
Project Reference | Relationship | Related To | Start | End | Student Name |
---|---|---|---|---|---|
ST/N504142/1 | 01/10/2015 | 31/03/2021 | |||
1796881 | Studentship | ST/N504142/1 | 01/10/2016 | 31/05/2020 | Christopher Hills |
Description | ALICE guide visits |
Form Of Engagement Activity | Participation in an open day or visit at my research institution |
Part Of Official Scheme? | No |
Geographic Reach | International |
Primary Audience | Public/other audiences |
Results and Impact | Visits for public to ALICE detector at CERN , ongoing program done at CERN |
Year(s) Of Engagement Activity | 2018 |