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
(2019)
Measurement of the inclusive isolated photon production cross section in $$\text{ p }\text{ p }$$ collisions at $$\sqrt{s}=7$$ TeV
in The European Physical Journal C
Acharya S
(2019)
Coherent J/? photoproduction at forward rapidity in ultra-peripheral Pb-Pb collisions at s NN = 5.02 TeV
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)
Systematic studies of correlations between different order flow harmonics in Pb-Pb collisions at s NN = 2.76 TeV
in Physical Review C
Acharya S
(2019)
p - p , p - ? , and ? - ? correlations studied via femtoscopy in p p reactions at s = 7 TeV
in Physical Review C
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
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
(2018)
Neutral pion and ? meson production at midrapidity in Pb-Pb collisions at s NN = 2.76 TeV
in Physical Review C
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
(2018)
Neutral pion and $$\eta $$ ? meson production in p-Pb collisions at $$\sqrt{s_{\mathrm{NN}}}$$ s NN = 5.02 TeV
in The European Physical Journal C
Acharya S
(2019)
Multiplicity dependence of light-flavor hadron production in p p collisions at s = 7 TeV
in Physical Review C
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)
First measurement of ? c 0 production in pp collisions at s = 7 TeV
in Physics Letters B
Acharya S
(2019)
Measurement of dielectron production in central Pb-Pb collisions at s NN = 2.76 TeV
in Physical Review C
Acharya S
(2019)
? suppression at forward rapidity in Pb-Pb collisions at s NN = 5.02 TeV
in Physics Letters B
Acharya S
(2019)
Investigations of Anisotropic Flow Using Multiparticle Azimuthal Correlations in pp, p-Pb, Xe-Xe, and Pb-Pb Collisions at the LHC.
in Physical review letters
Acharya S
(2019)
Multiplicity dependence of (anti-)deuteron production in pp collisions at s = 7 TeV
in Physics Letters B
Acharya S
(2018)
Measurement of Z0-boson production at large rapidities in Pb-Pb collisions at s NN = 5.02 TeV
in Physics Letters B
Acharya S
(2017)
Measuring K S 0 K ± interactions using Pb-Pb collisions at s NN = 2.76 TeV
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
(2017)
Kaon femtoscopy in Pb-Pb collisions at s NN = 2.76 TeV
in Physical Review C
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)
One-dimensional charged kaon femtoscopy in p -Pb collisions at s NN = 5.02 TeV
in Physical Review C
Acharya S
(2020)
Evidence of rescattering effect in Pb-Pb collisions at the LHC through production of K ( 892 ) 0 ? and ?(1020) mesons
in Physics Letters B
Acharya S
(2019)
Measuring K S 0 K ± interactions using pp collisions at s = 7 TeV
in Physics Letters B
Acharya S
(2019)
Analysis of the apparent nuclear modification in peripheral Pb-Pb collisions at 5.02 TeV
in Physics Letters B
Acharya S
(2017)
Charged-particle multiplicity distributions over a wide pseudorapidity range in proton-proton collisions at $$\sqrt{s}=$$ s = 0.9, 7, and 8 TeV
in The European Physical Journal C
Acharya S
(2019)
Direct photon production at low transverse momentum in proton-proton collisions at s = 2.76 and 8 TeV
in Physical Review 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
(2020)
Measurement of strange baryon-antibaryon interactions with femtoscopic correlations
in Physics Letters B
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)
Dielectron and heavy-quark production in inelastic and high-multiplicity proton-proton collisions at s = 13 TeV
in Physics Letters B
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
(2018)
Azimuthally-differential pion femtoscopy relative to the third harmonic event plane in Pb-Pb collisions at s NN = 2.76 TeV
in Physics Letters B
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)
First Observation of an Attractive Interaction between a Proton and a Cascade Baryon.
in Physical review letters
Acharya S
(2018)
Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb-Pb collisions at s NN = 2.76 TeV
in Physics Letters B
Acharya S
(2017)
Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC
in Journal of High Energy Physics
Acharya S
(2018)
$$\phi $$ ? meson production at forward rapidity in Pb-Pb collisions at $$\sqrt{s_\mathrm {NN}}=2.76$$ s NN = 2.76 TeV
in The European Physical Journal C
Acharya S
(2019)
H ? 3 and H ? ? ? 3 lifetime measurement in Pb-Pb collisions at s NN = 5.02 TeV via two-body decay
in Physics Letters B
Acharya S
(2020)
Studies of J/? production at forward rapidity in Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}} $$ = 5.02 TeV
in Journal of High Energy Physics
Acharya S
(2019)
Relative particle yield fluctuations in $$\text{ Pb--Pb }$$ Pb--Pb collisions at $$\sqrt{s_\mathrm{ {NN}}} =2.76\hbox { TeV}$$ s NN = 2.76 TeV
in The European Physical Journal C
Acharya S
(2019)
Energy dependence of exclusive $$\mathrm {J}/\psi $$ photoproduction off protons in ultra-peripheral p-Pb collisions at $$\sqrt{s_{\mathrm {\scriptscriptstyle NN}}} = 5.02$$ TeV
in The European Physical Journal C
Acharya S
(2017)
J/? Elliptic Flow in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV.
in Physical review letters
Acharya S
(2018)
Anisotropic flow in Xe-Xe collisions at s NN = 5.44 TeV
in Physics Letters B
Acharya S
(2018)
Inclusive J/? production in Xe-Xe collisions at s NN = 5.44 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
(2019)
Suppression of ? ( 1520 ) resonance production in central Pb-Pb collisions at s NN = 2.76 TeV
in Physical Review 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 |