Unveiling the effects of multiple soft partonic interactions in collisions at using a new event classifier

A Ortiz, A Khuntia, OV Rueda, S Tripathy, G Bencédi… - Physical Review D, 2023 - APS
Event classifiers based either on the charged-particle multiplicity or the event shape have
been extensively used in proton-proton (pp) collisions by the ALICE Collaboration at the …

Disentangling the hard gluon bremsstrahlung effects from the relative transverse activity classifier in collisions

G Bencédi, A Ortiz, A Paz - Physical Review D, 2021 - APS
Recently, the so-called relative transverse activity classifier, RT, has been proposed as a
tool to disentangle the particle production originated from the soft and hard QCD processes …

Charged-particle production as a function of the relative transverse activity classifier in pp, p–Pb, and Pb–Pb collisions at the LHC

S Acharya, D Adamová, G Aglieri Rinella… - Journal of high energy …, 2024 - Springer
A bstract Measurements of charged-particle production in pp, p–Pb, and Pb–Pb collisions in
the toward, away, and transverse regions with the ALICE detector are discussed. These …

[HTML][HTML] Study of charged particle production at high pT using event topology in pp, p–Pb and Pb–Pb collisions at sNN= 5.02 TeV

S Acharya, D Adamová, A Adler, GA Rinella, M Agnello… - Physics letters B, 2023 - Elsevier
This letter reports measurements which characterize the underlying event associated with
hard scatterings at mid-pseudorapidity (| η|< 0.8) in pp, p–Pb and Pb–Pb collisions at centre …

Energy dependence of underlying-event observables from RHIC to LHC energies

A Ortiz - Physical Review D, 2021 - APS
A study of the charged-particle density (number density) in the transverse region of the
dihadron correlations exploiting the existing pp and pp¯ data from RHIC to LHC energies is …

Extraction of the multiplicity dependence of multiparton interactions from LHC pp data using machine learning techniques

A Ortiz, EA Zepeda - Journal of Physics G: Nuclear and Particle …, 2021 - iopscience.iop.org
Over the last years, machine learning (ML) methods have been successfully applied to a
wealth of problems in high-energy physics. For instance, in a previous work we have …

[PDF][PDF] LHC-ALICE 实验中伴随粒子产生的能量依赖性研究

AO Velásquez - 2024 - inspirehep.net
摘要在重离子对撞实验的中心碰撞(即碰撞参数较小的碰撞) 中, 形成了一种强相互作用的热密
物质, 即夸克胶子等离子体(QGP). 长期以来, 质子-质子碰撞被认为是在重离子实验中探测QGP …

Defining the underlying-event activity in the presence of heavy-flavour processes in proton-proton collisions at LHC energies

L Gyulai, S Sándor, R Vértesi - Particles, 2022 - mdpi.com
We present a systematic analysis of heavy-flavour production in the underlying event in
connection to a leading hard process in pp collisions at s= 13 TeV, using the PYTHIA 8 …

Jet modification in absence of QGP-medium: the role of multiparton interactions and color reconnection

P Das, A Modak, D Banerjee, R Biswas, S Das… - Chinese …, 2024 - iopscience.iop.org
Recent studies on high-multiplicity events in small collision systems (proton-proton and
proton-lead) have drawn considerable research interest toward the possibility of the …

Particle production as a function of underlying-event activity and search for jet-like modifications in pp, p-Pb, and Pb-Pb collisions at TeV with ALICE

A Ortiz - arXiv preprint arXiv:2207.10336, 2022 - arxiv.org
The similarity between small-and large-collision systems is explored using the charged-
particle multiplicity in the transverse region, $ N^{\rm T} _ {\rm ch} $, which is sensitive to the …