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We investigate whether and how different fragmentation properties of quarks and gluons affect identified particle spectra. We present a systematic study of $\pi$, $K$ and $p$ production in minimum bias (inelastic, non-diffractive), two- and…

High Energy Physics - Experiment · Physics 2011-02-18 Sona Pochybova

Short-range correlations between charged particles are studied via two-particle angular correlations in pp collisions at ${\sqrt{{\textit s}}}=13$~TeV. The correlation functions are measured as a function of the relative azimuthal angle…

Nuclear Experiment · Physics 2025-06-03 ALICE Collaboration

Recent results in high-multiplicity pp collisions show features similar to those that are associated with the formation of a quark$-$gluon plasma in heavy-ion collisions. Investigating the modification of the intra-jet properties as a…

Nuclear Experiment · Physics 2023-08-01 Debjani Banerjee

The string melting version of a multi-phase transport model is often applied to high-energy heavy-ion collisions since the dense matter thus formed is expected to be in parton degrees of freedom. In this work we improve its quark…

Nuclear Theory · Physics 2017-07-26 Yuncun He , Zi-Wei Lin

Jet fragmentation functions provide insight into jet structure and are expected to be modified by the nuclear medium in A+A collisions with respect to p+p reference measurements. If jet reconstruction is unbiased then a softening of the…

Nuclear Experiment · Physics 2019-08-13 Elena Bruna

Recently, the so-called relative transverse activity classifier, $R_{\rm T}$, has been proposed as a tool to disentangle the particle production originated from the soft and hard QCD processes in proton-proton (pp) collisions. $R_{\rm T}$…

High Energy Physics - Phenomenology · Physics 2021-07-28 Gyula Bencedi , Antonio Ortiz , Antonio Paz

Energetic jets that traverse the quark-gluon plasma created in heavy-ion collisions serve as excellent probes to study this new state of deconfined QCD matter. Presently, however, our ability to achieve a crisp theoretical interpretation of…

High Energy Physics - Phenomenology · Physics 2023-05-17 Daniel Pablos , Alba Soto-Ontoso

Heavy-flavored hadrons are unique probes to study the properties of hot and dense QCD medium produced in ultra-relativistic heavy-ion collisions at RHIC and the LHC. Transverse spherocity is one of the event-topology variables used to…

Nuclear Experiment · Physics 2021-08-17 Suman Deb , Raghunath Sahoo , Dhananjaya Thakur , Sushanta Tripathy , Arvind Khuntia

Hard processes in collider experiments typically produce QCD jets, which have long served as precision tests of QCD in the vacuum. More recently, heavy-ion programs at RHIC and the LHC have offered a novel perspective on jets, establishing…

High Energy Physics - Phenomenology · Physics 2025-10-01 Yacine Mehtar-Tani

The process of baryon number transfer due to string junction propagation in rapidity space is considered. It leads to a significant effect in the net baryon production in pA collisions at mid-rapidities and an even more significant effect…

High Energy Physics - Phenomenology · Physics 2012-07-30 F. W. Bopp , Yu. M. Shabelski

The last few years have seen community-wide excitement in the study of jet substructure derived from the inner workings of clustering algorithms. Such efforts have resulted in the design of new observables which are related to partonic…

High Energy Physics - Phenomenology · Physics 2022-09-13 Raghav Kunnawalkam Elayavalli

If we find extra dimensions in the second run of the LHC in the $pp$ collisions at $\sqrt{s}$ = 14 TeV, then the string mass scale $M_s$ can be $\sim$ TeV and we should produce QCD jets in $2 \rightarrow 2$ partonic collisions via string…

High Energy Physics - Phenomenology · Physics 2015-08-27 Gouranga C. Nayak

Quarkonia production in hadronic collisions is far from being understood as none of the existing models can correctly describe the wealth of available data. In particular, LHCb and CMS experiments have reported that PYTHIA 8 cannot…

High Energy Physics - Phenomenology · Physics 2025-06-19 Lizardo Valencia Palomo

In high energy nuclear collisions, heavy flavor tagged jets are useful hard probes to study the properties of the quark-gluon plasma (QGP). In this talk, we present the first theoretical prediction of the $D^0$ meson radial distributions in…

Nuclear Theory · Physics 2022-08-23 Sa Wang , Wei Dai , Ben-Wei Zhang , Enke Wang

We present a comprehensive study of jet substructure modifications in high-energy heavy-ion collisions using both inclusive jets and $\gamma$-tagged jets, based on a multi-stage jet evolution model within the Monte Carlo framework JETSCAPE.…

Charged-particle fragmentation functions for jets azimuthally balanced by a high-transverse-momentum, prompt, isolated photon are measured in $25$ pb$^{-1}$ of $pp$ and $0.49$ nb$^{-1}$ of Pb+Pb collision data at $5.02$ TeV per nucleon pair…

Nuclear Experiment · Physics 2019-08-12 ATLAS Collaboration

Based on a pQCD inspired dynamical model of jet-medium interactions, Jewel, we have studied possible modifications to inclusive jet yields and a set of jet shape observables, namely, the fragmentation functions and radial momentum…

High Energy Physics - Phenomenology · Physics 2019-07-25 Rathijit Biswas , Subikash Choudhury , Sidharth Kumar Prasad , Supriya Das

We consider the phenomenological consequences of the assumption that the baryons are the systems of three quarks and string junction. The process of baryon number transfer due to string junction propagation in rapidity space is considered…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yu. M. Shabelski

Fully reconstructed jets and direct photon-tagged jet fragments significantly reduce energy-loss bias, the bias toward mostly measuring particles from partons which suffer little energy loss. In d+Au collisions, one accesses the physics at…

Nuclear Experiment · Physics 2019-08-21 N. Grau

The effects of string fusion on the correlations in strange particles production in proton-proton collisions at high energy are studied in the framework of a Monte Carlo string-parton model. The model is based on the strings formation in…

High Energy Physics - Phenomenology · Physics 2016-01-26 Vladimir Kovalenko , Vladimir Vechernin