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200 papers

We propose a novel method for sorting events of multiparticle production according to the azimuthal anisotropy of their momentum distribution. Although the method is quite general, we advocate its use in analysis of ultra-relativistic…

Nuclear Theory · Physics 2016-05-25 Renata Kopecna , Boris Tomasik

Diffusion wake is an unambiguous part of the jet-induced medium response in high-energy heavy-ion collisions that leads to a depletion of soft hadrons in the opposite direction of the jet propagation. New experimental data on $Z$-hadron…

High Energy Physics - Phenomenology · Physics 2022-03-22 Zhong Yang , Wei Chen , Yayun He , Weiyao Ke , Longgang Pang , Xin-Nian Wang

The hadronic jets in a micro-quasar stellar system are modelled with the relativistic hydrocode PLUTO. We focus on neutrino emission from such jets produced by fast proton (non-thermal) collisions on thermal ones within the hadronic jet. We…

High Energy Astrophysical Phenomena · Physics 2017-06-13 Theodoros Smponias , Odysseas Kosmas

Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a $Z$ boson. The charged-hadron distributions are studied longitudinally and…

High Energy Physics - Experiment · Physics 2024-04-24 LHCb Collaboration

We simulate a densely jammed, athermal assembly of repulsive soft particles immersed in a solvent. Starting from an initial condition corresponding to a quench from a high temperature, we find non-trivial slow dynamics driven by a gradual…

Soft Condensed Matter · Physics 2019-09-11 Rahul N. Chacko , Peter Sollich , Suzanne M. Fielding

Vacuum and medium modified fragmentation functions are used to study the properties of hadrons produced in hard interactions, in $p$-$p$ and $A$-$A$ collisions, respectively. We study the modification of reconstructed jets and high…

Nuclear Theory · Physics 2019-01-14 Chathuranga Sirimanna , Shanshan Cao , Abhijit Majumder

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.…

We define a new set of observables to probe the structure of the underlying event in hadron collisions. We use the conventional definition of the `transverse region' in jet events and, for a fixed window in jet $p_\perp$, propose to measure…

High Energy Physics - Phenomenology · Physics 2016-06-01 Tim Martin , Peter Skands , Sinead Farrington

Superposition of jets of different flavors as well as superposition of jets of different topologies describe well observed structures (shoulder, H_q oscillations) in e+e- annihilation. The analysis of similar effects seen in experimental…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Giovannini , R. Ugoccioni

We study the transverse momentum spectrum of hadrons in jets. By measuring the transverse momentum with respect to a judiciously chosen axis, we find that this observable is insensitive to (the recoil of) soft radiation. Furthermore, for…

High Energy Physics - Phenomenology · Physics 2019-02-11 Duff Neill , Ignazio Scimemi , Wouter J. Waalewijn

Study of polarization of heavy particles is an important branch of research in today's collider studies. The massive $W$ boson has two types of polarization states, which usually are studied via the angular distribution of its decay…

High Energy Physics - Phenomenology · Physics 2021-11-01 Atri Dey , Tousik Samui

Measurements of hadron production in pp collisions by the ATLAS and CMS experiments are presented, including charged particle transverse momentum, pseudorapidity and event-by-event multiplicity distributions at sqrt(s) = 0.9, 2.36 and 7…

High Energy Physics - Experiment · Physics 2015-06-03 Romain Rougny

The energy loss of a hard parton is regarded as a useful tool to probe properties of a soft medium. However, the information obtained by a measurement of the nuclear suppression R_AA is not very sensitive to medium properties. Thus, more…

High Energy Physics - Phenomenology · Physics 2007-05-23 Thorsten Renk

Particle production in deep inelastic scattering on nuclei is reduced due to absorption of the produced particles in the nucleus. The photon ejects a quark from a bound nucleon which propagates through the nucleus forming a prehadron before…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. J. Pirner , D. Grunewald

Neutron and x-ray scattering experiments traditionally rely upon histogrammed data sets, which are analysed using least-squares curve fitting of multiple probability distribution components to quantify separately the various scientific…

Instrumentation and Detectors · Physics 2026-04-30 Phillip M. Bentley , Thomas H. Rod

Dynamics of jammed packings of soft athermal disks under finite-rate shear are studied by means of molecular dynamics simulations. Particularly, we investigate the spatial structures of stress drop events, which are expected to provide…

Soft Condensed Matter · Physics 2021-04-20 Shoichi Takahata , Norihiro Oyama , Kuniyasu Saitoh

We propose a new phenomenological approach to establish QCD factorization of jet cross sections in the heavy-ion environment. Starting from a factorization formalism in proton-proton collisions, we introduce medium modified jet functions to…

High Energy Physics - Phenomenology · Physics 2019-07-03 Jian-Wei Qiu , Felix Ringer , Nobuo Sato , Pia Zurita

We study the low transverse momentum (p_T) distribution of the Z-boson at hadron colliders for p_T ~ Lambda_{QCD} using a factorization and resummation formula derived in the Soft Collinear Effective Theory (SCET). In the region p_T ~…

High Energy Physics - Phenomenology · Physics 2011-08-09 Sonny Mantry , Frank Petriello

We investigate the exclusive jet mass distribution in e+e- events, defined with a veto on the out-of-jet radiation, at two-loop order. In particular, we calculate the two-loop soft function, which is required to describe this distribution…

High Energy Physics - Phenomenology · Physics 2013-05-30 Randall Kelley , Matthew D. Schwartz , Robert M. Schabinger , Hua Xing Zhu

The impact of droplets on liquid pools is ubiquitous in nature and many industrial applications. Most previous studies of droplet impact focus on Newtonian fluids, while less attention has been paid to the impact dynamics of non-Newtonian…

Fluid Dynamics · Physics 2023-01-18 Xiaoyun Peng , Tianyou Wang , Kai Sun , Zhizhao Che