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Double-parton scattering is investigated using events with a Z boson and jets. The Z boson is reconstructed using only the dimuon channel. The measurements are performed with proton-proton collision data recorded by the CMS experiment at…

高能物理 - 实验 · 物理学 2021-11-01 CMS Collaboration

The Pythia event generator is used in several contexts to study hadron and lepton interactions, notably $pp$ and $p\bar{p}$ collisions. In this article we extend the hadronic modelling to encompass the collision of a wide range of hadrons…

高能物理 - 唯象学 · 物理学 2022-01-26 Torbjörn Sjöstrand , Marius Utheim

Peripheral nucleon-nucleus collisions occur at the high energies mainly through the interaction with one constituent quark from the incident nucleon. The central collisions should involve all three constituent quarks and each of them can…

高能物理 - 唯象学 · 物理学 2019-03-28 G. H. Arakelyan , Yu. M. Shabelski , A. G. Shuvaev

Multiparton interactions are introduced in order to explain a wide range of phenomena in p-p collisions. We present the most recent CMS measurements sensitive to multiparton interactions and hard double parton scattering at 7 TeV. In…

高能物理 - 实验 · 物理学 2013-09-04 Paolo Gunnellini

I will discuss hadron-hadron collisions where the final state is kinematically of the kind associated with double-pomeron-exchange (DPE) and has large transverse momentum jets. I will show that in addition to the conventional factorized…

高能物理 - 唯象学 · 物理学 2007-05-23 Arjun Berera

Large angle gluon radiations induced by multiple parton scatterings contribute to dijet production in deeply inelastic scattering off a large nucleus at the Electron-Ion Collider. Within the generalized high-twist approach to multiple…

高能物理 - 唯象学 · 物理学 2022-03-22 Yuan-Yuan Zhang , Xin-Nian Wang

A DPMJET-III model (DPMJET-III-2011) with chain fusion adjusted to include energy.dependent parameters is used to calculate inclusive distributions in p-p collisions at LHC energies. Presented are charged hadrons rapidity distributions,…

高能物理 - 唯象学 · 物理学 2011-10-31 F. Bopp , J. Ranft

Multiple interactions of quarks and gluons in high-energy heavy-ion collisions may give rise to interesting phemomena of color charges propagating in high-density QCD matter. We study the dynamics of multi-parton systems produced in…

核理论 · 物理学 2009-10-31 Dinesh K. Srivastava , Klaus Geiger

Two suggested models of jet fragmentation in a quark-gluon plasma have been tested, combined and further developed. This has been done by generating hard processes in proton-proton collisions at $\sqrt{s}=2.76$ GeV in PYTHIA 8 with a…

高能物理 - 唯象学 · 物理学 2011-09-15 Viktor Linders

As an important signature of the quark-gluon plasma (QGP), a high-precision energy-loss model is essential to independently verify the QGP properties extracted from soft particles. In this work, we optimize the energy loss modeling in…

高能物理 - 唯象学 · 物理学 2025-03-06 Rouzbeh Modarresi-Yazdi , Shuzhe Shi , Charles Gale , Sangyong Jeon

Dihadron Fragmentation Functions (DFF) provide a vast amount of information on the intricate details of the parton hadronization process. Moreover, they provide a unique access to the "clean" extraction of nucleon transversity parton…

高能物理 - 唯象学 · 物理学 2013-12-04 Hrayr H. Matevosyan , Anthony W. Thomas , Wolfgang Bentz

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…

高能天体物理现象 · 物理学 2017-06-13 Theodoros Smponias , Odysseas Kosmas

We discuss how the main features of high-energy `soft' and `semihard' pp collisions may be described in terms of parton cascades and multi-Pomeron exchange. The interaction between Pomerons produces an effective infrared cutoff, k_{sat}, by…

高能物理 - 唯象学 · 物理学 2015-05-28 M. G. Ryskin , A. D. Martin , V. A. Khoze

The production of jets, and high momentum hadrons from jets, produced in deuteron ($d$)-$Au$ collisions at the relativistic heavy-ion collider (RHIC) and proton ($p$)-$Pb$ collisions at the large hadron collider (LHC) are studied as a…

核理论 · 物理学 2018-05-16 Michael Kordell , Abhijit Majumder

We demonstrate that a trigger on hard dijet production at small rapidities allows to establish a quantitative distinction between central and peripheral collisions in pbar-p and p-p collisions at Tevatron and LHC energies. Such a trigger…

高能物理 - 唯象学 · 物理学 2008-11-26 L. Frankfurt , M. Strikman , C. Weiss

We report on the development of a new model for the underlying event in hadron-hadron collisions. The model includes parton showers for all interactions, as well as non-trivial flavour, momentum, and colour correlations between interaction…

高能物理 - 唯象学 · 物理学 2009-12-15 P. Skands , T. Sjöstrand

We present predictions for the double parton scattering (DPS) four-jet production cross sections in $pA$ collisions at the LHC. Relying on the experimental capabilities to correlate centrality with impact parameter $B$ of the proton-nucleus…

高能物理 - 唯象学 · 物理学 2020-06-24 B. Blok , F. A. Ceccopieri

The construction of a Monte Carlo generator for high energy hadronic and nuclear collisions is discussed in detail. Interactions are treated in the framework of the Reggeon Field Theory, taking into consideration enhanced Pomeron diagrams…

高能物理 - 唯象学 · 物理学 2015-03-17 Sergey Ostapchenko

In peripheral relativistic heavy ion collisions at the Large Hadron Collider, jet+jet and photon+jet final states can be produced when a photon from the virtual photon field surrounding the nucleus interacts with a parton in the opposite…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Vogt

Proton-proton collision is a simple system to investigate nuclear matter and it is considered to be a guide for more sophisticated processes in the proton-nucleus and the nucleus-nucleus collisions. In this article, we present a…

高能物理 - 唯象学 · 物理学 2015-05-26 M. T. Ghoneim , M. T. Hussein , F. H. Sawy