Results 111 to 120 of about 907,201 (210)

Measurement of the Top Quark Mass in the Dilepton Final State using the Matrix Element Method [PDF]

open access: yes, 2008
The top quark, discovered in 1995 by the CDF and D0 experiments at the Fermilab Tevatron Collider, is the heaviest known fundamental particle. The precise knowledge of its mass yields important constraints on the mass of the yet-unobserved Higgs boson ...
Alexander Grohsjean   +1 more
core   +1 more source

Flavor Hierarchy of Jet Energy Correlators inside the Quark-Gluon Plasma

open access: yesPhysical Review Letters
Heavy flavor jets provide ideal tools to probe the mass effect on jet substructure in both vacuum and quark-gluon plasma. An energy-energy correlator (EEC) is an excellent jet substructure observable owning to its strong sensitivity to jet physics at different scales.
Wen-Jing Xing   +3 more
openaire   +3 more sources

Balance Function in High-Energy Collisions

open access: yesAdvances in High Energy Physics, 2015
Aspects and implications of the balance functions (BF) in high-energy physics are reviewed. The various calculations and measurements depending on different quantities, for example, system size, collisions centrality, and beam energy, are discussed ...
A. Tawfik, Asmaa G. Shalaby
doaj   +1 more source

Schwinger-Dyson equations in QED and QCD the calculation of fermion-antifermion condensates [PDF]

open access: yes, 2007
We present non-perturbative solutions for the fermion and boson propagators of QED in both three- and four-dimensions, and QCD. In doing so, we solve the coupled system of Schwinger-Dyson equations numerically in Euclidean space, investigating ...
Williams, Richard
core  

Probing transverse momentum broadening in heavy ion collisions

open access: yesPhysics Letters B, 2016
We study the dijet azimuthal de-correlation in relativistic heavy ion collisions as an important probe of the transverse momentum broadening effects of a high energy jet traversing the quark–gluon plasma.
A.H. Mueller   +3 more
doaj   +1 more source

Experimental measurement of medium response and hard-soft correlation [PDF]

open access: yesEPJ Web of Conferences
The observation of jet energy loss, or 'quenching', as a result of jet-medium interactions has long been held as a fundamental signature of the hot- and-dense state of matter known as the quark-gluon plasma (QGP).
McGinn Christopher
doaj   +1 more source

Infrared singularities in multi-leg scattering amplitudes [PDF]

open access: yes, 2014
I discuss the state-of-the-art knowledge of long-distance singularities in multi-leg gauge-theory scattering amplitudes and report on an on-going calculation of the three-loop soft anomalous dimension through the renormalization of correlators of semi ...
Einan Gardi, Gardi, Einan; id_orcid
core   +1 more source

Basic features of proton-proton interactions at ultra-relativistic energies and RFT-based quark-gluon string model

open access: yesEPJ Web of Conferences, 2017
Proton-proton collisions at energies from √s = 200 GeV up to √s = 14 TeV are studied within the microscopic quark-gluon string model. The model is based on Gribov’s Reggeon Field Theory accomplished by string phenomenology.
Zabrodin E., Bravina L., Bleibel J.
doaj   +1 more source

Double parton scattering and the proton transverse structure at the LHC

open access: yesJournal of High Energy Physics, 2019
We consider double parton distribution functions (dPDFs), essential quantities in double parton scattering (DPS) studies, which encode novel non perturbative insight on the partonic proton structure.
Matteo Rinaldi   +1 more
doaj   +1 more source

Search for top quark decays t → qH with H → γγ using the ATLAS detector [PDF]

open access: yes, 2014
A search is performed for flavour-changing neutral currents in the decay of a top quark to an up-type (c, u) quark and a Higgs boson, where the Higgs boson decays to two photons.
G. Khoriauli   +999 more
core   +4 more sources

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