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A phenomenological analysis of the scalar glueball and scalar meson spectra is carried out by using the AdS/QCD framework in the bottom-up approach. The resulting spectra are in good agreement for glueballs with lattice QCD results and for…

高能物理 - 唯象学 · 物理学 2020-02-14 Matteo Rinaldi , Vicente Vento

We predict glueball/oddball resonances lying on the pomeron/odderon trajectories. A simple new form of the trajectories, with threshold and asymptotic behaviour required by analyticity and unitarity, is proposed. The parameters of these…

高能物理 - 唯象学 · 物理学 2020-03-24 István Szanyi , László Jenkovszky , Rainer Schicker , Volodymyr Svintozelskyi

Lattice computations with excited SU(3) representations suggest that the confining gluon-gluon interaction complies with the Casimir scaling. The constituent gluon models have also been assuming the Casimir scaling. Inspired in type-II…

高能物理 - 唯象学 · 物理学 2007-05-23 Elsa Abreu , Pedro Bicudo

We study the process $qq\rightarrow qqg$ at lowest order in QCD perturbation theory to understand gluon radiation in the fragmentation region of relativistic heavy-ion collisions. We arrive at a formula for gluon multiplicity that…

高能物理 - 唯象学 · 物理学 2020-09-30 Mawande Lushozi , Larry D. McLerran , Michał Praszalowicz , Gongming Yu

Two interconnected fields of interest are suggested for NICA. Firstly, existence of glueballs is predicted by the theory of strong interaction but -- even after decades of research -- glueball identification in the physical spectrum is…

高能物理 - 唯象学 · 物理学 2016-09-21 Denis Parganlija

We estimate the cross-section for glueball production in peripheral heavy-ion collisions through two-photon and double-Pomeron exchange, at energies that will be available at RHIC and LHC. Glueballs will be produced at large rates, opening…

高能物理 - 唯象学 · 物理学 2009-10-28 A. A. Natale

We study the gluon fusion into pairs of off-shell Z bosons and their subsequent decay into charged lepton pairs at hadron colliders. We do not restrict the intermediate state Z bosons to the narrow width approximation but allow for…

高能物理 - 唯象学 · 物理学 2009-10-28 C. Zecher , T. Matsuura , J. J. van der Bij

A quasiparticle description of pure glue QCD thermodynamics at T<T_c is proposed and compared to recent lattice data. Given that a gas of glueballs with constant mass cannot quantitatively reproduce the early stages of the deconfinement…

高能物理 - 唯象学 · 物理学 2014-11-20 F. Buisseret

We propose to add high precision track detectors 55m downstream on both (E&W) sides of CDF, to measure high Feynman-x protons and antiprotons in association with central states. A primary motivation is to search for the Higgs boson, and if…

Hadron spectroscopy has received revitalised interest due to the discovery of states with unexpected properties. Discussed are the recent findings at BABAR, CLEO, BELLE and BES. A detailed report is given on the many experiments reporting…

高能物理 - 唯象学 · 物理学 2009-09-29 Eberhard Klempt

Glueballs, an old and firm prediction of various QCD approaches (lattice QCD, bag models, AdS/QCD, effective models, etc.), have not yet been experimentally confirmed. While for glueballs below $2.6$ GeV some candidates exist, the situation…

高能物理 - 唯象学 · 物理学 2017-08-15 Francesco Giacosa

The non-perturbative nature of Quantum Chromodynamics (QCD) at low energies has prompted the expectation that the gauge-bosons of QCD -- gluons -- might give rise to compound objects denoted as glueballs. Experimental signals for glueballs…

高能物理 - 唯象学 · 物理学 2015-06-18 Denis Parganlija

In this work we use a mapping technique to derive in the context of a constituent gluon model an effective Hamiltonian that involves explicit gluon degrees of freedom. We study glueballs with two gluons using the Fock-Tani formalism. In the…

高能物理 - 唯象学 · 物理学 2009-11-10 M. L. L. da Silva , D. Hadjimichef , C. A. Z. Vasconcellos

We recently proposed a QCD-Pomeron described by the exchange of two non-perturbative gluons characterized by a dynamically generated gluon mass. It is here shown that data on elastic scattering, exclusive $\rho$ production in deep inelastic…

高能物理 - 唯象学 · 物理学 2011-07-19 M. B. Gay Ducati , F. Halzen , A. A. Natale

In a model with dynamical gluon mass, we investigate the bound states of two and three gluons via a Schr\"odinger equation. The short distance potential is approximated by one-gluon-exchange while the long distance part is assumed to be of…

高能物理 - 唯象学 · 物理学 2009-11-07 Wei-Shu Hou , Ching-Shan Luo , Gwo-Guang Wong

We study a pure gluon plasma in the context of quasiparticle models, where the plasma is considered as an ideal gas of massive bosons. In order to reproduce SU(3) gauge field lattice data within such a framework, we review briefly the…

高能物理 - 唯象学 · 物理学 2010-05-12 Fabian Brau , Fabien Buisseret

We present a search for a new heavy vector boson $Z'$ that decays to gluons. Decays to on-shell gluons are suppressed, leading to a dominant decay mode of $Z' \rightarrow g^*g$. We study the case where the off-shell gluon $g^*$ converts to…

高能物理 - 实验 · 物理学 2013-02-07 CDF Collaboration

We derive and systematically analyze scalar glueball correlation functions in both the hard-wall and dilaton soft-wall approximations to holographic QCD. The dynamical content of the holographic correlators is uncovered by examining their…

高能物理 - 唯象学 · 物理学 2008-11-26 Hilmar Forkel

We present here the first result on the three-loop gluon jet function in perturbative QCD. Using the three-loop coefficient functions [1,2] for deep-inelastic scattering via the exchange of a virtual photon that couples to quarks or a…

高能物理 - 唯象学 · 物理学 2018-11-28 Pulak Banerjee , Prasanna K. Dhani , V. Ravindran

We briefly review the approach for strong coupling calculation of glueball masses based on the duality between supergravity and Yang-Mills theory. Earlier work is extended to non-zero spin. Fluctuations in the gravitational metric lead to…

高能物理 - 唯象学 · 物理学 2007-05-23 Richard C. Brower , Samir D. Mathur , Chung-I Tan