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We discuss several mechanisms of heavy quark production in (real) photon-nucleon and (real) photon - (real) photon collisions. In particular we focuse on application of the Saturation Model. We discuss how to generalize the formula from…

High Energy Physics - Phenomenology · Physics 2011-01-25 A. Szczurek

In the framework of the one-boson-exchange model, we explore whether the intermediate and short-range forces from $\sigma/\omega$-exchange can be strong enough to bind heavy molecular states. $\Lambda_cD(\bar{D})$, and…

High Energy Physics - Phenomenology · Physics 2017-12-27 Rui Chen , Xiang Liu , Atsushi Hosaka

We apply an equal-velocity quark combination model to study the production of light-flavor hadrons and single-charmed hadrons at midrapidity in $pp$ collisions at $\sqrt{s}=5.02$ TeV. We find experimental data for $p_{T}$ spectra of…

High Energy Physics - Phenomenology · Physics 2021-11-17 Hai-hong Li , Feng-lan Shao , Jun Song

I discuss mechanisms of heavy quark production in (real) photon-nucleon and (real) photon - (real) photon collisions. In particular, I focuse on application of the Saturation Model. In addition to the main dipole-nucleon or dipole-dipole…

High Energy Physics - Phenomenology · Physics 2011-01-25 A. Szczurek

The quark combination mechanism of QGP hadronization is applied to nucleus-nucleus collisions at top SPS energy. The yields, rapidity and transverse momentum distributions of identified hadrons in most central Pb+Pb collisions at…

High Energy Physics - Phenomenology · Physics 2009-08-20 Chang-en Shao , Jun Song , Feng-lan Shao , Qu-bing Xie

We propose a new method to produce self- and cross-Kerr photonic nonlinearities, using light-induced Stark shifts due to the interaction of a cavity mode with atoms. The proposed experimental set-up is considerably simpler than in previous…

Quantum Physics · Physics 2008-04-11 Fernando G. S. L. Brandao , Michael J. Hartmann , Martin B. Plenio

We extend the chromomagnetic model by further considering the effect of color interaction. The effective mass parameters between quark pairs ($m_{qq}$ or $m_{q\bar{q}}$) are introduced to account both the effective quark masses and the…

High Energy Physics - Phenomenology · Physics 2018-03-28 Xin-Zhen Weng , Xiao-Lin Chen , Wei-Zhen Deng

A simple theory is proposed for the dispersive molecular binding of unusually high magnitude due to an enhanced polarizability. Two alternative ways have so far been considered in the literature leading to the polarizability enhancement:…

Soft Condensed Matter · Physics 2007-05-23 Mladen Georgiev , Alexander Gochev , Jai Singh

The use of Heavy Quark Symmetry to study bottom and charmed baryons leads to important simplifications of the non-relativistic three body problem, which turns out to be easily solved by a simple variational ansatz. Our simple scheme…

Nuclear Theory · Physics 2009-09-29 C. Albertus , J. E. Amaro , E. Hernandez , J. Nieves

We perform the first study for the heavy-heavy-light quark (QQq) potential in SU(3) lattice QCD. The calculations are done with the standard gauge and $O(a)$-improved Wilson fermion action on the $16^4$ lattice at $\beta =6.0$ at the…

High Energy Physics - Lattice · Physics 2008-11-26 Arata Yamamoto , Hideo Suganuma , Hideaki Iida

The spin-averaged binding energy and the hyperfine mass splitting of heavy-light mesons are investigated within the constituent quark model as a function of the inverse heavy-quark mass. It is shown that the so-called heavy-quark kinetic…

High Energy Physics - Phenomenology · Physics 2009-10-30 Silvano Simula

We describe the transverse momentum (or mass) spectra of $\pi^\pm$, $K^\pm$, $p$, and $\bar{p}$ produced in central gold-gold (Au-Au), central lead-lead (Pb-Pb), and inelastic proton-proton ($pp$) collisions at different collision energies…

High Energy Physics - Phenomenology · Physics 2020-11-30 Xing-Wei He , Feng-Min Wu , Hua-Rong Wei , Bi-Hai Hong

We investigate the interactions of the charged exotic state $Z_c(3900)$ in a hadronic medium composed of light mesons. We study processes such as $Z_c \pi \to D\bar{D}$, $Z_c \pi \to D^*\bar{D}^*$, $Z_c \pi \to D\bar{D}^*$ and the inverse…

High Energy Physics - Phenomenology · Physics 2024-10-25 L. M. Abreu , R. O. Magalhães , F. S. Navarra , H. P. L. Vieira

We study the P-wave charmed baryons using the method of QCD sum rule in the framework of heavy quark effective theory (HQET). We consider systematically all possible baryon currents with a derivative for internal rho- and lambda-mode…

High Energy Physics - Phenomenology · Physics 2015-03-27 Hua-Xing Chen , Wei Chen , Qiang Mao , Atsushi Hosaka , Xiang Liu , Shi-Lin Zhu

An effective supersymmetric QCD light-front Hamiltonian for hadrons composed of light quarks, which includes a spin-spin interaction between the hadronic constituents, is constructed by embedding superconformal quantum mechanics into AdS…

High Energy Physics - Phenomenology · Physics 2016-07-05 Stanley J. Brodsky , Guy F. de Téramond , Hans Gunter Dosch , Cédric Lorcé

We study heavy-flavor hadron production in high-energy pp collisions, assuming the formation of a small, deconfined and expanding fireball where charm quarks can undergo rescattering and hadronization. We adopt the same in-medium…

High Energy Physics - Phenomenology · Physics 2024-01-04 Andrea Beraudo , Arturo De Pace , Daniel Pablos , Francesco Prino , Marco Monteno , Marzia Nardi

Model independent sum rules for heavy baryon masses are tested for baryons containing charmed or bottom quarks. The sum rules depend only on the assumption that baryon mass differences are determined by spin-dependent two-body energies of…

High Energy Physics - Phenomenology · Physics 2008-11-19 Jerrold Franklin

We investigate charmed hybrid baryons using the QCD sum rule method within the framework of heavy quark effective theory. We construct twenty-eight interpolating currents for charmed hybrid baryons, seven of which are employed in QCD sum…

High Energy Physics - Phenomenology · Physics 2025-10-31 Hui-Min Yang , Xuan Luo , Hua-Xing Chen , Wei Chen

Properties of single heavy flavor baryons in a non relativistic potential model with colour coulomb plus power law confinement potential have been studied. The ground state masses of single heavy baryons and the mass difference between the…

High Energy Physics - Phenomenology · Physics 2009-09-29 Ajay Majethiya , Bhavin Patel , P. C. Vinodkumar

Quantum Chromodynamics is thought to be the relativistic quantum field theory that describes the strong interaction of the Standard Model. This interaction produces mesons but it is also able to generate quark-quark (diquark) correlations…

Nuclear Theory · Physics 2016-04-20 Jorge Segovia