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We present lattice QCD results for the screening masses of light mesons and charmonia. The lattice computations were performed with 2+1 flavors of improved staggered quarks using quark masses which correspond to realistic pion and kaon…

High Energy Physics - Lattice · Physics 2009-11-16 Swagato Mukherjee

Hadron spectra and other properties of quark systems are studied in the framework of a non-relativistic spin-independent phenomenological model. The chosen confining potential is harmonic, which allowed us to obtain analytical solutions for…

Physics Education · Physics 2018-10-24 Eduardo Cuervo-Reyes , Marcos Rigol , Jesus Rubayo-Soneira

We investigate thermodynamics of hadrons using the Gaussian functional method (GFM) at finite temperature. Since the interaction among mesons is very large, we take into account fluctuations of mesons around their mean field values using…

High Energy Physics - Phenomenology · Physics 2017-08-23 Shotaro Imai , Hua-Xing Chen , Hiroshi Toki , Li-Sheng Geng

We calculate the light hadron spectrum in full QCD using two plus one flavor Asqtad sea quarks and domain wall valence quarks. Meson and baryon masses are calculated on a lattice of spatial size $L \approx 2.5$\texttt{fm}, and a lattice…

Thermal radiation of photons and dileptons from hadronic matter plays an essential role in understanding electromagnetic emission spectra in high-energy heavy-ion collisions. In particular, baryons and anti-baryons have been found to be…

High Energy Physics - Phenomenology · Physics 2020-12-30 Nathan P. M. Holt , Ralf Rapp

We review recent developments in the theoretical description of inclusive single-hadron production at next-to-leading order in the parton model of quantum chromodynamics. Fragmentation functions are extracted from fits to data of inclusive…

High Energy Physics - Phenomenology · Physics 2007-05-23 Bernd A. Kniehl

The string melting version of a multi-phase transport model is often applied to high-energy heavy-ion collisions since the dense matter thus formed is expected to be in parton degrees of freedom. In this work we improve its quark…

Nuclear Theory · Physics 2017-07-26 Yuncun He , Zi-Wei Lin

We present the analytical expressions for the next-to-leading order corrections to the partial decay width $t(\uparrow) \rightarrow bW^+$, followed by $b\rightarrow H_bX$, for nonzero b-quark mass ($m_b\neq 0$) in the fixed-flavor-number…

High Energy Physics - Phenomenology · Physics 2016-10-19 S. Mohammad Moosavi Nejad , Mahboobe Balali

Recently we have shown that it is possible to study the parton to hadron fragmentation function by using the lattice QCD method at the zero temperature. In this paper we extend this to the finite temperature QCD and study the parton to…

General Physics · Physics 2019-04-12 Gouranga C Nayak

We consider the reaction dynamics of bosons with negative parity and spin $0$ or $1$ and fermions with positive parity and spin $\frac{1}{2}$ or $\frac{3}{2}$. Such systems are of central importance for the computation of the baryon…

High Energy Physics - Phenomenology · Physics 2015-06-19 Yonggoo Heo , Matthias F. M. Lutz

Recently we derived a soft-wall AdS-Schwarzschild approach at small temperatures for the description of hadrons with integer spin and adjustable number of constituents (mesons, tetraquarks, dibaryons, etc.). In the present paper we extend…

High Energy Physics - Phenomenology · Physics 2019-06-28 Thomas Gutsche , Valery E. Lyubovitskij , Ivan Schmidt , Andrey Yu. Trifonov

The properties of bound states are fundamental to hadronic spectroscopy and play a central role in the transition from hadronic matter to a quark-gluon plasma (QGP). In a strongly coupled QGP (sQGP), the interplay of temperature, binding…

Nuclear Theory · Physics 2025-09-23 Zhanduo Tang , Biaogang Wu , Andrew Hanlon , Swagato Mukherjee , Peter Petreczky , Ralf Rapp

The modifications of hadronic masses and decay widths at finite temperature and baryon density are investigated using a phenomenological model of hadronic interactions in the Relativistic Hartree Approximation. We consider an exhaustive set…

Nuclear Theory · Physics 2016-01-07 Pradip Roy , Sourav Sarkar , Jan-e Alam , Bikash Sinha

Meson and baryon masses in the light (u,d and s) sector are calculated using tadpole-improved gauge field and fermion actions. These are corrected to order $O(a^2)$ on the classical level using next-nearest-neighbour terms. The results,…

High Energy Physics - Lattice · Physics 2009-10-28 H. R. Fiebig , R. M. Woloshyn

We combine Tsallis distributed massless partons to an effective thermal prehadron spectrum by folding. A limiting temperature and a mass spectrum combined of three exponentials emerge from this procedure. Meson and baryon resonance spectra…

High Energy Physics - Phenomenology · Physics 2016-09-06 T. S. Biro , A. Peshier

We present results of a high statistics study of the quenched spectrum using Wilson fermions at $\beta=6.0$ on $32^3 \times 64$ lattices. We calculate the masses of mesons and baryons composed of both degenerate and non-degenerate quarks.…

High Energy Physics - Lattice · Physics 2008-02-03 Tanmoy Bhattacharya , Rajan Gupta , Gregory Kilcup , Stephen Sharpe

The covariant propagator of a fermion with intrinsic magnetic moment interacting with a uniform external magnetic field is presented for finite temperature and baryonic density. The case of a scalar boson is also considered. The final…

Nuclear Theory · Physics 2017-05-04 R. Aguirre

Recent investigations show that the thermal spectral function of heavy $ {b \bar b } $ and $ {c \bar c} $ vector mesons can be described using holography. These studies consider a bottom up model that captures the heavy flavour spectroscopy…

High Energy Physics - Phenomenology · Physics 2019-01-30 Nelson R. F. Braga , Luiz F. Ferreira

Heavier resonances are continually being added to the hadronic spectrum from the Particle Data Group that follow an exponentially increasing mass spectrum. However, it has been suggested that even further states predicted from Quark Models…

Nuclear Theory · Physics 2017-05-24 Paolo Parotto

We study the hadron properties at finite temperature from measurement of the screening masses, using two-flavor full QCD of the hybrid Monte Carlo (HMC) algorithm with the renormalization group improved Iwasaki gauge action and the clover…

High Energy Physics - Lattice · Physics 2017-11-28 Teiji Kunihiro , Shin Muroya , Atsushi Nakamura , Chiho Nonaka , Motoo Sekiguchi , Hiroaki Wada , Masayuki Wakayama