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Field distributions generated by static quark-antiquark and QQQ sources are calculated analytically in the framework of Gaussian (bilocal) approximation of Field Correlator Method (FCM). Special attention is paid to the QQQ system and…

High Energy Physics - Phenomenology · Physics 2009-10-31 D. S. Kuzmenko , Yu. A. Simonov

We calculate the form factors for the baryon number violation processes of a heavy-flavor baryon decaying into a pseudoscalar meson and a lepton. In the framework of the Standard Model effective field theory, the leptoquark operators at the…

High Energy Physics - Phenomenology · Physics 2024-05-21 Lei-Yi Li , Cai-Dian Lü , Jin Wang , Yan-Bing Wei

The dynamic separation into phases of high and low baryon density in a heavy ion collision can enhance fluctuations of the net rapidity density of baryons compared to model expectations. We demonstrate that event-by-event proton and…

Nuclear Theory · Physics 2009-11-07 David Bower , Sean Gavin

Mean-field model quantum field theories of hadrons were traditionally developed to describe cold and dense nuclear matter and are by now very well constrained from the recent neutron star merger observations. We show that when augmented…

High Energy Physics - Phenomenology · Physics 2023-03-08 Aman Abhishek , Sayantan Sharma

The calculation of muon spectra from the decay of Lambda_c baryons was carried out on the basis of the description of recent data on charmed-baryon production in hadronic interactions. Data are described in the framework of Quark--Gluon…

High Energy Physics - Phenomenology · Physics 2010-03-04 O. I. Piskounova , N. V. Nikitin

The baryon distribution is studied by using a parton cascade model which is based on pQCD incorporating hard partonic scattering and dynamical hadronization scheme. In order to study baryon distribution,baryonic cluster formation is newly…

Nuclear Theory · Physics 2007-05-23 Yasushi Nara

The complex patterns of the hadronic spectrum have puzzled physicists since the early discovery of the "particle zoo" in the 1960s. Today, the properties of these myriad particles are understood to be the result of quantum chromodynamics…

High Energy Physics - Lattice · Physics 2011-11-23 Huey-Wen Lin

We perform a systematic study of the masses of charmed and bottom baryons in the framework of the QCD sum rule approach. Contributions of the operators up to dimension six are included in operator product expansion. The resulting heavy…

High Energy Physics - Phenomenology · Physics 2009-02-10 Jian-Rong Zhang , Ming-Qiu Huang

We review recent work on the phase structure of QCD at very high baryon density. We introduce the phenomenon of color superconductivity and discuss the use of weak coupling methods. We study the phase structure as a function of the number…

Nuclear Theory · Physics 2009-11-07 Thomas Schaefer

This talk outlines recent advances using QCD in the 1/N_c limit aimed at understanding baryon scattering processes and their embedded short-lived baryon resonances. In this presentation we emphasize developing qualitative physical insight…

High Energy Physics - Phenomenology · Physics 2017-08-23 Richard F. Lebed

Recent lattice QCD calculations of the baryon spectrum are outlined.

High Energy Physics - Lattice · Physics 2017-08-23 Robert G. Edwards

The process of secondary baryon production in pi(+-)p collisions at high energies in the central and forward fragmentation regions is considered in the framework of the Quark-Gluon String Model. The contribution of the string-junction…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. H. Arakelyan , C. Merino , Yu. M. Shabelski

In nuclear collisions, a sizable fraction of the available energy is carried away by baryons. As the baryon number is conserved, the net-baryon $B-\bar{B}$ retains information on the energy-momentum carried by the incoming nuclei. A simple…

High Energy Physics - Phenomenology · Physics 2009-09-30 J. Alvarez-Muñiz , R. Conceição , J. Dias de Deus , M. C. Espírito Santo , J. G. Milhano , M. Pimenta

The distribution of gluon fields in hadrons is of fundamental interest in QCD. Using lattice QCD we have observed the formation of gluon flux tubes within tri-quark (baryon) systems for a wide variety of spatial distributions of the color…

High Energy Physics - Lattice · Physics 2008-06-05 A. I. Signal , F. R. P. Bissey , D. B. Leinweber

Baryons with a single heavy quark are being studied experimentally at present. Baryons with two units of heavy flavor will be abundantly produced not only at future colliders, but also at existing facilities. In this paper we study the…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. A. Doncheski , J. Steegborn , M. L. Stong

We suggest baryon-baryon correlations as an experimentally accessible signature for a first-order phase transition between a baryon-rich phase, like quarkyonic, and a baryon-suppressed hadronic phase in the QCD phase diagram. We examine the…

Nuclear Theory · Physics 2015-03-13 Agnes Mocsy , Paul Sorensen

The mass spectrum of the lowest lying octet baryons is calculated to next-to-next-to-leading order in heavy baryon chiral perturbation theory and partially quenched heavy baryon chiral perturbation theory. We work in the isospin limit and…

High Energy Physics - Lattice · Physics 2009-11-10 Andre Walker-Loud

We review the spectrum and electromagnetic properties of baryons described as relativistic three-quark bound states within QCD. The composite nature of baryons results in a rich excitation spectrum, whilst leading to highly non-trivial…

High Energy Physics - Phenomenology · Physics 2016-10-12 Gernot Eichmann , Helios Sanchis-Alepuz , Richard Williams , Reinhard Alkofer , Christian S. Fischer

We consider general physical characteristics of doubly heavy baryons: the spectroscopy in the framework of potential approach and sum rules of QCD, mechanisms of production in various interactions on the basis of fragmentation model with…

High Energy Physics - Phenomenology · Physics 2010-12-17 V. V. Kiselev , A. K. Likhoded

The proton mass arises from spontaneous breaking of chiral symmetry and the formation of constituent quarks. Their dynamics cannot be tested by proton tomography but only by studying excited baryons. However, the number of excited baryons…

High Energy Physics - Phenomenology · Physics 2015-05-18 Eberhard Klempt