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We analyze experimental data for the production of Lambda baryons in e^+e^- annihilation in terms of scale dependent, QCD evolved, Lambda fragmentation functions. Apart from the vast majority of the data for which the polarization of an…

High Energy Physics - Phenomenology · Physics 2009-10-30 D. de Florian , M. Stratmann , W. Vogelsang

We provide a first-principle construction of baryons as quantum Hall droplets in single-flavor holographic QCD. The baryons are described as charged D6-branes with a circular boundary on a flavor D8-brane in the Type IIA backgrounds dual to…

High Energy Physics - Theory · Physics 2025-10-10 Francesco Bigazzi , Aldo Lorenzo Cotrone , Andrea Olzi , Jean-Loup Raymond

It is well known that, 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…

High Energy Physics - Phenomenology · Physics 2007-11-12 J. Alvarez-Muniz , R. Conceicao , J. Dias de Deus , M. C. Espirito Santo , J. G. Milhano , M. Pimenta

We discuss the production of hadrons in polarized lepton nucleon interactions and in the current jet fragmentation region; using the QCD hard scattering formalism we compute the helicity density matrix of the hadron and show how its…

High Energy Physics - Phenomenology · Physics 2009-10-28 M. Anselmino , M. Boglione , J. Hansson , F. Murgia

The hyperfine mass splittings of baryons in large $N$ QCD are proved to be proportional to ${\bf J}^2$. Hyperfine mass splittings are first allowed at order $1/N$ in the $1/N$ expansion.

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Jenkins

The light-front holographic QCD approach is used to describe baryon spectroscopy and the systematics of nucleon transition form factors.

High Energy Physics - Phenomenology · Physics 2015-05-30 Guy F. de Teramond , Stanley J. Brodsky

This paper explores properties of baryons and finite density baryonic matter in an artificial world in which Nc, the number of colors, is large and the quarks of all species are degenerate and much larger than {\Lambda}_QCD. It has long…

Nuclear Theory · Physics 2015-03-18 Thomas D. Cohen , Nilay Kumar , Kamal K. Ndousse

We study the scenario of electroweak baryogenesis mediated by nonsuperconducting cosmic strings. This idea relies upon electroweak symmetry being restored in a region around the core of the topological defect so that, within this region,…

High Energy Physics - Phenomenology · Physics 2009-10-31 Jim Cline , Jose Espinosa , Guy D. Moore , Antonio Riotto

The net-baryon production at forward rapidities is investigated considering the Color Glass Condensate formalism. We assume that at large energies the coherence of the projectile quarks is lost and that the leading baryon production…

High Energy Physics - Phenomenology · Physics 2014-05-27 F. O. Duraes , A. V. Giannini , V. P. Goncalves , F. S. Navarra

The flux tube model offers a pictorial description of what happens during the deconfinement phase transition in QCD. The 3-point vertices of a flux tube network lead to formation of baryons upon hadronisation. Therefore, correlations in the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Apoorva Patel

Consideration of the analytic properties of pion-induced baryon self-energies leads to new functional forms for the extrapolation of light baryon masses. These functional forms reproduce the leading non-analytic behavior of chiral…

High Energy Physics - Lattice · Physics 2009-07-09 D. B. Leinweber , A. W. Thomas , K. Tsushima , S. V. Wright

Correlations of composites corresponding to baryons and mesons are composed within the derivative expansion. The expansion in energy scales permits a quantitative, algebraic description at various energy scales in QCD. The masses in QCD are…

General Physics · Physics 2007-05-23 Gordon Chalmers

In the framework of the model motivated by perturbative calculations in the fourth $O(\alpha^3_s\alpha)$-order, the estimates for the $\gamma p$ cross-section of the $D^*$-meson production in the ZEUS experiment are performed. We factorize…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. V. Berezhnoy , V. V. Kiselev , A. K. Likhoded

The conventional description of heavy-flavour hadron production in pp collisions is based on a factorisation approach, assuming universal fragmentation functions among collision systems. Recent results on heavy-flavour baryon measurements…

High Energy Physics - Experiment · Physics 2021-09-21 Mattia Faggin

We propose the study of the inclusive production of two $\Lambda$ hyperons or a single $\Lambda$-particle in association with a jet, featuring high transverse momenta and large separation in rapidity, as a probe channel of the resummation…

High Energy Physics - Phenomenology · Physics 2020-12-30 Francesco Giovanni Celiberto , Dmitry Yu. Ivanov , Alessandro Papa

Operator nucleon vertices are constructed in composite superconformal string model. Splitting of baryon Regge trajectories with the same quantum numbers but with opposite parity is provided by inclusion of simple additional components to…

High Energy Physics - Theory · Physics 2014-03-04 V. A. Kudryavtsev

In the framework of perturbative QCD in the fourth order over the $\alpha_s$ coupling constant for the production of two pairs of quarks and in the model of weak binding of the quarks into meson, the analysis of the hadronic production of…

High Energy Physics - Phenomenology · Physics 2014-11-17 A. V. Berezhnoy , V. V. Kiselev , A. K. Likhoded

We perform the first study of baryons in holographic QCD with $D4/D8/\bar{D8}$ multi-$D$ brane system in type IIA superstring theory. The baryon is described as a chiral soliton solution in the four-dimensional meson effective action…

High Energy Physics - Theory · Physics 2010-05-12 Kanabu Nawa , Hideo Suganuma , Toru Kojo

This paper summarizes recent experimental results on charmed baryons. Two main topics are covered: first, the spectroscopy of charmed baryon states; second, the production of charmed baryons in the decays of B mesons and from the e^+ e^-…

High Energy Physics - Experiment · Physics 2009-09-18 M. J. Charles

Assuming that vector and scalar diquarks exist in the Quark-Gluon Plasma near the critical temporature $T_c$, baryons can be produced through the processes of quarks and diquarks forming $({1/2})^+$ baryon states. Ratios of different…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hong Miao , Zhongbiao Ma , Chongshou Gao
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