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Showing 1 to 20 of 55 for “"Baryons"”.
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Photoproduction of charmed baryons
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T17:20:35Z No. of bitstreams: 1 1980_russell.pdf: 3561298 bytes, checksum: 8ff071f16f371aac8d1dcdd76e01dca0 (MD5)
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Electromagnetic properties of baryons from lattice QCD
… properties of the octet and decuplet baryons are calculated in quenched QCD on a 20 ³ x40 lattice with a lattice spacing of 0.128 fm using the fat - link irrelevant clover ( FLIC ) fermion action. FLIC fermions enable simulations to be performed efficiently at quark masses as low as …
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Search for doubly-charmed baryons in CDF data
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-08-01
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The anomalous magnetic moment of baryons in cavity QCD
Using a generalised form of the Gell-Mann and Low theorem, all the diagrams in cavity QCD to order as that contribute to the magnetic moment are calculated. The calculations are performed for massive quarks so a mass renormalisation scheme has been developed to cope with the new divergences this …
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Effective Field Theory for Doubly Heavy Baryons and Lattice QCD
… study effective field theories for doubly heavy baryons and lattice QCD. We construct a chiral Lagrangian for doubly heavy baryons and heavy mesons that is invariant under heavy quark-diquark symmetry at leading order and includes the leading O(1/m_Q ) symmetry violating operators. The theory is …
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Group-theoretical applications in a tri-local model for baryons
231 leaves, appendix
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The Role of Baryons and Neutrinos in the Evolution of Large-Scale Structure
Galaxy groups and clusters (GGCs) hold a privileged position within the cosmological hierarchy. As the most recent structures to have formed, their abundances, spatial distribution and individual properties bear the indelible imprint of the background cosmology, initial conditions and their …
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PROOF-OF-PRINCIPLE TEST FOR AN EXPERIMENT FOR SHORT-LIVED PARTICLE DIPOLE MOMENTS AT LHC
… offer insight into the internal structure of baryons and the dynamics of the strong interaction. Although the magnetic moments of light baryons are precisely known, those of charm baryons remain unmeasured due to their extremely short lifetimes. A direct measurement at the 10% level would …
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Isospin Violating Hadronic Mass Splittings using Lattice QCD+QED
… spectrum, including pseudoscalar mesons, octet baryons and decuplet baryons. We replicate this same analysis for ground state charmed hadrons. In these studies the QED component is necessary for two reasons. Firstly, it is necessary when attempting to obtain mass results with sub-percent …
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Studies of Light Scalar Particles and Dressed Gauge Propagators in QCD
… believed to describe the properties of mesons, baryons and their hadronisation after hard interactions at particle accelerators such as the LHC. However, the theoretical framework linking the fundamental Lagrangian of QCD to the mesons and baryons observed in experiment is still in development. …
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A diquark interpretation of the structure and energies of hadrons
… theoretical indications including: treating baryons as a two body system with a diquark and quark connected by a flux tube, thereby indicating that they lie on Regge trajectories; allowing for independent combinations of diquark and quark to enumerate the observed trajectories; and that …
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Dense matter in effective meson theories
… mesons are the relevant degrees of freedom. Baryons emerge as topological solitons in such theories. Nucleon properties are well reproduced within these models--the agreement with experiment improving with the complexity of the theory.
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Calculations on production reactions using the absorptive peripheral model
… of the omega -> e+e- decay mode. The exchange of baryons is treated in an attempt to understand the small backward peaks in differential cross sections for some reactions. Absorption model predictions are found to be unreliable for these reactions. The details of the partial wave summation …
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A study of polarized Λ production in deep inelastic postron scattering
… with the view that the spin composition of baryons could be found using simple spin counting rules. Many advances, both theoretical and experimental, help explain other sources of nuclear spin, such as net orbital angular momentum or gluon spin. While some explanations may have been found …
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Rendering dark energy void
… the universe, cold dark matter (CD'I) 23SiC, and baryons, the matter we are made, only 4%.
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Search for semileptonic decays of photoproduced charmed mesons
… search for semi1eptonic decays of charmed baryons.
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TRANSVERSE MOMENTUM EVOLUTION OF HADRON-V0 CORRELATIONS IN PP COLLISIONS AT 7 TEV
… charged trigger particles and associated strange baryons and mesons. Enhancements of the azimuthal correlations are seen at dphi= 0 and dphi= pi, resulting from back-to-back jet fragmentation in the parton center-of-mass system. Two model fit functions were introduced to characterize the …
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