[PDF] Top 20 Decay in Covariant Quark Model
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Decay in Covariant Quark Model
... confined quark model (CCQM) with built-in infrared confinement developed by ...the decay properties of B (s) mesons [25–28], baryons [29–31] and ... See full document
6
Poincaré-covariant quark model of electroweak light mesons decays
... hadron decay descriptions, as a bound quark system, is an important task of high energy physics and theoretical ...bound quark interaction has not been completely ... See full document
6
Top quark measurements in the CMS experiment
... top quark decays based on invariant masses and b-tag information; then, a second BDT uses the ranking from the first BDT plus global event kinematic variables to identify signal ... See full document
8
Understanding d*(2380) in a chiral quark model
... When explaining d ∗ (2380) as a ∆∆ bound state, it is found that the calculated decay width is too large compared with data, even the mass can be reproduced properly [10]. Instead, there are two other explanations ... See full document
6
HERWIG 6: an event generator for Hadron emission reactions with interfering gluons (including supersymmetric processes)
... heavy quark decays, and a wide range of new processes, including many predicted by the Minimal Supersymmetric Standard Model, with the option of R-parity ... See full document
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Effective Hamiltonian of Electroweak Penguin for Hadronic b Quark Decays
... Standard Model, flavor-changing neutral currents are forbidden, for example, there is no direct coupling between the b quark and the s or d ...a quark emits and reabsorbs a W thus changing flavors ... See full document
19
Quark model description of baryon properties
... Like the electroweak amplitudes discussed above, strong two-body decays of baryon resonances can in lowest or- der in the context of the Mandelstam formalism be calcu- lated parameter free. Because of the neglect of ... See full document
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Self-consistent description of deformed nuclei at the proton drip line
... for decay of deformed emitters, using interactions derived from covariant density func- tional theory, and determined exactly the Nilsson resonances and the decay ... See full document
8
The pseudoscalar decay constant
... Poincar´e covariant frame- work, provide a setting for a non-perturbative chiral symmetry preserving truncation that leads to an efficient one–parameter rainbow–ladder model ...essentially model– ... See full document
6
Spectroscopy of higher bottomonia
... evaluated in the unquenched quark model formalism [1, 4– 7]. See Fig. 1. In Ref. [7], we also gave results obtained by re-fitting the relativized QM mass formula [21] to the most recent experimental data ... See full document
5
η production off the proton in a chiral quark approach
... The large amount of the data have attracted much theoretical interest and many groups are working on analysis of the experiment data, such as,the SAID group, MAID group, EBAC dynamical coupled- channels model ... See full document
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Covariant solution of the three-quark problem in quantum field theory: the nucleon
... In a recent study we have reported the first fully Poincar´e-covariant computation of the nucleon’s mass and Faddeev amplitude beyond the quark-diquark approxima- tion [35]. The numerical solution of the ... See full document
10
The fermi coupling, mass spectrum and decay properties of mesons within the covariant confined quark model
... stable quark-antiquark bound states have been investigated by using a relativistic quark model with analytic ...electromagnetic decay widths of ... See full document
6
Heavy mesons in the Quark Model
... In November 1974 the Brookhaven National Laboratory [1] announced the discovery of a new particle, called J. Almost at the same time the existence of another new particle, called ψ, was reported by the Stanford Linear ... See full document
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Study of the Bc → J/ψ + D(*)q decays in covariant confined quark model
... all physical observables through the helicity form factors Hm. In Table 2 we show widths of the Bc meson for general values of the Wilson coe ffi cients a 1 and a 2 obtained in this work[r] ... See full document
5
Searches for direct pair production of third generation squarks with the ATLAS detector
... ATLAS has searched for the direct production of the third generation squarks using the full 2012 dataset of LHC pp collisions at √ s = 8 TeV, corresponding to an integrated luminosity of 20 fb − 1 . Many analyses ... See full document
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J/ψ production at central rapidity in p–Pb collisions at √sNN = 5.02 TeV with ALICE
... The analysis for the measurement of the non-prompt component is currently being finalized. The main contributions to the systematic uncertainties a ff ecting this measurement are expected to be related to the evaluation of ... See full document
5
A Dual Quark Model with Spin
... l 9 Although this amplitude does have definite diseases to be discussed in the next chapter we shall assume that it is a reasonable way to calculate our quark diagrams in the limit that[r] ... See full document
133
Introduction to chiral symmetry in QCD
... elementary quark and gluon fields, while at low energies it is described by hadrons, leptons remaining the ...of quark flavors is greater than two, only the phase of spontaneous chiral symmetry breakdown ... See full document
19
Decay Constants of Beauty Mesons from QCD Sum Rules
... the decay constants of both pseudoscalar and vector beauty mesons reveals that in the bottom-quark sector two specific features of the sum-rule predictions show up: (i) For the input value of the ... See full document
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