Showing 221 - 240 results of 383 for search '"quark model"', query time: 0.18s Refine Results
  1. 221

    K0Λ photoproduction off the neutron with nucleon resonances by Sang-Ho Kim, Hyun-Chul Kim

    Published 2018-11-01
    “…The strong couplings of nucleon resonances with KΛ vertices are constrained by quark model predictions. The numerical results of the total and differential cross sections are found to be in qualitative agreement with the recent CLAS and FOREST experimental data. …”
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    Article
  2. 222

    Deciphering weak decays of triply heavy baryons by SU(3) analysis by Fei Huang, Ji Xu, Xi-Ruo Zhang

    Published 2021-11-01
    “…Abstract Baryons with three heavy quarks are the last missing pieces of the lowest-lying baryon multiplets in the quark model after the discovery of doubly heavy baryons. …”
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    Article
  3. 223

    The role of electroweak penguin and magnetic dipole QCD penguin on hadronic b Quark Decays by H Mehrban

    Published 2010-03-01
    “…This research, works with the effective Hamiltonian and the quark model. Using, the decay rates of matter-antimatter of b quark was investigated. …”
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    Article
  4. 224

    The magnetic polarizabilities and g-factor of the neutral and charged ρ mesons in a strong magnetic field on the lattice by Solovjeva O.E., Luschevskaya E.V., Teryaev O.V.

    Published 2016-01-01
    “…This value is compatible with experimental determination and theoretical value from relativistic quark model.…”
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    Article
  5. 225

    Quasi-fractionalization of edge spin in chirality-assisted cluster-based Haldane state on triangular spin tube by Takanori Sugimoto, Takami Tohyama

    Published 2023-10-01
    “…Abstract Fractionalization of quantum degrees of freedom holds the key to finding new phenomena in physics, e.g., the quark model in hadron physics and the spin-charge separation in strongly-correlated electron systems. …”
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    Article
  6. 226

    A Multiquark Approach to Excited Hadrons and Regge Trajectories by S. S. Afonin

    Published 2019-01-01
    “…The resulting classification of light mesons turns out to be in a better agreement with the experimental observations than the standard quark model classification. It is argued that the total energy of quark components should be proportional to the hadron mass squared rather than the linear mass. …”
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    Article
  7. 227

    Spectroscopic behavior of fully heavy tetraquarks by Hong-Tao An, Si-Qiang Luo, Zhan-Wei Liu, Xiang Liu

    Published 2023-08-01
    “…Abstract Stimulated by the observation of the X(6900) from LHCb in 2020 and the recent results from CMS and ATLAS in the di- $$J/\psi $$ J / ψ invariant mass spectrum, in this work we systematically study all possible configurations for the ground states of fully heavy tetraquark in the constituent quark model. By our calculation, we present their spectroscopic behaviors including binding energy, lowest meson–meson thresholds, specific wave function, magnetic moment, transition magnetic moment, radiative decay width, rearrangement strong width ratio, internal mass contributions, relative lengths between (anti)quarks, and the spatial distribution of four valence (anti)quarks. …”
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    Article
  8. 228

    Search for long-lived massive charged particles in 1.96 TeV pp collisions. by Aaltonen, T, Adelman, J, Akimoto, T, Alvarez González, B, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Apresyan, A, Arisawa, T, Artikov, A, Ashmanskas, W, Attal, A, Aurisano, A, Azfar, F, Badgett, W, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Barria, P, Bartsch, V, Bauer, G, Beauchemin, P

    Published 2009
    “…We set an upper bound on the production cross section and, interpreting this result within the context of a stable scalar top-quark model, set a lower limit on the particle mass of 249 GeV/c2 at 95% C.L.…”
    Journal article
  9. 229

    The Drell-Yan process with pions and polarized nucleons by S. Bastami, L. Gamberg, B. Parsamyan, B. Pasquini, A. Prokudin, P. Schweitzer

    Published 2021-02-01
    “…The non-perturbative input for the TMDs is taken from the light-front constituent quark model, the spectator model, and available parametrizations of TMDs extracted from the experimental data. …”
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    Article
  10. 230

    Doubly charmed multibaryon systems by H. Garcilazo, A. Valcarce

    Published 2020-08-01
    “…All two-baryon interactions are consistently derived from a constituent quark model tuned in the light-flavor hadron phenomenology: spectra and interactions. …”
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    Article
  11. 231

    Spin-1 quarkonia in a rotating frame and their spin contents by HyungJoo Kim, Sungtae Cho, Su Houng Lee

    Published 2023-08-01
    “…Specifically, we find the spin contents of J/ψ, χc1, ϒ(1S), and χb1 are slightly different from the naive quark model picture. For example, the J/ψ is traditionally considered as an S-wave particle, but we find quarks do not carry all of the total spin.…”
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    Article
  12. 232

    Nucleon structure functions and longitudinal spin asymmetries by Dahiya Harleen, Randhawa Monika, Dhiman Nisha

    Published 2017-01-01
    “…The chiral constituent quark model (χCQM) has been used to analyse the phenomenological dependence of the spin independent (F1p, n and F2p, n) and the spin dependent (g2p, n) structure functions of the nucleon on the the Bjorken scaling variable x. …”
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    Article
  13. 233

    Weak decays of triply heavy baryons in light front approach by Wei Wang, Zhi-Peng Xing

    Published 2022-11-01
    “…We analyze weak decays of triply heavy baryon Ωccc++ and calculate the form factors for Ωccc++→Ξcc++/Ωcc+ transitions in a light front quark model. The momentum distributions in form factors are accessed via the pole-model parametrization. …”
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    Article
  14. 234

    Branching fractions and polarizations of D→Vℓν_{ℓ} within QCD light-cone sum rule by Hai-Bing Fu, Wei Cheng, Long Zeng, Dan-Dan Hu, Tao Zhong

    Published 2020-10-01
    “…Our predictions are consistent with covariant confining quark model results within errors. Thus, we think the LCSR approach for HFFs is applicable for dealing with the D-meson semileptonic decays.…”
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    Article
  15. 235

    Baryon resonances in the baryon meson scattering coupled to the q3-state by Shimizu K., Takeuchi S.

    Published 2010-04-01
    “…The nucleon also gets the self energy of about 130 MeV, so the N∆ mass difference, which is one of the key values in the quark model, does not change much. It also found that the positive parity excited nucleon mass can be reduced by more than 400 MeV and become around 1440 MeV after the mixing to the continuum is taken into account.…”
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    Article
  16. 236

    Pseudoscalar mesons from a PNJL model at zero temperature by R. M. Aguirre, O. Lourenço

    Published 2024-10-01
    “…We use a recently proposed phenomenological quark model, known as the PNJL0, which takes into account the confinement/deconfinement phase transition by means of the traced Polyakov loop ( $$\varPhi $$ Φ ) which serves as an order parameter at zero temperature. …”
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    Article
  17. 237

    Study of the spectra and decay widths of singly heavy baryons by García-Tecocoatzi H., Giachino A., Ramirez-Morales A., Rivero-Acosta A., Santopinto E., Vaquera-Araujo C.A.

    Published 2024-01-01
    “…The masses of singly heavy baryons up to the D-wave are calculated within a constituent quark model, employing the three-quark and quarkdiquark schemes. …”
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    Article
  18. 238

    Off-shell generalized parton distributions and form factors of the pion by Wojciech Broniowski, Vanamali Shastry, Enrique Ruiz Arriola

    Published 2023-05-01
    “…We provide an explicit realization in terms of a chiral quark model, where we show that the off-shell effects in GPDs are potentially significant in modeling physical processes and should not be neglected.…”
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    Article
  19. 239

    Recent empirical developments in the study and understanding of XYZ states by Shen Chengping

    Published 2016-01-01
    “…Exotic hadronic states beyond the conventional quark model (called charmoniumlike/bottomoniumlike states or XYZ particles) have been searched for and many candidates were proposed including glueballs, hybrids, multi-quark states, hadron molecules, etc. …”
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    Article
  20. 240

    The newly observed $$\Lambda _b(6072)^0$$ Λb(6072)0 structure and its $$\rho $$ ρ -mode nonstrange partners by Wei Liang, Qi-Fang Lü

    Published 2020-08-01
    “…These two states have good potentials to be observed in future experiments, which may help us to distinguish the three-quark model and diquark model.…”
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    Article