Heavy quark expansion for heavy hadron lifetimes: completing the $$ 1/{m}_b^3 $$ corrections
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2020)089
Abstract: Abstract We complete the calculation of the contributions from the dimension six operators in the heavy quark expansion for the total lifetime of heavy hadrons. We give the leading order expressions for the Wilson coefficients… read more here.
Keywords: quark expansion; heavy hadron; hadron lifetimes; heavy quark ... See more keywords
Heavy quark jet fragmentation
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2018)109
Abstract: A bstractIn this paper we study the fragmentation of a parton into a jet containing a heavy quark. When heavy quarks are involved in a jet, the quark mass can lead to a numerically significant… read more here.
Keywords: heavy quark; quark jet; jet; mass ... See more keywords
Importance of heavy quark longitudinal structure function measurements at future circular collider energies
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Physics C"
DOI: 10.1088/1674-1137/abf1de
Abstract: In this article, we consider the ratio of structure functions for heavy quark pair production at low values of . The importance of this ratio for charm and beauty pair production is examined according to… read more here.
Keywords: future circular; function; structure; circular collider ... See more keywords
Heavy quark spin multiplet structure of Pc-like pentaquarks as a P-wave hadronic molecular state
Sign Up to like & getrecommendations! Published in 2019 at "Progress of Theoretical and Experimental Physics"
DOI: 10.1093/ptep/ptz146
Abstract: We study the heavy quark spin (HQS) multiplet structure of P-wave $Q\bar{Q}qqq$-type pentaquarks treated as molecules of a heavy meson and a heavy baryon. We define the light-cloud spin (LCS) basis decomposing the meson–baryon spin… read more here.
Keywords: quark spin; heavy quark; multiplet structure; quark ... See more keywords
Resonance states in the $Y_{c}N$ potential model
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review C"
DOI: 10.1103/physrevc.98.035203
Abstract: We calculate two-body $J^{\pi}=0^{+}, 1^{+}$, and $J^{\pi}=2^{+}$ resonance states of $Y_{c}$ ($= \Lambda_{c}$, $\Sigma_{c}$, or $\Sigma_{c}^{*}$) and $N$ using the complex scaling method. We employ the $Y_{c}N$-CTNN potentials, which were proposed in our previous study,… read more here.
Keywords: heavy quark; resonance; sigma sigma; resonance states ... See more keywords
Impact of longitudinal bulk viscous effects to heavy quark transport in a strongly magnetized hot QCD medium
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.094024
Abstract: The effects of longitudinal bulk viscous pressure on the heavy quark dynamics have been estimated in a strongly magnetized quark-gluon plasma within the Fokker-Planck approach. The bulk viscous modification to the momentum distribution of bulk… read more here.
Keywords: longitudinal bulk; medium; bulk; heavy quark ... See more keywords
Holographic charm and bottom pentaquarks. I. Mass spectra with spin effects
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.114021
Abstract: We revisit the three non-strange pentaquarks [ 12 1 2 − ]S=0,1 and [ 1 2 3 2 − ]S=1 predicted using the holographic dual description, where chiral and heavy quark symmetry are manifest in… read more here.
Keywords: charm bottom; heavy quark; spin;
Extraction of heavy-quark-expansion parameters from unquenched lattice data on pseudoscalar and vector heavy-light meson masses
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.014511
Abstract: We present a precise lattice computation of pseudoscalar and vector heavy-light meson masses for heavy-quark masses ranging from the physical charm mass up to $\simeq 4$ times the physical b-quark mass. We employ the gauge… read more here.
Keywords: meson masses; pseudoscalar vector; heavy quark; mass ... See more keywords
Implications of Heavy Quark-Diquark Symmetry for Excited Doubly Heavy Baryons and Tetraquarks
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DOI: 10.1103/physrevd.96.094028
Abstract: We give heavy quark-diquark symmetry predictions for doubly heavy baryons and tetraquarks in light of the recent discovery of the $\Xi_{cc}^{++}$ by LHCb. For five excited doubly charm baryons that are predicted to lie below… read more here.
Keywords: heavy quark; diquark symmetry; quark diquark;
Poincaré-covariant analysis of heavy-quark baryons
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.114017
Abstract: We use a symmetry-preserving truncation of meson and baryon bound-state equations in quantum field theory in order to develop a unified description of systems constituted from light- and heavy-quarks. In particular, we compute the spectrum… read more here.
Keywords: heavy quark; poincar covariant; quark; covariant analysis ... See more keywords
Heavy quark spin multiplet structure of $\bar{P}^{(*)}\Sigma_Q^{(*)}$ molecular states
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.014021
Abstract: We study the structure of heavy quark spin (HQS) multiplets for heavy meson-baryon molecular states in a coupled system of $\bar{P}^{(*)}\Sigma_{Q}^{(*)}$, with constructing the one-pion exchange potential with S-wave orbital angular momentum. Using the light… read more here.
Keywords: heavy quark; bar sigma; molecular states; quark spin ... See more keywords