scholarly journals Doubly charmed tetraquarks in a diquark–antidiquark model

2018 ◽  
Vol 33 (16) ◽  
pp. 1850096 ◽  
Author(s):  
Xiaojun Yan ◽  
Bin Zhong ◽  
Ruilin Zhu
Keyword(s):  
Excited States ◽  
Flavor Symmetry ◽  
Tetraquark State ◽  
Charmed Mesons ◽  
Charmed Baryon ◽  
Light Baryon ◽  
State Formula

We study the spectra of the doubly charmed tetraquark states in a diquark–antidiquark model. The doubly charmed tetraquark states form an antitriplet and sextet configurations according to flavor SU(3) symmetry. For the tetraquark state [Formula: see text], we show the mass for both bound and excited states. The two-body decays of tetraquark states [Formula: see text] and [Formula: see text] to charmed mesons have also been studied. In the end, the doubly charmed tetraquarks decays to a charmed baryon and a light baryon have been studied in the SU(3) flavor symmetry.

RECENT CLEO RESULTS ON CHARMED BARYONS

2001 ◽  
Vol 16 (supp01b) ◽  
pp. 495-501
Author(s):  
◽  
HORST SEVERINI
Keyword(s):  
Quark Model ◽  
Excited States ◽  
Ground State ◽  
Quantum Mechanical ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Cleo Collaboration ◽  
Theoretical Predictions ◽  
State Formula ◽  
Using Data

Using data recorded by the CLEO II and CLEO II.V detectors at CESR, we report new measurements of the [Formula: see text] and [Formula: see text] masses, and the first measurements of their intrinsic widths. The measured widths of these particles agree with the theoretical predictions. We also present a new measurement of the mass of the [Formula: see text] charmed baryon, observed by its decay into [Formula: see text], and the first observation of a new state which is identified as the [Formula: see text], the isospin partner of the previously discovered [Formula: see text] and [Formula: see text]. The quark model predicts many excited states of Λc and Σc baryons, some of which cannot, because of quantum mechanical conservations rules, decay via one pion to the ground state. We present results of a search for such states decaying via dipion decays into the ground state [Formula: see text] Recently, The CLEO collaboration also reported the existence of a pair of excited Ξc particles decaying into [Formula: see text]. These are thought to be orbitally excited Ξc' s with JP = 3/2-. Here we present a search for the analogous JP=1/2- particles, which are predicted to decay into [Formula: see text].

scholarly journals Charmed baryon weak decays with SU(3) flavor symmetry

2017 ◽  
Vol 2017 (11) ◽  
Author(s):  
C. Q. Geng ◽  
Y. K. Hsiao ◽  
Chia-Wei Liu ◽  
Tien-Hsueh Tsai
Keyword(s):  
Flavor Symmetry ◽  
Charmed Baryon ◽  
Weak Decays

scholarly journals Charmed baryon spectroscopy and light flavor symmetry from lattice QCD

2015 ◽  
Vol 92 (3) ◽  
Author(s):  
Paula Pérez-Rubio ◽  
Sara Collins ◽  
Gunnar S. Bali
Keyword(s):  
Lattice Qcd ◽  
Flavor Symmetry ◽  
Charmed Baryon ◽  
Baryon Spectroscopy

scholarly journals Recent developments in charmed baryon spectroscopy

2018 ◽  
Vol 191 ◽  
pp. 02013
Author(s):  
Elena Solovieva
Keyword(s):  
Quark Model ◽  
Excited States ◽  
Energy Levels ◽  
Ground States ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Recent Developments ◽  
Baryon Spectroscopy

An overview of recent developments in charmed baryon spectroscopy is given. The classification of charmed baryons is presented, a quark model for ground states is briefly described, and the energy levels of excited states are analyzed.

Stability of Excited Exciton States in Semiconductor Quantum Dots Under a Lateral Electric Field

2021 ◽  
Author(s):  
S. A. Safwan ◽  
Nagwa El Meshad
Keyword(s):  
Excited State ◽  
Binding Energy ◽  
Electric Field ◽  
Excited States ◽  
Ground State ◽  
Heavy Hole ◽  
Single Particles ◽  
Lateral Electric Field ◽  
State Formula ◽  
Ground State Stability

The effect of the lateral electric field (LEF) on the excited and ground state stability of an exciton ([Formula: see text]) confined in a parabolic cylindrical quantum dot (QD) was estimated in this study. The calculation was performed in the framework of single-band effective mass theory using a variational approach. Our results revealed that the ground state binding energy of [Formula: see text] decreases with increasing the cylindrical QD radius until the exciton stability is lost at moderate LEF strength. By increasing the LEF strength, the excited heavy-hole ([Formula: see text]) can create an excited state [Formula: see text] or excited state [Formula: see text] of [Formula: see text], and the results indicate that the first state is more stable. In contrast, when an excited electron ([Formula: see text]) combines with an excited hole ([Formula: see text]) or unexcited hole ([Formula: see text]), it contains no split excited states for [Formula: see text] with less binding energy than the state [Formula: see text]. Comparing our previous results of donor impurity [Formula: see text] with [Formula: see text], we found that [Formula: see text] has a more stable ground state than [Formula: see text]. Moreover, the excited [Formula: see text] states are more stable than the excited states of [Formula: see text]. The quantum Stark shift (QSS) of the light- and heavy-hole exciton energy was explored, and a blue-shifted and quadratic QSS was observed. In contrast, for single particles (electron, heavy-hole and light hole), a red-shifted and linear QSS was observed.

scholarly journals Production cross-sections of prompt ⋀c+ in pPb collisions at √SNN = 5 TeV with the LHCb detector

2018 ◽  
Vol 171 ◽  
pp. 18010
Author(s):  
Jiayin Sun
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Production Mechanism ◽  
Baryon Production ◽  
Charmed Mesons ◽  
Charmed Baryon ◽  
Nuclear Modification Factor ◽  
Nuclear Modification ◽  
Lhcb Detector ◽  
Modification Factor

The study of the nuclear modification factor and the forward/backward asymmetry in pPb collisions at [see formula in PDF] = 5 TeV is extended to the [see formula in PDF] baryon, providing the first measurement of charmed baryon production in pA collisions. The result is compared to the analogous measurement on charmed mesons, providing an insight on the production mechanism of charmed hadrons.

scholarly journals Three-body charmed baryon decays with SU(3) flavor symmetry

2019 ◽  
Vol 99 (7) ◽  
Author(s):  
C. Q. Geng ◽  
Y. K. Hsiao ◽  
Chia-Wei Liu ◽  
Tien-Hsueh Tsai
Keyword(s):  
Flavor Symmetry ◽  
Charmed Baryon ◽  
Three Body

scholarly journals Charmed baryon weak decays with decuplet baryon and SU(3) flavor symmetry

2019 ◽  
Vol 99 (11) ◽  
Author(s):  
Chao-Qiang Geng ◽  
Chia-Wei Liu ◽  
Tien-Hsueh Tsai ◽  
Yao Yu
Keyword(s):  
Flavor Symmetry ◽  
Charmed Baryon ◽  
Weak Decays ◽  
Decuplet Baryon
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