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Doubly heavy spin-1/2 baryon spectrum in QCD
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Date
2012-12-01
Author
Alıyev, Tahmasıb
Savcı, Mustafa
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We calculate the mass and residue of the heavy spin-1/2 baryons containing two heavy h or c quarks in the framework of QCD sum rules. We use the most general form of the interpolating current in its symmetric and anti-symmetric forms with respect to the exchange of heavy quarks, to calculate the two-point correlation functions describing the baryons under consideration. A comparison of the obtained results with existing predictions from various approaches is also made.
Subject Keywords
QCD sum rules
,
Heavy baryons
,
Doubly heavy baryons
,
Charmed and bottom baryons
URI
https://hdl.handle.net/11511/47780
Journal
NUCLEAR PHYSICS A
DOI
https://doi.org/10.1016/j.nuclphysa.2012.09.009
Collections
Department of Physics, Article
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The strong coupling constants among members of the heavy spin-3/2 baryons containing single heavy quark with light pseudoscalar mesons are calculated in the framework of the light cone QCD sum rules. Using symmetry arguments, some structure independent relations among different correlation functions are obtained. It is shown that all possible transitions can be described in terms of one universal invariant function whose explicit expression is Lorenz structure dependent.
Phenomenology of the Heavy Flavored Spin 3/2 Baryons in Light Cone QCD
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Motivated by the results of the recent experimental discoveries for charm and bottom baryons, the masses and magnetic moments of the heavy baryons with J(P) = 3/2(+) containing a single heavy quark are Studied within light Cone QCD sum rules method. Our results on the masses of heavy baryons are in good agreement with predictions of other approaches, as well as with the existing experimental data.
Strong Coupling Constants of Heavy Baryons With Light Mesons in QCD
Alıyev, Tahmasıb; Savcı, Mustafa (2012-06-21)
The strong coupling constants of the heavy spin-1/2 and spin-3/2 baryons with light pseudoscalar and vector mesons are calculated in the framework of the light cone QCD sum rules. Using the symmetry arguments, some structure independent relations among different correlation functions are obtained. It is shown that all possible transitions are described by only one invariant function, whose explicit expression is structure dependent.
Baryon-Baryon-Meson Coupling Constants in QCD
Alıyev, Tahmasıb; Özpineci, Altuğ; Savcı, Mustafa (2010-06-23)
The strong coupling constant of decuplet and octet baryons to vector and pseudoscalar mesons are calculated in light cone QCD sum rules in general case and when the SU(3)(f) symmetry is taken into account. A comparison of the obtained results with the existing experimental data and predictions of the other nonperturbative approaches is also made.
Radiative decays of the heavy flavored baryons in light cone QCD sum rules
Alıyev, Tahmasıb; Özpineci, Altuğ (2009-03-01)
The transition magnetic dipole and electric quadrupole moments of the radiative decays of the sextet heavy flavored spin 3/2 to the heavy spin 1/2 baryons are calculated within the light cone QCD sum rules approach. Using the obtained results, the decay rate for these transitions are also computed and compared with the existing predictions of the other approaches.
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T. Alıyev and M. Savcı, “Doubly heavy spin-1/2 baryon spectrum in QCD,”
NUCLEAR PHYSICS A
, pp. 59–70, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47780.