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Article Citation - WoS: 12Citation - Scopus: 11Determination of the Possible Quantum Numbers for the Newly Observed Ξb< State(Springer, 2021) Azizi, K.; Sarac, Y.; Sundu, H.The LHCb Collaboration recently reported the observation of a new excited bottom baryon Xi(b)(6227)(0) and announced an improvement in the measurements related to the previously observed Xi(b)(6227)(-) state. We conduct an analysis for Xi(b)(6227)(0) state considering it as isospin partner of the Xi(b)(6227)(-) resonance and possibly 1P or 2S excited state with spin J = 3/2. The corresponding masses for both possibilities have consistent results with the experimental data, indicating that only with the mass sum rules, one can not make exact decision on the nature and quantum numbers of this state. To go further, the decays of these possible excited states to Xi(-)(b)pi(+) final state are also considered and the relevant strong coupling constants are extracted from the light cone sum rules. The obtained decay width values support the possibility of Xi(b)(6227)(0) to be the 1P excited state of Xi(b)(5945)(0) baryon.Article Citation - WoS: 26Citation - Scopus: 28Nature of the Ω (2012) Through Its Strong Decays(Springer, 2018) Aliev, T. M.; Azizi, K.; Sarac, Y.; Sundu, H.We extend our previous analysis on the mass of the recently discovered Omega (2012) state by investigation of its strong decays and calculation of its width employing the method of light cone QCD sum rule. Considering two possibilities for the quantum numbers of Omega (2012) state, namely 1P orbital excitation with J(P) = 3/2(-) and 2S radial excitation with J(P) = 3/2(+), we obtain the strong coupling constants defining the Omega (1P/2S) -> Xi K decays. The results of the coupling constants are then used to calculate the decay width corresponding to each possibility. Comparison of the obtained results on the total widths in this work with the experimental value and taking into account the results of our previous mass prediction on the Omega (2012) state, we conclude that this state is 1P orbital excitation of the ground state Omega baryon, whose quantum numbers are J(P) = 3/2(-).Article Citation - WoS: 5Citation - Scopus: 3Investigation of Λ (1405)as a molecular pentaquark state(Springer, 2024) Azizi, K.; Sarac, Y.; Sundu, H.Lambda ( 1405 ) is one of the interesting particles with its unclear structure and distinct properties. It has a light mass compared to its non-strange counterpart, despite the strange quark it carries. This situation puts the investigation of this resonance among the hot topics in hadron physics and collects attention to clarify its properties. In this study, we focus on the calculation of the mass and residue of the Lambda ( 1405 ) resonance within the framework of QCD sum rules. We assign a structure in the form of a molecular pentaquark composed from admixture of K - meson-neutron. Using an interpolating current in this form, the masses and the current coupling constant are attained as m = 1406 +/- 128 MeV and lambda = ( 3.35 +/- 0.35 ) x 10( - 5) GeV 6 for q and m = 1402 +/- 141 MeV and lambda = ( 4.08 +/- 1.08 ) x 10( - 5) GeV 6 for I Lorentz structures entering the calculations, respectively. The obtained mass values agree well with the experimental data supporting the plausibility of the considered structure.Article Citation - WoS: 8Interpretation of the Λc< Baryon Newly Seen by Belle Collaboration and Its Possible Bottom Partner(Springer, 2022) Azizi, K.; Sarac, Y.; Sundu, H.The developments in the experimental facilities and analyses techniques have recently lead to the observation of many hadronic states ranging from excitations of conventional hadrons to various exotic states. The baryons with single heavy quark are among these states providing an attractive field of research to get a better understanding of the nonperturbative nature of the strong interaction. Recently, the Belle Collaboration announced observation of the state Lambda(c)(2910)(+) with a mass 2913.8 +/- 5.6 +/- 3.8 MeV/c(2) and width 51.8 +/- 20.0 +/- 18.8 MeV. In the present study, by the mass analyses of different excitations at A c channel and their comparison with existing experimental information, we find that the spin-parity of this newly found excited state is J(P) = 1/2(-) and it is a 2 P state denoting by Lambda(c)(1/2(-), 2 P). We predict its current coupling as well, which can be served as one of the main input parameters to investigate different decays and interactions of this particle. We also determine the mass and current coupling of Lambda(b)(1/2(-), 2 P) as possible bottom counterpart of the new Lambda(c)(2910)(+) state, which may be in agenda of different experiments in near future.Article Citation - WoS: 10Citation - Scopus: 9Analysis of the strong D2* (2460)0 → D+ π- and Ds2*(2573)+ → D+ K0 transitions via QCD sum rules(Springer, 2014) Azizi, K.; Sarac, Y.; Sundu, H.The strong D-2* (2460)(0) -> D+ pi(-) and D-s2* (2573)(+) -> D+ K-0 transitions are analyzed via three-point QCD sum rules. First we calculate the corresponding strong coupling constants g(D2)*D pi and g(Ds2)*DK. Then we use them to calculate the corresponding decay widths and branching ratios. Making use of the existing experimental data on the ratio of the decay width in the pseudoscalar D channel to that of the vector D* channel, finally, we estimate the decay width and branching ratio of the strong D-2(*) (2460)(0) -> D*(2010)(+)pi(-) transition.Article Citation - WoS: 4Citation - Scopus: 4Investigation of the bc< → Χc2< Bar-< Transition Via Qcd Sum Rules(Springer, 2013) Azizi, K.; Sarac, Y.; Sundu, H.We calculate the transition form factors of the semileptonic in the framework of QCD sum rules taking into account the two-gluon condensate corrections. Using the obtained results of form factors we estimate the decay widths and branching ratios related to this transition at all lepton channels. A comparison of the obtained results with the predictions of other non-perturbative approaches are also made. The orders of branching ratios for different lepton channels indicate that the transition can be studied at LHC using the collected or future data.Article Citation - WoS: 43Citation - Scopus: 42Light Cone Qcd Sum Rules Study of the Semileptonic Heavy Ξq and Ξq′ Transitions To Ξ and Σ Baryons(Springer, 2012) Azizi, K.; Sarac, Y.; Sundu, H.The semileptonic decays of heavy spin-1/2, Xi(b(c)) and Xi(b(c))' baryons to the light spin-1/2, Xi and S baryons are investigated in the framework of light cone QCD sum rules. In particular, using the most general form of the interpolating currents for the heavy baryons as well as the distribution amplitudes of the Xi and Sigma baryons, we calculate all form factors entering the matrix elements of the corresponding effective Hamiltonians in full QCD. Having calculated the responsible form factors, we evaluate the decay rates and branching fractions of the related transitions.Article Citation - WoS: 21Citation - Scopus: 21Investigation of Hidden-Charm Double Strange Pentaquark Candidate pcss< Via Its Mass and Strong Decays(Springer, 2022) Azizi, K.; Sarac, Y.; Sundu, H.This work presents an analysis of a hidden charmed pentaquark candidate state with double strange quark in its quark content. The investigation is performed in two parts, which provide the mass prediction of the considered state and its partial decay widths for the P-css -> Xi(0) J/psi and P-css -> Xi D-+(c)s(-) channels. For the analyses, two-point and three-point QCD sum rule methods are applied to get the mass and the widths, respectively. The mass for this candidate state is obtained as m p(css) = 4600 +/- 155 MeV with corresponding current coupling constant lambda p(css)= (0.81 +/- 0.21) x 10(-3) GeV6. These results are used in the analysis of the partial widths of this state for the decays P-css -> Xi(0)J/psi and P-css -> Xi D-+(c)s(-). From these decays, the total width is obtained as Gamma = 12.29 +/- 2.94 MeV. These results may shed light on the future experimental searches in which such types of states are probed and may provide information to discriminate between such possible observations.Article Citation - Scopus: 8Interpretation of the Λc(2910)+Baryon Newly Seen by Belle Collaboration and Its Possible Bottom Partner(Springer, 2022) Azizi, K.; Sarac, Y.; Sundu, H.The developments in the experimental facilities and analyses techniques have recently lead to the observation of many hadronic states ranging from excitations of conventional hadrons to various exotic states. The baryons with single heavy quark are among these states providing an attractive field of research to get a better understanding of the nonperturbative nature of the strong interaction. Recently, the Belle Collaboration announced observation of the state Lambda(c)(2910)(+) with a mass 2913.8 +/- 5.6 +/- 3.8 MeV/c(2) and width 51.8 +/- 20.0 +/- 18.8 MeV. In the present study, by the mass analyses of different excitations at Lambda(c) channel and their comparison with existing experimental information, we find that the spin-parity of this newly found excited state is J(P)=1/2(-) and it is a 2P state denoting by Lambda(c)(1/2(-), 2P). We predict its current coupling as well, which can be served as one of the main input parameters to investigate different decays and interactions of this particle. We also determine the mass and current coupling of Lambda(b)(1/2(-), 2P) as possible bottom counterpart of the new Lambda(c)(2910)(+) state, which may be in agenda of different experiments in near future.Article Citation - WoS: 2Citation - Scopus: 2Investigation of Full Heavy QQQQ′Q Pentaquark Candidates(Springer, 2025) Azizi, K.; Sarac, Y.; Sundu, H.Recent breakthroughs in research and experimentation have led to the identification of numerous exotic states in particle physics. Each new discovery not only sparks excitement for future findings but also fuels interest in uncovering additional unknown states. Motivated by this perspective and the recent identification of both standard and exotic hadrons with an increasing number of heavy quarks, this study conducts a spectroscopic analysis of possible pentaquark candidates with spin-parity 12-, and quark content of cccbc and bbbcb. The masses of these states are calculated by considering the relevant Lorentz structures, including and 1, yielding the following results, respectively: for the P(4cb) state, mP(4cb)=11388.30 +/- 107.79 MeV and mP(4cb)=11368.30 +/- 112.68 MeV, and for the P(4bc) state, mP(4bc)=20998.30 +/- 121.52 MeV and mP(4bc)=20990.50 +/- 125.87 MeV. Additionally, the current coupling constants of these states to the vacuum, which are essential for analyzing their potential decay modes, are also provided in this study.
