More about the Mass of the New Charmonium States

Download

index.pdf

Date

2015-01-01

Author

Alıyev, Tahmasıb
Özşahin, Hikmet
Savcı, Mustafa

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

49
views

37
downloads

If X(3872) is described by the picture as a mixture of the charmonium and molecular D*D states; Y(3940) as a mixture of the chi(c0) and D* D* states; and Y(4260) as a mixture of the tetraquark and charmonium states, their orthogonal combinations should also exist. We estimate the mass and residues of the states within the QCD sum rules method. We find that the mass splitting among X, Y and their orthogonal states is at most 200 MeV. Experimental search of these new states can play critical role for establishing the nature of the new charmonium states.

Subject Keywords

QCD sum-rules

URI

https://hdl.handle.net/11511/29940

Journal

ADVANCES IN HIGH ENERGY PHYSICS

DOI

https://doi.org/10.1155/2015/728098

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

The role of sigma-meson in omega -> pi pi gamma decays and the coupling constant g(omega sigma gamma) Gokalp, A; Yılmaz, Osman (2000-11-23) We study the omega --> pi pi gamma decays by adding to the amplitude calculated within the framework of chiral perturbation theory and vector meson dominance the amplitude of sigma -meson intermediate state. We estimate the coupling constant g(omega sigma gamma) utilizing the experimental value of the omega --> pi (0)pi (0)gamma decay rate.
Strong coupling constants of the octet baryons to Kand pi mesons in light cone QCD sum rules Alıyev, Tahmasıb; Özpineci, Altuğ (2007-06-20) In this work, the strong coupling constants of the octet baryons to the K and pi mesons are studied within the Light Cone QCD sum rule method. It is well known that in the SU(3)(f) limit, these couplings can be expressed in terms of only 2 constants, so called F and D constants. In this work, the SU(3)(f) symmetry violating effects are also studied and it is shown that all the coupling constants can be expressed in terms of four analytical functions of the quark parameters.
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.
Tensor form factors of nucleon in QCD ERKOL, GÜRAY; Özpineci, Altuğ (2011-10-25) We extract the isovector tensor nucleon form factors, which play an important role in understanding the transverse spin structure of the nucleon when related to the quark helicity-flip generalized parton distributions via their first moments. We employ the light-cone QCD sum rules to leading order in QCD and include distribution amplitudes up to twist 6 in order to calculate the three tensor form factors H(T). E(T) and (H) over bar (T). Our results agree well with those from other approaches in the low and ...
Mass Splittings of Heavy Quark Spin Symmetry Partners of X(3872) in QCD Sum Rules Çetin, Hande; Özpineci, Altuğ; Department of Physics (2021-9) The parameters of QCDSR such as the values of the condensates and the Borel mass are not well-established and hence increase the uncertainty of predictions up to 30%. In this study, mass splittings of the heavy quark spin symmetry partners of the exotic particle X(3872) are studied from the tetraquark aspect. In order to accomplish the task, randomised sets of the parameters are generated to find the squared mass values of the partners, and the results are compared with the findings in the literature. Rando...

Citation Formats

T. Alıyev, H. Özşahin, and M. Savcı, “More about the Mass of the New Charmonium States,” ADVANCES IN HIGH ENERGY PHYSICS, pp. 0–0, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/29940.