<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>D</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:msup><mml:mi>D</mml:mi><mml:mo>*</mml:mo></mml:msup><mml:mo stretchy="false">)</mml:mo><mml:mi>e</mml:mi><mml:msub><mml:mi>ν</mml:mi><mml:mi>e</mml:mi></mml:msub></mml:math>transitions at finite temperature in QCD

Azizi, K.; Er, N.

doi:10.1103/physrevd.81.096001

Cited by 5 publications

(7 citation statements)

References 29 publications

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“…[10] the leptonic decay constant of both pseudoscalar and vector mesons decreases with increasing T and vanishes at a critical temperature T c . Conversely, the masses show little dependence on the temperature, except very close to T c , where the pseudoscalar meson masses rise slightly by (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)%, and the vector meson masses diminish by some (20-30)%. In other works, the D s0 (2317) meson mass decreases with increasing temperature and loses approximately (10-15)% of its mass and also the decay constant decreases with growing temperature and vanishes approximately when the critical temperature is assumed to be 150 MeV in ref.…”

Section: Parametersmentioning

confidence: 98%

“…[2], the suppression of the J/ψ state in hot medium was considered as a signature for the QGP production in heavy-ion collision experiments [6][7][8][9]. In this context, numerous studies have been devoted to the determination of the thermal properties of hadrons in a hot medium [10][11][12][13][14][15][16][17][18][19][20]. Studying thermal properties of hadrons and their fate in high temperatures gives us an understanding about the collective behavior of strongly interacting matter and it also helps us to explore the mechanisms behind confinement and chiral symmetry breaking.…”

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confidence: 99%

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Light D-wave axial-tensor K₂(1820) meson at finite temperature

Türkan

Daǧ

Süngü

et al. 2019

EPL

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In this work the properties of the axial-tensor K2(1820) meson in a hot medium are investigated. The mass and the decay constant of this state are calculated via thermal QCD sum rules considering QCD condensates up to dimension five. Our analysis show that both mass and decay constant stay almost monotonous up to certain temperatures and then they diminish with increasing temperature. The mass and decay constant estimated at zero temperature are in good agreement with the present experimental data and theoretical estimations.

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Section: Parametersmentioning

confidence: 98%

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confidence: 99%

Light D-wave axial-tensor K₂(1820) meson at finite temperature

Türkan

Daǧ

Süngü

et al. 2019

EPL

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“…For instance in Ref. [50,51] despite decreasing of the considered particles' mass and pole residue in terms of temperature, decay widths are increased with the temperature. Parameter…”

Section: Parametersmentioning

confidence: 99%

In the Pursuit of $X(5568)$ and its Charmed Partner

Süngü¹,

Türkan²,

Veliev³

2019

Acta Phys. Pol. B

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The recent observation by the DØ collaboration of the first tetraquark candidate with four different quark flavors (u, d, s and b) in the B 0 s π ± channel having a narrow structure, has still not been confirmed by other collaborations. Further independent experiments are required either to confirm the X(5568) state or to set limits on its production. Though quantum numbers are not exactly clear, the results existing in the literature indicate that it is probably an axial-vector or scalar state candidate. In this study, mass and pole residue of the X(5568) resonance assuming as a tightly bound diquark, with spin-parity both J P = 1 + or J P C = 0 ++ are calculated using two-point Thermal SVZ sum rules technique by including condensates up to dimension six. Moreover, its partner in the charm sector is also discussed. Investigations defining the thermal properties of X(5568) and its charmed partner may provide valuable hints and information for the upcoming experiments such as CMS, LHCb and PANDA.

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“…At finite width, the main sum rule ob-tained by matching the physical and OPE sides in Borel scheme takes the form (see for instance Ref. [45] for more details):…”

Section: Numerical Analysesmentioning

confidence: 99%

Light scalar K0*(700) meson in vacuum and a hot medium

2019

Self Cite

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The K * 0 (700) meson appears as the lightest strange scalar meson in PDG. Although there were a lot of experimental and theoretical efforts to establish this particle and determine its properties and nature, it still needs confirmation in an experiment and its internal quark-gluon organization needs to be clarified. In this connection, we study some spectroscopic properties of this state in a hot medium as well as a vacuum by modeling it as a usual meson of a quark and an aniquark. In particular, we investigate its mass and coupling or decay constant in terms of the temperature of a hot medium by including the medium effects by the fermionic and gluonic parts of the energy momentum tensor as well as the temperature-dependent continuum threshold, quark, gluon and mixed condensates. We observe that the mass of K * 0 (700) remains unchanged up to T ≃ 0.6 Tc with Tc being the critical temperature, but it starts to diminish after this point and approaches zero near to the critical temperature referring to the melting of the meson. The coupling of K * 0 (700) is also sensitive to T at higher temperatures. It starts to grow rapidly after T ≃ 0.85 Tc. We turn off the medium effects and calculate the mass and coupling of the K * 0 (700) state at zero temperature. The obtained mass is in accord with the average Breit-Wigner mass value reported by PDG. I. MOTIVATIONThe light scalar mesons with a mass below 1 GeV are among particles that are not experimentally well established and their nature needs to be clarified. Their mass and width suffer from large uncertainties. Hence, their investigation constitutes one of the directions of research in high energy physics. There are a lot of models and approaches aiming to clarify their nature and internal quark-gluon organization. The standard quark model for the mesons handling them as bound states of quarks and antiquarks fails to correctly describe the mass hierarchy and the existing large uncertainties on the parameters of these particles. As a result, some of these particles like the light unflavored f 0 (500) state have already been treated as the unconventional exotic states of compact tetraquarks or two-meson molecules [1,2].The lightest scalar strange meson K * 0 (700) appears in PDG with the quantum numbers I(J P ) = 1/2(0 + ) and the qualifier "needs confirmation". The reported average T-matrix pole as well as Breit-Wigner mass and width for this state are [3]:T-matrix pole √ s = (630 − 730) − i(260 − 340) M eV, Breit-Wigner mass = 824 ± 30 M eV, Breit-Wigner width = 478 ± 50 M eV.(1)

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BtoD(D*)eνetransitions at finite temperature in QCD

Cited by 5 publications

References 29 publications

Light D-wave axial-tensor K₂(1820) meson at finite temperature

Light D-wave axial-tensor K₂(1820) meson at finite temperature

In the Pursuit of $X(5568)$ and its Charmed Partner

Light scalar K0*(700) meson in vacuum and a hot medium

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BtoD(D*)eνetransitions at finite temperature in QCD

Cited by 5 publications

References 29 publications

Light D-wave axial-tensor K2(1820) meson at finite temperature

Light D-wave axial-tensor K2(1820) meson at finite temperature

In the Pursuit of $X(5568)$ and its Charmed Partner

Light scalar K0*(700) meson in vacuum and a hot medium

Contact Info

Product

Resources

About

Light D-wave axial-tensor K₂(1820) meson at finite temperature

Light D-wave axial-tensor K₂(1820) meson at finite temperature