scholarly journals Decay properties of P -wave charmed baryons from light-cone QCD sum rules

2017 ◽  
Vol 95 (9) ◽  
Author(s):  
Hua-Xing Chen ◽  
Qiang Mao ◽  
Wei Chen ◽  
Atsushi Hosaka ◽  
Xiang Liu ◽  
...  
Keyword(s):  
Light Cone ◽  
Sum Rules ◽  
P Wave ◽  
Qcd Sum Rules ◽  
Charmed Baryons ◽  
Decay Properties

scholarly journals P-wave charmed baryons from QCD sum rules

2015 ◽  
Vol 91 (5) ◽  
Author(s):  
Hua-Xing Chen ◽  
Wei Chen ◽  
Qiang Mao ◽  
Atsushi Hosaka ◽  
Xiang Liu ◽  
...  
Keyword(s):  
Sum Rules ◽  
P Wave ◽  
Qcd Sum Rules ◽  
Charmed Baryons

scholarly journals Decay properties of P-wave bottom baryons within light-cone sum rules

2020 ◽  
Vol 80 (2) ◽  
Author(s):  
Hui-Min Yang ◽  
Hua-Xing Chen ◽  
Er-Liang Cui ◽  
Atsushi Hosaka ◽  
Qiang Mao
Keyword(s):  
Mass Spectrum ◽  
Ground State ◽  
Light Cone ◽  
Sum Rules ◽  
Decay Process ◽  
P Wave ◽  
Vector Mesons ◽  
Decay Properties ◽  
Partner State

Abstract We use the method of light-cone sum rules to study decay properties of P-wave bottom baryons belonging to the SU(3) flavor $$\mathbf {6}_F$$6F representation. In Cui et al. (Phys Rev D 99:094021, 2019) we have studied their mass spectrum and pionic decays, and found that the $$\varSigma _{b}(6097)$$Σb(6097) and $$\varXi _{b}(6227)$$Ξb(6227) can be well interpreted as P-wave bottom baryons of $$J^P = 3/2^-$$JP=3/2-. In this paper we further study their decays into ground-state bottom baryons and vector mesons. We propose to search for a new state $$\varXi _b({5/2}^-)$$Ξb(5/2-), that is the $$J^P = 5/2^-$$JP=5/2- partner state of the $$\varXi _{b}(6227)$$Ξb(6227), in the $$\varXi _b({5/2}^-) \rightarrow \varXi _b^{*}\rho \rightarrow \varXi _b^{*}\pi \pi $$Ξb(5/2-)→Ξb∗ρ→Ξb∗ππ decay process. Its mass is $$12 \pm 5$$12±5 MeV larger than that of the $$\varXi _{b}(6227)$$Ξb(6227).

scholarly journals Identifying the Λb(6146)0 and Λb(6152)0 as D-Wave Bottom Baryons

Universe ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. 86
Author(s):  
Qiang Mao ◽  
Hua-Xing Chen ◽  
Hui-Min Yang
Keyword(s):  
Quantum Chromodynamics ◽  
Heavy Quark ◽  
Light Cone ◽  
Sum Rules ◽  
Mass Splitting ◽  
Effective Theory ◽  
Heavy Quark Effective Theory ◽  
Qcd Sum Rules ◽  
Decay Properties ◽  
D Wave

We study the Λ b ( 6146 ) 0 and Λ b ( 6152 ) 0 recently observed by LHCb using the method of Quantum Chromodynamics (QCD) sum rules within the framework of heavy quark effective theory. Our results suggest that they can be interpreted as D-wave bottom baryons of J P = 3 / 2 + and 5 / 2 + respectively, both of which contain two λ -mode excitations. We also investigate other possible assignments containing ρ -mode excitations. We extract all the parameters that are necessary to study their decay properties when using the method of light-cone sum rules. We predict masses of their strangeness partners to be m Ξ b ( 3 / 2 + ) = 6.26 − 0.14 + 0.11 GeV and m Ξ b ( 5 / 2 + ) = 6.26 − 0.14 + 0.11 GeV with the mass splitting Δ M = m Ξ b ( 5 / 2 + ) − m Ξ b ( 3 / 2 + ) = 4.5 − 1.5 + 1.9 MeV, and propose to search for them in future CMS, EIC, and LHCb experiments.

scholarly journals The Radiative Δ(1600) → γN Decay in the Light-Cone QCD Sum Rules

Universe ◽  
2021 ◽  
Vol 7 (8) ◽  
pp. 255
Author(s):  
Haifa I. Alrebdi ◽  
Thabit Barakat
Keyword(s):  
Decay Rate ◽  
Light Cone ◽  
Magnetic Dipole Moment ◽  
Sum Rules ◽  
Electric Quadrupole ◽  
The Other ◽  
Electric Quadrupole Moment ◽  
Multipole Moments ◽  
Qcd Sum Rules ◽  
Strongly Agree

Within the framework of the light-cone QCD sum rules method (LCSR’s), the radiative Δ(1600)→γN decay is studied. In particular, the magnetic dipole moment GM1(0) and the electric quadrupole moment GE1(0) are estimated. We also calculate the ratio REM=−GE1(0)GM1(0) and the decay rate. The predicted multipole moments and the decay rate strongly agree with the existing experimental results as well as with the other available phenomenological approaches.

scholarly journals ANALYSIS OF THE $B \to K^*_2(1430), a_2(1320), f_2(1270)$ FORM-FACTORS WITH LIGHT-CONE QCD SUM RULES

2011 ◽  
Vol 26 (37) ◽  
pp. 2761-2782 ◽  
Author(s):  
ZHI-GANG WANG
Keyword(s):  
Experimental Data ◽  
Light Cone ◽  
B Meson ◽  
Sum Rules ◽  
Form Factors ◽  
Distribution Amplitude ◽  
Qcd Sum Rules ◽  
Line Shapes ◽  
The Future

In this paper, we study the [Formula: see text] form-factors with the light-cone QCD sum rules, where the B-meson light-cone distribution amplitudes are used. In calculations, we observe that the line-shapes of the B-meson light-cone distribution amplitude ϕ+(ω) have significant impacts on the values of the form-factors, and expect to obtain severe constraints on the parameters of the B-meson light-cone distribution amplitudes from the experimental data in the future.

scholarly journals Magnetic moment of the XQ state with JPC=1+± in light cone QCD sum rules

2017 ◽  
Vol 95 (3) ◽  
Author(s):  
A. K. Agamaliev ◽  
T. M. Aliev ◽  
M. Savcı
Keyword(s):  
Magnetic Moment ◽  
Light Cone ◽  
Sum Rules ◽  
Qcd Sum Rules

scholarly journals Charmed baryon decay to a strange baryon plus a pion using QCD sum rules

2019 ◽  
Vol 34 (03n04) ◽  
pp. 1950015 ◽  
Author(s):  
Leonard S. Kisslinger ◽  
Bijit Singha
Keyword(s):  
Sum Rules ◽  
Qcd Sum Rules ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Strange Baryon ◽  
Weak Decays ◽  
Baryon Decay

This is an extension of the prediction of strange baryon decays to the decays of charmed baryons using QCD sum rules. Using QCD sum rules, we estimate the decay [Formula: see text]. Although some weak decays of the [Formula: see text] have been measured, since it is difficult to measure [Formula: see text] our estimates should be useful for future experiments.

scholarly journals Radiative φ→f0(980)γ decay in light cone QCD sum rules

2002 ◽  
Vol 527 (3-4) ◽  
pp. 193-198 ◽  
Author(s):  
T.M. Aliev ◽  
A. Özpineci ◽  
M. Savcı
Keyword(s):  
Light Cone ◽  
Sum Rules ◽  
Qcd Sum Rules
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