Generalized heavy-to-light form factors in light-cone sum rules

Meißner, Ulf‐G.; Wang, Wei

doi:10.1016/j.physletb.2014.02.009

Cited by 81 publications

(84 citation statements)

References 103 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The twist-3 one has the same asymptotic form with the LCDAs for a scalar resonance [31]. Inspired by this similarity, we may plausibly introduce an intuitive matching between the D → f 0 and D → (ππ) S form factors [7]:…”

Section: Scalar ππ Form Factor and D To S-wave ππmentioning

confidence: 90%

See 1 more Smart Citation

Chiral dynamics, S-wave contributions and angular analysis in $$D\rightarrow \pi \pi \ell \bar{\nu }$$ D → π π ℓ ν ¯

2017

Self Cite

View full text Add to dashboard Cite

We present a theoretical analysis of the D − → π + π − ν andD 0 → π + π 0 ν decays. We construct a general angular distribution which can include arbitrary partial waves of ππ. Retaining the S-wave and P-wave contributions we study the branching ratios, forward-backward asymmetries and a few other observables. The P-wave contribution is dominated by ρ 0 resonance, and the S-wave contribution is analyzed using the unitarized chiral perturbation theory. The obtained branching fraction for D → ρ ν, at the order 10 −3 , is consistent with the available experimental data. The S-wave contribution has a branching ratio at the order of 10 −4 , and this prediction can be tested by experiments like BESIII and LHCb. Future measurements can also be used to examine the π -π scattering phase shift.

show abstract

Section: Scalar ππ Form Factor and D To S-wave ππmentioning

confidence: 90%

“…Some analyses of multi-body heavy meson decays can be found in Refs. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], where the final state interactions between the light pseudoscalar mesons are taken into account.…”

Section: Introductionmentioning

confidence: 99%

Chiral dynamics, S-wave contributions and angular analysis in $$D\rightarrow \pi \pi \ell \bar{\nu }$$ D → π π ℓ ν ¯

2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…A similar reasoning can be applied to the penguin diagram. On the other hand, if factorization can be proved, the heavy to light generalized transition form factors [25] like a heavy meson into Kπ/ππ, for instance, will also play a role in CPV studies.…”

Section: Interfering Resonant and Non Resonant Amplitudesmentioning

confidence: 99%

CPviolation: Dalitz interference,CPT, and final state interactions

et al. 2015

View full text Add to dashboard Cite

Resonances and final state interactions (FSI) play a role in the formation of CP violation (CPV) constrained by CPT invariance. We provide a general formulation of CPV including resonances and FSI starting from the CPT constraint. Our discussion is elaborated within a simple B decay model with the ρ and f0(980) resonances plus a non resonant background including the ππ → KK coupled amplitude. We consider few illustrative examples to show the interference patterns appearing in the CP asymmetry, namely, that from the ρ resonance plus a non-resonant amplitude, and that from the interference of the ρ and f0 (980) resonances. We perform the fit of the CP asymmetry for the charmless three-body B

show abstract

“…In this paper we shall further use the method of light-cone QCD sum rules [86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101][102][103][104][105] to study the decay properties of these P -wave charmed baryons, the method of which is also based on the heavy quark effective theory (HQET). We shall only study their S-wave decay properties, and note that their D-wave decays can also happen but these contributions may not be significant.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2017

View full text Add to dashboard Cite

We study decay properties of the P -wave charmed baryons using the method of light-cone QCD sum rules, including the S-wave decays of the flavor3F P -wave charmed baryons into groundstate charmed baryons accompanied by a pseudoscalar meson (π or K) or a vector meson (ρ or K * ), and the S-wave decays of the flavor 6F P -wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar meson (π or K). We study both two-body and three-body decays which are kinematically allowed. We find two mixing solutions from internal ρ-and λ-mode excitations, which can well describe both masses and decay properties of the Λc(2595), Λc(2625), Ξc(2790) and Ξc(2815). We also discuss the possible interpretations of P -wave charmed baryons for the

show abstract

Generalized heavy-to-light form factors in light-cone sum rules

Cited by 81 publications

References 103 publications

Chiral dynamics, S-wave contributions and angular analysis in $$D\rightarrow \pi \pi \ell \bar{\nu }$$ D → π π ℓ ν ¯

Chiral dynamics, S-wave contributions and angular analysis in $$D\rightarrow \pi \pi \ell \bar{\nu }$$ D → π π ℓ ν ¯

CPviolation: Dalitz interference,CPT, and final state interactions

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

Contact Info

Product

Resources

About