Light<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mn>2</mml:mn><mml:mo>++</mml:mo></mml:msup></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mn>0</mml:mn><mml:mo>++</mml:mo></mml:msup></mml:math>mesons

Anisovich, A. V.; Bugg, D. V.; Nikonov, V. A.; Sarantsev, A.; Sarantsev, V.V.

doi:10.1103/physrevd.85.014001

Cited by 20 publications

(19 citation statements)

References 35 publications

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“…Anisovich, et al [8] have used a monopole quark transition form factor to estimate R D = 0.23, which combines with our result to give an η − η ′ mixing angle of φ = 41…”

Section: Discussionsupporting

confidence: 74%

“…Most notably, exclusive D s decays to the dominant modes (φeν, ηeν, η ′ eν) involve no light valence quarks and thus provide an ideal opportunity for comparisons to lattice QCD results [1,2]. Additionally, since the D s primarily couples to the final state hadron's ss component, D s decay rates can probe the quark content of η − η ′ [3,4] and of the scalar f 0 [5][6][7] (including possible glue components [8,9]). …”

Section: Introductionmentioning

confidence: 99%

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ExclusiveDssemileptonic branching fraction measurements

et al. 2015

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We measure absolute branching fractions for six exclusive Ds semileptonic decays. We use data collected in the CLEO-c detector from e + e − annihilations delivered by the Cornell Electron Storage Ring with a center-of-mass energy near 4170 MeV. We find B(Ds → φeν) = (2.14 ± 0.17 ± 0.08)%, B(Ds → ηeν) = (2.28 ± 0.14 ± 0.19)%, and B(Ds → η ′ eν) = (0.68 ± 0.15 ± 0.06)% for the largest modes, where the first uncertainties are statistical and the second are systematic. We also obtain B(Ds → K 0 eν) = (0.39 ± 0.08 ± 0.03)%, B(Ds → K * eν) = (0.18 ± 0.04 ± 0.01)%, and B(Ds → f0eν, f0 → ππ) = (0.13 ± 0.03 ± 0.01)% for f0 masses within 60 MeV of 980 MeV. We use our results to determine the η − η ′ and f0 mixing angles with ss, and we combine our results with lattice calculations to estimate |Vcs|. This measurement improves upon the Ds semileptonic branching ratio precision and provides a new approach for future work that eliminates the D * s daughter photon reconstruction.

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“…Anisovich, et al [8] have used a monopole quark transition form factor to estimate R D = 0.23, which combines with our result to give an η − η ′ mixing angle of φ = 41…”

Section: Discussionsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

ExclusiveDssemileptonic branching fraction measurements

et al. 2015

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“…Many models were proposed in order to resolve this puzzle. It was shown that by including the mentioned hypothetical exotic state as well as the ππ final state interaction, one can describe all the data of the Υ (nS) → Υ (mS)ππ (n > m, n = 2, 3) transitions well [12,13]. Later on, it was shown that the double-bump structure of the dipion invariant mass spectra of the transitions Υ (4S) → Υ (1S, 2S)ππ can also be described with the same exotic particle [14].…”

Section: Introductionmentioning

confidence: 99%

Bound state nature of the exotic Zb states

et al. 2011

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Abstract. The assumption that the newly observed charged bottomonia states Z b (10610) and Z b (10650) are of molecular nature is confronted with the measured invariant mass distributions for the transitions of the Υ (5S) to the final statesIt is shown that the assumption that the Z b (10610) and Z b (10650) are BB * + c.c. and B * B * bound states, respectively, with very small binding energies is consistent with the data. The calculation is based on a power counting for bottom meson loops, which is explicitly given up to two-loop in the framework of a nonrelativistic effective field theory. We also show that if the Z b states are of molecular nature, then the data should not be analyzed by using a Breit-Wigner parametrization.PACS. 14.40.Rt Exotic mesons -13.25.Gv Decays of J/ψ, Υ , and other quarkonia

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“…[92] made a remark on the status of the state f 2 (1810) such that the state may be confuse with f 0 (1790). [92] has made note, if there was not any confusion between f 2 (1810) and f 0 (1790) there should missing 0 ++ state. As we observed throughout our calculated results, all states (except few states) are underestimated approximate 20 to 40 MeV.…”

Section: Resultsmentioning

confidence: 99%