Branching ratios and properties ofD-meson decays

Alvarez, M.; Barate, R.; Blöch, D.; Bonamy, P.; Borgeaud, P.; Burchell, M. J.; Burmeister, H.; Brunet, J. M.; Calviño, F.; Cattaneo, M.; Crespo, J.M.; Dalmagne, B.; David, M.; Ciaccio, L. Di; Dixon, John; Druet, P.; Duane, A.; Engel, J. P.; Ferrer, A.; Filippas, T. A.; Fokitis, E.; Forty, R.; Foucault, P.; Gazis, E. N.; Gerber, J.; Giomataris, Y.; Hofmokl, T.; Katsoufis, E.; Koratzinos, M.; Krafft, C.; Lefièvre, B.; Lemoigne, Y.; López, A.; Lui, Wei; Magneville, C.; Maltezos, A.; McEwen, J.G.; Papadopoulou, Th. D.; Pattison, B.; Poutot, D.; Primout, M.; Rahmani, H.; Roudeau, P.; Seez, C.; Six, J.; Strub, R.; Treille, D.; Triscos, P.; Tristram, G.; Villet, G.; Volte, A.; Wayne, M.; Websdale, D.; Wormser, G.; Zolnierowski, Y.

doi:10.1007/bf01558551

Cited by 12 publications

(4 citation statements)

References 9 publications

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“…A large contribution from a Kπ S-wave intermediate state has been observed in earlier experiments including MARKIII [2], NA14 [3], E691 [4], E687 [5], E791 [6,7], and CLEO-c [8] in the D þ → K − π þ π þ decay. Both E791 and CLEO-c interpreted their data with a modelindependent partial wave analysis (MIPWA) and found a phase shift at low Kπ mass to confirm theκπ component.…”

Section: Introductionsupporting

confidence: 52%

Amplitude analysis of theD+→KS0π+π
Ablikim¹,
Ачасов²,
Ai³
et al. 2014
Phys. Rev. D
18
0
4
0
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We perform an analysis of the D þ → K 0 S π þ π 0 Dalitz plot using a data set of 2.92 fb −1 of e þ e − collisions at the ψð3770Þ mass accumulated by the BESIII experiment, in which 166694 candidate events are selected with a background of 15.1%. The Dalitz plot is found to be well represented by a combination of six quasitwo-body decay channels [K 0 S ρ þ , K 0 S ρð1450Þ þ ,K Ã0 π þ ,K 0 ð1430Þ 0 π þ ,Kð1680Þ 0 π þ ,κ 0 π þ ] plus a small nonresonant component. Using the fit fractions from this analysis, partial branching ratios are updated with higher precision than previous measurements.

show abstract

Section: Introductionsupporting

confidence: 52%

Amplitude analysis of theD+→KS0π+π
Ablikim¹,
Ачасов²,
Ai³
et al. 2014
Phys. Rev. D
18
0
4
0
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show abstract

“…A number of experiments were performed to study heavy quark physics in hadron and photon beams. Early studies at CERN [535][536][537] had only exploratory character and this direction of physics was given up. At Fermilab, important results were achieved by E687 [538] upgraded to the FOCUS experiment [539], by E691 [540], upgraded to E791, and the SELEX experiment.…”

Section: Experiments At Fnalmentioning

confidence: 99%

Glueballs, hybrids, multiquarks

2007

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Glueballs, hybrids and multiquark states are predicted as bound states in models guided by quantum chromo dynamics (QCD), by QCD sum rules or QCD on a lattice. Estimates for the (scalar) glueball ground state are in the mass range from 1000 to 1800 MeV, followed by a tensor and a pseudoscalar glueball at higher mass. Experiments have reported evidence for an abundance of meson resonances with 0 −+ , 0 ++ and 2 ++ quantum numbers. In particular, the sector of scalar mesons is full of surprises starting from the elusive and mesons. The a 0 (980) and f 0 (980), discussed extensively in the literature, are reviewed with emphasis on their Janus-like appearance as KK molecules, tetraquark states or qq mesons. Most exciting is the possibility that the three mesons f 0 (1370), f 0 (1500), and f 0 (1710) might reflect the appearance of a scalar glueball in the world of quarkonia. However, the existence of f 0 (1370) is not beyond doubt and there is evidence that both f 0 (1500) and f 0 (1710) are flavour octet states, possibly in a tetraquark composition. We suggest a scheme in which the scalar glueball is dissolved into the wide background into which all scalar flavour-singlet mesons collapse.There is an abundance of meson resonances with the quantum numbers of the . Three states are reported below 1.5 GeV/c 2 whereas quark models expect only one, perhaps two. One of these states, (1440), was the prime glueball candidate for a long time. We show that (1440) is the first radial excitation of the meson.Hybrids may have exotic quantum numbers which are not accessible by qq mesons. There are several claims for J P C = 1 −+ exotics, some of them with properties as predicted from the flux tube model interpreting the quark-antiquark binding by a gluon string. The evidence for these states depends partly on the assumption that meson-meson interactions are dominated by s-channel resonances. Hybrids with non-exotic quantum numbers should appear as additional states. Light-quark mesons exhibit a spectrum of (squared) masses which are proportional to the sum of orbital angular momentum and radial quantum numbers. Two states do not fall under this classification. They are discussed as hybrid candidates.The concept of multiquark states has received revived interest due to new resonances in the spectrum of states with open and hidden charm. The new states are surprisingly narrow and their masses and their decay modes often do not agree with simple quark-model expectations.Lattice gauge theories have made strong claims that glueballs and hybrids should appear in the meson spectrum. However, the existence of a scalar glueball, at least with a reasonable width, is highly questionable. It is possible that hybrids will turn up in complex multibody final states even though so far, no convincing case has been made for them by experimental data. Lattice gauge theories fail to identify the nonet of scalar mesons. Thus, at the present status of approximations, lattice gauge theories seem not to provide a trustworthy guide into unknown territory ...

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“…The Dalitz plot analysis of the D + → K − π + π + was performed by different experiments, such as MARK III [13][14][15][16], NA14 [17,18], E691 [19,20], E687 [21,22], E791 [6] and FOCUS [8,9], using different decay models. These decay models differ in the way the S-wave is described: the sum of Breit-Wigners plus a constant nonresonant term, referred…”

Section: Jhep08(2014)135mentioning

confidence: 99%

“…(3.17) to 18) where the interaction between the identical pions is suppressed. The amplitude given in eq.…”

Section: Jhep08(2014)135mentioning

confidence: 99%

Final state interaction in D + → K − π + π + with Kπ I = 1/2 and 3/2 channels

Guimaraes

Lourenço

Paula

et al. 2014

J. High Energ. Phys.

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The final state interaction contribution to D + decays is computed for the K − π + π + channel within a light-front relativistic three-body model for the final state interaction. The rescattering process between the kaon and two pions in the decay channel is considered. The off-shell decay amplitude is a solution of a four-dimensional Bethe-Salpeter equation, which is decomposed in a Faddeev form. The projection onto the light-front of the coupled set of integral equations is performed via a quasi-potential approach. The S-wave Kπ interaction is introduced in the resonant isospin 1/2 and the non-resonant isospin 3/2 channels. The numerical solution of the light-front tridimensional inhomogeneous integral equations for the Faddeev components of the decay amplitude is performed perturbatively. The loop-expansion converges fast, and the three-loop contribution can be neglected in respect to the two-loop results for the practical application. The dependence on the model parameters in respect to the input amplitude at the partonic level is exploited and the phase found in the experimental analysis, is fitted with an appropriate choice of the real weights of the isospin components of the partonic amplitude. The data suggests a small mixture of total isospin 5/2 to the dominant 3/2 one. The modulus of the unsymmetrized decay amplitude, which presents a deep valley and a following increase for Kπ masses above 1.5 GeV, is fairly reproduced. This suggests the assignment of the quantum numbers 0 + to the isospin 1/2 K * (1630) resonance.

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Branching ratios and properties ofD-meson decays

Cited by 12 publications

References 9 publications

Amplitude analysis of theD+→KS0π+π
Ablikim¹,
Ачасов²,
Ai³
et al. 2014
Phys. Rev. D
18
0
4
0
View full text Add to dashboard Cite

Amplitude analysis of theD+→KS0π+π
Ablikim¹,
Ачасов²,
Ai³
et al. 2014
Phys. Rev. D
18
0
4
0
View full text Add to dashboard Cite

Glueballs, hybrids, multiquarks

Final state interaction in D + → K − π + π + with Kπ I = 1/2 and 3/2 channels

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Branching ratios and properties ofD-meson decays

Cited by 12 publications

References 9 publications

Amplitude analysis of theD+→KS0π+πAblikim1, Ачасов2, Ai3 et al. 2014Phys. Rev. D18040View full textAdd to dashboardCite

Amplitude analysis of theD+→KS0π+πAblikim1, Ачасов2, Ai3 et al. 2014Phys. Rev. D18040View full textAdd to dashboardCite

Glueballs, hybrids, multiquarks

Final state interaction in D + → K − π + π + with Kπ I = 1/2 and 3/2 channels

Contact Info

Product

Resources

About

Amplitude analysis of theD+→KS0π+π
Ablikim¹,
Ачасов²,
Ai³
et al. 2014
Phys. Rev. D
18
0
4
0
View full text Add to dashboard Cite

Amplitude analysis of theD+→KS0π+π
Ablikim¹,
Ачасов²,
Ai³
et al. 2014
Phys. Rev. D
18
0
4
0
View full text Add to dashboard Cite