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He, Q.; Muramatsu, H.; Park, C. S.; Park, W.; Thorndike, E. H.; Coan, T. E.; Gao, Y. S.; Liu, F.; Artuso, M.; Boulahouache, C.; Blusk, S.; Butt, J.; Dambasuren, E.; Dorjkhaidav, O.; Li, J.; Menaa, N.; Mountain, R.; Nandakumar, R.; Randrianarivony, K.; Redjimi, R.; Sia, R.; Skwarnicki, T.; Stone, S.; Wang, J. C.; Zhang, K.; Csorna, S. E.; Bonvicini, G.; Cinabro, D.; Dubrovin, M.; Briere, R. A.; Chen, G. P.; Chen, J.; Ferguson, T.; Tatishvili, G.; Vogel, H.; Watkins, M. E.; Rosner, Jonathan L.; Adam, N.; Alexander, J.; Berkelman, K.; Cassel, D. G.; Credé, V.; Duboscq, J. E.; Ecklünd, K. M.; Ehrlich, R.; Fields, L.; Gibbons, L.; Gittelman, B.; Gray, R.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hertz, D.; Hsu, L.; Jones, C. D.; Kandaswamy, J.; Kreinick, D. L.; Кузнецов, В. Е.; Mahlke-Krüger, H.; Meyer, T. O.; Onyisi, P. U. E.; Patterson, J. R.; Peterson, D.; Phillips, E. A.; Pivarski, J.; Riley, D.; Rýd, A.; Sadoff, A. J.; Schwarthoff, H.; Shi, X.; Shepherd, M. R.; Stroiney, S.; Sun, W.; Urner, D.; Weaver, K. M.; Wilksen, T.; Weinberger, M.; Athar, S. B.; Avery, P.; Breva-Newell, L.; Patel, R.; Potlia, V.; Stoeck, H.; Yelton, J.; Rubin, P.; Cawlfield, C.; Eisenstein, B. I.; Gollin, G. D.; Karliner, I.; Kim, D.; Lowrey, N.; Naik, P.; Sedlack, C.; Selen, M.; Williams, James S.; Wiss, J.; Edwards, K. W.; Besson, D.; Pedlar, T. K.; Cronin-Hennessy, D.; Gao, K. Y.; Gong, D. T.; Hietala, J.; Kubota, Y.; Klein, T.; Lang, B. W.; Li, S. Z.; Poling, R.; Scott, A. W.; Smith, A. J. S.; Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Zweber, P.; Ernst, J.; Mahmood, A. H.; Severini, H.; Asner, D. M.; Dytman, S.; Love, W. A.; Mehrabyan, S.; Muêller, J.; Savinov, V.; Li, Z.; López, A.; Méndez, H.; Ramirez, J.; Huang, G. S.; Miller, D. H.; Pavlunin, V.; Sanghi, B.; Shipsey, I. P. J.; Adams, G. S.; Chasse, M.; Cravey, M.; Cummings, J. P.; Danko, I.; Napolitano, J.

doi:10.1103/physrevlett.96.199903

Cited by 29 publications

(22 citation statements)

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“…Both BES and CLEO-c Collaborations measured the cross section of e + e − → DD at the center-of-mass energy E c.m. = 3773 MeV several years ago [4,5], and their results are in good agreement with each other.…”

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confidence: 77%

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Study of the branching ratio ofψ(3770)→DD¯ine+e−
Li¹,
Qin²,
Yang³
2010
Phys. Rev. D
18
3
11
0
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Based on the data of BES and Belle, the production of DD in the e + e − → DD scattering process is studied in this paper. We analyze the continuum and resonant contributions in the energy region from 3.7 to 4.4 GeV. In the χ 2 fit to data, we obtain the resonance parameters of ψ(3770), the branching ratio of ψ(3770) → DD decay by confronting the data to the theoretical formula where both the contributions of the resonances, continuum and interference effects are included. We obtain the branching ratio of ψ(3770) → DD decay is 97.2% ± 8.9%, as well as the branching ratio of ψ(4040), ψ(4160) → DD decays. PACS numbers: 13.25.Gv, 13.66.Bc, 14.40.Gx Physics of e + e − annihilation at the energy region of 3 − 5 GeV is interesting. It attracts the focus of both experimental and theoretical studies. The physics at this energy region involves several well-established vector resonances, J/ψ, ψ(2S), ψ(3770), ψ(4040), ψ(4160), ··· , which are bound states of quark and antiquark pair cc. Studying the production and decays of these resonances can deepen our knowledge about dynamics of interactions between quarks. The resonance ψ(3770) has a mass just slightly above the threshold of DD pair production. Its decays evade the suppression of the Okubo-Zweig-Iizuka (OZI) rule [1]. This is consistent with the fact that the width of ψ(3770) is about 2 orders larger than those of J/ψ and ψ(2S) [2]. The J/ψ and ψ(2S) can only decay into non-DD final states, which is suppressed according to the OZI rule. It is believed that ψ(3770) decays dominantly into DD pair. All the well-established non-DD decay modes of ψ(3770) only show up with the branching ratios at the order of 10 −3 − 10 −4 . The measurement of many other decay modes of ψ(3770) only gives upper bounds, which shows that decay rates of these non-DD decay modes should be smaller than 10 −3 or 10 −4 [2,3]. The sum of all these well-measured decay rates is at most at the order of several percent.In the e + e − collider the properties of the resonance ψ(3770) are measured through the scattering process e + e − → ψ(3770) → f , where f can be any final states like DD or any other hadrons. The branching ratio of ψ(3770) → DD and ψ(3770) →non-DD can be derived from the measured scattering cross section of e + e − → DD and e + e − → hadrons. Both BES and CLEO-c Collaborations measured the cross section of e + e − → DD at the center-of-mass energy E c.m. = 3773 MeV several years ago [4, 5], and their results are in good agreement with each other.The CLEO-c Collaboration also measured the cross section of e + e − → ψ(3770) → hadrons at E c.m. = 3773 MeV [6]. The difference between this and the cross section of e + e − → ψ(3770) → DD is found to be (−0.01 ± 0.08 +0.41 −0.30 ) nb, which indicates that the decay rate of ψ(3770) to non-DD is tiny. However, the measurement of the BES Collaboration gives that the branching ratio of ψ(3770) → DD is (85.5 ± 1.7 ± 5.8)% or (83.6 ± 7.3 ± 4.2)%, and the decay branching ratio of ψ(3770) to non-DD is (14.5 ± 1.7 ± 5.8)% or (16.4 ± 7.3 ± 4.2)% [7,8],...

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confidence: 77%

“…[14], one of us analyzed the data of the e + e − → DD cross section measured by the BES and CLEO-c Collaborations at E c.m. = 3773 MeV [4,5]. The formula describing the e + e − → D 0D0 or D + D − cross section is derived…”

mentioning

confidence: 99%

Study of the branching ratio ofψ(3770)→DD¯ine+e−
Li¹,
Qin²,
Yang³
2010
Phys. Rev. D
18
3
11
0
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“…As shown in Refs. [24,39], the IML mechanism can be a natural explanation for the sizeable ψ(3770) non-DD decay branching ratios observed in experiment [40][41][42][43][44]. As a manifestation of the open charm threshold effects, the IML mechanism may also play an important role in other decay modes, such as J/ψ(ψ ′ ) → V S, V T , and P P etc.…”

Section: Discussionmentioning

confidence: 99%

Open charm effects in the explanation of the long-standing “ρπpuzzle”

Wang

Zhao

2012

Phys. Rev. D

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A detailed analysis of the open charm effects on the decays of J/ψ(ψ ′ ) → V P is presented, where V stands for light vector meson and P for light pseudoscalar meson. These are the channels that the so-called "12% rule" of perturbative QCD (pQCD) is obviously violated. Nevertheless, they are also the channels that violate the pQCD helicity selection rule (HSR) at leading order. In this work, we put constraints on the electromagnetic (EM) contribution, short-distance contribution from the cc annihilation at the wavefunction origin, and long-distance contribution from the open charm threshold effects on these two decays. We show that interferences among these amplitudes, in particular, the destructive interferences between the short-distance and long-distance strong amplitudes play a key role to evade the HSR and cause the significant deviations from the pQCD expected "12% rule".

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“…We select D 0 candidates using the standard CLEO Dtagging criteria, which impose very loose requirements on the beam-energy-constrained D 0 mass, as described in Ref. [21].…”

mentioning

confidence: 99%

Precision measurement of the mass of theD0meson and the binding energy of theX(3872)
Tomaradze
¹
,
Dobbs
²
,
Xiao
³

et al. 2015
Phys. Rev. D*
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0
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A precision measurement of the mass difference between the D 0 and D * 0 mesons has been made using 316 pb −1 of e + e − annihilation data taken at √ s = 4170 MeV using the CLEO-c detector.We obtain ∆M ≡ M (D * 0 ) − M (D 0 ) = 142.007 ± 0.015(stat) ± 0.014(syst) MeV, as the average for the two decays, D 0 → K − π + and D 0 → K − π + π − π + . The new measurement of ∆M leads to M (D * 0 ) = 2006.850 ± 0.049 MeV, and the currently most precise measurement of the binding energy of the "exotic" meson X(3872) if interpreted as a D 0 D * 0 hadronic molecule, E b (X(3872)) ≡ M (D 0 D * 0 ) − M (X(3872)) = 3 ± 192 keV.

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Erratum: Measurement of Absolute Hadronic Branching Fractions ofDMesons ande+e−→DD¯Cross Sections at

Cited by 29 publications

References 1 publication

Study of the branching ratio ofψ(3770)→DD¯ine+e−
Li¹,
Qin²,
Yang³
2010
Phys. Rev. D
18
3
11
0
View full text Add to dashboard Cite

Study of the branching ratio ofψ(3770)→DD¯ine+e−
Li¹,
Qin²,
Yang³
2010
Phys. Rev. D
18
3
11
0
View full text Add to dashboard Cite

Open charm effects in the explanation of the long-standing “ρπpuzzle”

Precision measurement of the mass of theD0meson and the binding energy of theX(3872)
Tomaradze
¹
,
Dobbs
²
,
Xiao
³

et al. 2015
Phys. Rev. D*
Self Cite
13
0
8
0
View full text Add to dashboard Cite

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Erratum: Measurement of Absolute Hadronic Branching Fractions ofDMesons ande+e−→DD¯Cross Sections at

Cited by 29 publications

References 1 publication

Study of the branching ratio ofψ(3770)→DD¯ine+e−Li1, Qin2, Yang3 2010Phys. Rev. D183110View full textAdd to dashboardCite

Study of the branching ratio ofψ(3770)→DD¯ine+e−Li1, Qin2, Yang3 2010Phys. Rev. D183110View full textAdd to dashboardCite

Open charm effects in the explanation of the long-standing “ρπpuzzle”

Precision measurement of the mass of theD*0meson and the binding energy of theX(3872)Tomaradze1, Dobbs2, Xiao3 et al. 2015Phys. Rev. DSelf Cite13080View full textAdd to dashboardCite

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Study of the branching ratio ofψ(3770)→DD¯ine+e−
Li¹,
Qin²,
Yang³
2010
Phys. Rev. D
18
3
11
0
View full text Add to dashboard Cite

Study of the branching ratio ofψ(3770)→DD¯ine+e−
Li¹,
Qin²,
Yang³
2010
Phys. Rev. D
18
3
11
0
View full text Add to dashboard Cite

Precision measurement of the mass of theD0meson and the binding energy of theX(3872)
Tomaradze
¹
,
Dobbs
²
,
Xiao
³

et al. 2015
Phys. Rev. D*
Self Cite
13
0
8
0
View full text Add to dashboard Cite