Erratum:<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>2</mml:mn><mml:mi>S</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math>Radiative Transitions to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>η</mml:mi><mml:mi>c</mml:mi></mml:ms

Mitchell, R. E.; Shepherd, M. R.; Besson, D.; Pedlar, T. K.; Cronin-Hennessy, D.; Gao, K. Y.; Hietala, J.; Kubota, Yoshihiro; Klein, T.; Läng, B; Poling, R.; Scott, A. W.; Zweber, P.; Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Libby, J.; Powell, A.; Wilkinson, G.; Ecklünd, K. M.; Love, W. A.; Savinov, Vassili; López, Alejandro Vilar; Méndez, H.; Ramirez, J. E.; Ge, Junyan; Miller, D. H.; Shipsey, I. P. J.; Xin, B.; Adams, G. S.; Anderson, M.; Cummings, J. P.; Danko, I.; Hu, Dandan; Moziak, B.; Napolitano, J.; He, Qingming; Insler, J.; Muramatsu, H.; Park, C. S.; Thorndike, E. H.; Yang, F.; Artuso, M.; Blusk, S.; Khalil, S.; Li, J.; Mountain, R.; Nisar, S.; Randrianarivony, K.; Sultana, N.; Skwarnicki, T.; Stone, S.; Wang, J. C.; Zhang, L. M.; Bonvicini, G.; Cinabro, D.; Dubrovin, M.; Lincoln, A.; Naik, P.; Rademacker, J. H.; Asner, D. M.; Edwards, K. W.; Reed, J.; Briere, R. A.; Ferguson, T.; Tatishvili, G.; Vogel, H.; Watkins, M. E.; Rosner, Jonathan L.; Alexander, J.; Cassel, D. G.; Duboscq, J. E.; Ehrlich, R.; Fields, L.; Galik, R. S.; Gibbons, L. K.; Gray, R.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hertz, D.; Hunt, J. M.; Kandaswamy, J.; Kreinick, D. L.; Кузнецов, В. Е.; Ledoux, James; Mahlke-Krüger, H.; Mohapatra, D.; Onyisi, P. U. E.; Patterson, J. R.; Peterson, D.; Riley, D.; Rýd, A.; Sadoff, A. J.; Shi, X.; Stroiney, S.; Sun, W.; Wilksen, T.; Athar, S. B.; Patel, R.; Yelton, J.; Rubin, P. D.; Eisenstein, B. I.; Karliner, I.; Mehrabyan, S.; Lowrey, Norm; Selen, M.; White, E. J.; Wiss, J.

doi:10.1103/physrevlett.106.159903

Cited by 25 publications

(17 citation statements)

References 5 publications

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“…The η c elastic form factor is normalized to F ηc→ηc + (0) = 1 by elastic vector-current conservation. Our determination of the ψ → η c transition form factor V ηc→ψ (0) = 1.80, describing the ψ → η c γ radiative transition, is in reasonable agreement with both the data [22] and the lattice-QCD result [23], in spite of some tension between these two findings: V exp (0) = 1.68 ± 0.14 vs. V lat (0) = 1.92 ± 0.03 ± 0.02. N.B.…”

Section: The ηCηcj/ψ and ηCj/ψj/ψ Strong Couplingssupporting

confidence: 87%

Strong three-meson couplings ofJ/ψandηc

Lucha¹,

Melikhov²,

Sazdjian³

et al. 2016

Phys. Rev. D

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We discuss the strong couplings gP P V and gV V P for vector (V ) and pseudoscalar (P ) mesons, at least one of which is a charmonium state J/ψ or ηc. The strong couplings are obtained as residues at the poles of suitable form factors, calculated in a broad range of momentum transfers using a dispersion formulation of the relativistic constituent quark model. The form factors obtained in this approach satisfy all constraints known for these quantities in the heavy-quark limit. Our results suggest sizably higher values for the strong meson couplings than those reported in the literature from QCD sum rules.

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Section: The ηCηcj/ψ and ηCj/ψj/ψ Strong Couplingssupporting

confidence: 87%

Strong three-meson couplings ofJ/ψandηc

Lucha¹,

Melikhov²,

Sazdjian³

et al. 2016

Phys. Rev. D

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show abstract

“…At BESIII, using 106 million ψ(2S) decays, the line-shape of the ηc(1S) was found to be clearly distorted (see the right panel of Figure 6). Taking into account the expected E 7 energy-dependence of the radiated photon (58), and including interference with the non-ηc(1S) background, the mass was found to be 2984.3 ± 0.6 ± 0.6 MeV/c 2 (59), more in line with other measurements, and resolving the previous discrepancy. The lower statistics of the previous measurements apparently hid these important effects.…”

Section: Masses Of Charmonium Statessupporting

confidence: 85%

Physics Accomplishments and Future Prospects of the BES Experiments at the Beijing Electron--Positron Collider

Briere

Harris

Mitchell

2016

Annu. Rev. Nucl. Part. Sci.

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The cornerstone of the Chinese experimental particle physics program consists of a series of experiments performed in the tau-charm energy region. China began building e + e − colliders at the Institute for High Energy Physics in Beijing more than three decades ago. Beijing Electron Spectrometer, BES, is the common root name for the particle physics detectors operated at these machines. The development of the BES program is summarized and highlights of the physics results across several topical areas are presented.

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“…Theoretical studies have highlighted the presence of and E 7 dependence in the matrix elements for these transition, that can indeed distort the η c (1S ) lineshape. The disagreement disappears if an additional dumping factor E 2 ) is added to the η c (1S ) lineshape [47] (points o) and p) ). Possibly the same effect is also present in bottomonium, but to confirm this additional non-M1 based measurements of the η b (1S ) mass are required.…”

Section: New Hadronic Transitionsmentioning

confidence: 98%

“…B → η b X (blue points): f) BaBar [53], g) Belle [54]. M1 transitions J/ψ → γη c (1S ) and ψ → γη c (1S ) (black dots): h) i) BES [55], l) BES [56], m) CLEO [47]. E1 transition h c (1P) → γη c (1S ) (green dot): n) [57].…”

Section: New Hadronic Transitionsmentioning

confidence: 99%

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Bottomonium physics above BB¯ thresholds with the Belle experiment

Tamponi

2016

AIP Conference Proceedings

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Abstract. The structure of heavy mesons located above the thresholds for the open flavor production has been largely discussed in the recent years. Their conventional description as pure BB bound state has been called into question by the study of the hadronic transitions to the lower states, and the observation of charged exotic states has highlighted the importance of the light quark degrees of freedom in the description of both charmonia and bottomonia. We will report the most recent experimental measurements performed by the Belle collaboration in the Y(4S), Y(5S) and Y(6S) regions, including the measurement of the ratio, the search for neutral states near the B 0B0 threshold, the first observation of the transition Υ(4S ) → ηh b (1P) and the study of the η transitions at the Υ(5S ) energy. The contribution to the study of the structure of these states coming from the measurement of hadronic transitions will be discussed.

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Erratum:J/ψandψ(2S)Radiative Transitions toηc

Cited by 25 publications

References 5 publications

Strong three-meson couplings ofJ/ψandηc

Strong three-meson couplings ofJ/ψandηc

Physics Accomplishments and Future Prospects of the BES Experiments at the Beijing Electron--Positron Collider

Bottomonium physics above BB¯ thresholds with the Belle experiment

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