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Edwards, K. W.; Janicek, R.; Patel, P. M.; Sadoff, A. J.; Ammar, R.; Baringer, P.; Bean, A.; Besson, D.; Davis, R.; Kotov, S.; Kravchenko, I.; Kwak, N.; Zhao, X.; Anderson, S.; Frolov, V. V.; Kubota, Y.; Lee, S. J.; Mahapatra, R.; O’Neill, J. J.; Poling, R.; Riehle, T.; Smith, A.; Ahmed, S.; Alam, M. S.; Athar, S. B.; Jian, L.; Liu, Ling; Mahmood, A. H.; Saleem, M.; Timm, S.; Wappler, F. R.; Anastassov, A.; Duboscq, J. E.; Gan, K. K.; Gwon, C.; Hart, T.; Honscheid, K.; Kagan, H.; Kass, R.; Lorenc, J.; Schwarthoff, H.; Toerne, E. von; Zoeller, M. M.; Richichi, S. J.; Severini, H.; Skubic, P.; Undrus, A.; Bishai, M.; Chen, S.; Fast, J. E.; Hinson, J. W.; Lee, J.; Menon, N.; Miller, D. H.; Shibata, E. I.; Shipsey, I. P. J.; Kwon, Y. J.; Lyon, A. L.; Thorndike, E. H.; Jessop, C. P.; Lingel, K.; Marsiske, H.; Перл, М.; Savinov, V.; Ugolini, D.; Zhou, Xiang; Coan, T. E.; Fadeyev, V.; Korolkov, I.; Maravin, Y.; Narsky, I.; Shelkov, V.; Stroynowski, R.; Ye, J.; Włodek, T.; Artuso, M.; Ayad, R.; Dambasuren, E.; Köpp, S.; Majumder, G.; Moneti, G. C.; Mountain, R.; Schuh, S.; Skwarnicki, T.; Stone, S.; Titov, A.; Viehhauser, G. H. A.; Wang, J. C.; Wolf, A.; Wu, J.; Csorna, S. E.; McLean, K. W.; Márka, S.; Xu, Z.; Godang, R.; Kinoshita, K.; Lai, I. C.; Pomianowski, P.; Schrenk, S.; Bonvicini, G.; Cinabro, D.; Greene, R.; Perera, L. P.; Zhou, G. J.; Chan, S.; Eigen, G.; Lipeles, E.; Śchmidtler, M.; Shapiro, A.; Sun, W.; Urheim, J.; Weinstein, A. J.; Würthwein, F.; Jaffe, D. E.; Masek, G.; Paar, H. P.; Potter, E. M.; Prell, S.; Sharma, V.; Asner, D. M.; Eppich, A.; Gronberg, J.; Hill, T. S.; Lange, D. J.; Morrison, R. J.; Nelson, T. K.; Richman, J.; Briere, R. A.; Behrens, E. H.; Ford, W. T.; Gritsan, A. V.; Krieg, H.; Roy, J.; Smith, J. G.; Alexander, J. P.; Baker, R. C.; Bebek, C.; Berger, B. E.; Berkelman, K.; Blanc, F.; Boisvert, V.; Cassel, D. G.; Dickson, M.; Drell, P. S.; Ecklund, K. M.; Ehrlich, R.; Poland, A. D.; Gaidarev, P.; Galik, R. S.; Gibbons, L. K.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hopman, P. I.; Jones, C. D.; Kreinick, D. L.; Lee, T.; Liu, Y.; Meyer, T. O.; Mistry, N. B.; Ng, C. R.; Nordberg, E.; Patterson, J. R.; Peterson, D.; Riley, D.; Thayer, J. G.; Thies, P. G.; Valant-Spaight, B.; Warburton, A.; Avery, P.; Lohner, M.; Prescott, C.; Rubiera, A. I.; Yelton, J.; Zheng, J. P.; Brandenburg, G.; Ershov, A.; Gao, Y. S.; Kim, D. Y.J.; Wilson, Richard; Browder, T. E.; Li, Y.; Rodriguez, J. L.; Yamamoto, H.; Bergfeld, T.; Eisenstein, B. I.; Ernst, J.; Gladding, G. E.; Gollin, G. D.; Hans, R. M.; Johnson, E.; Karliner, I.; Marsh, M. A.; Palmer, M.; Plager, C.; Sedlack, C.; Selen, M.; Thaler, J. J.; Williams, James S.

doi:10.1103/physrevd.61.072003

Cited by 73 publications

(27 citation statements)

References 28 publications

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“…Expression for the integral I (3) ρ has a rather cumbersome form and contains a combination of terms with different powers of the form factor (up to the third power). It is constructed according to the Feynman rules coming from the Lagrangian (5). For calculation of the relevant quark loop integrals, we use the method described in Ref.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

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Production ofωπ0pairs in electron-positron annihilation

Arbuzov

Kuraev²,

Волков³

2011

Phys. Rev. C

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The process of electron-positron annihilation into a pair of π 0 and ω mesons is considered in the framework of the SU(2)×SU(2) Nambu-Jona-Lasinio model. Contributions of intermediate photons, ρ(770) and ρ (1450) vector mesons are taken into account. It is shown that the bulk of the cross section at energies below 2 GeV is provided by the process with intermediate ρ (1450) state. The contribution due to single photon and ρ(770) exchange is in agreement with the vector meson dominance model. Numerical results are compared with experimental data.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

“…It is important to note that the studies in Refs. [4,5,10] concluded that the contribution of the ρ (1700) to the process is small. Following the results, this paper will neglect the contribution of the amplitude with intermediate ρ (1700) meson.…”

Section: Introductionmentioning

confidence: 97%

Production ofωπ0pairs in electron-positron annihilation

Arbuzov

Kuraev²,

Волков³

2011

Phys. Rev. C

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“…= 773.6(9) = 773.6(9) = 773.6(9) = 773.6(9) (15) 1376 (6) 1313 (15) 1311 (5) (12) 1718 (4) 1660 (9) 1658 (1) ρ → ωπ into the ρ decay width. In spirit of [48], we write the energy-dependent width as…”

Section: Dispersive Representationmentioning

confidence: 99%

A dispersive analysis of the pion vector form factor and $$\tau ^{-}\rightarrow K^{-}K_{S}\nu _{\tau }$$ decay

Gonzàlez-Solís

Roig

2019

Eur. Phys. J. C

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We explore the potential of a combined analysis of the decays τ − → π − π 0 ν τ and τ − → K − K S ν τ in the determination of the ρ(1450) and ρ(1700) resonance properties in the frame of resonance Chiral Theory supplemented by dispersion relations. On the one hand, we take advantage of the very precise data on the modulus squared of the pion vector form factor |F π V | 2 obtained by Belle to carry out a very dedicated analysis of the region where these resonances come up into play. Our study provides an improved treatment of the systematic theoretical errors and, as a most important result, we conclude that they dominate over the fit uncertainties in the determination of the ρ(1450) and ρ(1700) pole parameters and tend to be larger than in other determinations quoted in the literature where these errors were ignored or underestimated. The results of our analysis are summarized in numerical tables for the form factor modulus and phase, including both statistical and systematic errors, that can be found as ancillary material of this paper. As a byproduct, we also determine the low-energy observables of the pion vector form factor and the ρ-pole position. On the other hand, we benefit from the recent experimental data for the transition τ − → K − K S ν τ released by BaBar to perform a first analysis of its decay spectrum and discuss the role of these resonances in this decay. We point out that higherquality data on the K − K S decay channel will allow compete with the |F π V | 2 ones and improve the determination of the ρ(1450) and ρ(1700) resonance parameters as a result of a combined analysis. We hope our study to be of interest for present and future experimental analysis of these decays.

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“…So, strictly speaking the discontinuity of f ωπ (t) is not available for t > t + . On the other hand, the modulus of f ωπ (t) can be extracted from experimental data on e + e − → ωπ 0 process, measured in [19][20][21][22][23][24][25]. The connection between the cross section and the modulus [10,27] is, in our convention,…”

Section: Input In the Consistency Testmentioning

confidence: 99%

“…It is important to note that the dispersive analyses performed so far did not include experimental data on the form factor available in the scattering region, above the ωπ threshold. Measurements of the modulus from the reaction e + e − → ωπ 0 are reported in [19][20][21][22][23][24][25] (a set of such data is shown in Fig. 1, where we show for completeness also the modulus measured in the decay region t < t − , t − = (m ω − m π ) 2 ).…”

Section: Introductionmentioning

confidence: 99%

Testing the consistency of theωπtransition form factor with unitarity and analyticity

Caprini

2015

Phys. Rev. D

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We perform a dispersive analysis of the ωπ electromagnetic transition form factor, using as input the discontinuity provided by unitarity below the ωπ threshold and including for the first time experimental data on the modulus measured from e + e − → ωπ 0 at higher energies. The input leads to stringent parameterization-free constraints on the modulus of the form factor below the ωπ threshold, which are in disagreement with some experimental values measured from ω → π 0 γ * decay. We discuss the dependence on the input parameters in the unitarity relation, using for illustration an N/D formalism for the P partial wave of the scattering process ωπ → ππ, improved by a simple prescription which simulates the rescattering in the crossed channels. Our results confirm the existence of a conflict between experimental data and theoretical calculations of the ωπ form factor in the region around 0.6 GeV and bring further arguments in support of renewed experimental efforts to measure more precisely the ω → π 0 γ * decay.

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Resonant structure ofτ→3ππ0ντ

Cited by 73 publications

References 28 publications

Production ofωπ0pairs in electron-positron annihilation

Production ofωπ0pairs in electron-positron annihilation

A dispersive analysis of the pion vector form factor and $$\tau ^{-}\rightarrow K^{-}K_{S}\nu _{\tau }$$ decay

Testing the consistency of theωπtransition form factor with unitarity and analyticity

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