First measurement of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Γ</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo>(</mml:mo><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mi>*</mml:mi><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mo>)</mml:mo></mml:math>and precision measurement of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>m</mml:mi></mml:mrow><mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>D</mm

Anastassov, A.; Eckhart, E. A.; Gan, K. K.; Gwon, C.; Hart, T.; Honscheid, K.; Hufnagel, D.; Kagan, H.; Kass, R.; Pedlar, T. K.; Thayer, J. B.; Toerne, E. von; Zoeller, M. M.; Richichi, S. J.; Severini, H.; Skubic, P.; Undrus, A.; Savinov, V.; Chen, S.; Hinson, J. W.; Lee, J.; Miller, D. H.; Shibata, E. I.; Shipsey, I. P. J.; Pavlunin, V.; Cronin-Hennessy, D.; Lyon, A. L.; Park, W.; Thorndike, E. H.; Coan, T. E.; Gao, Y. S.; Maravin, Y.; Narsky, I.; Stroynowski, R.; Ye, J.; Włodek, T.; Artuso, M.; Benslama, K.; Boulahouache, C.; Bukin, K.; Dambasuren, E.; Majumder, G.; Mountain, R.; Skwarnicki, T.; Stone, S.; Wang, J. C.; Wolf, A.; Köpp, S.; Kostin, M.; Mahmood, A. H.; Csorna, S. E.; Dankó, I.; Jain, V.; McLean, K. W.; Xu, Z.; Godang, R.; Bonvicini, G.; Cinabro, D.; Dubrovin, M.; McGee, Steven; Bornheim, A.; Lipeles, E.; Pappas, S. P.; Shapiro, A.; Sun, W.; Weinstein, A. J.; Jaffe, D. E.; Mahapatra, R.; Masek, G.; Paar, H. P.; Eppich, A.; Hill, T. S.; Morrison, R. J.; Nelson, H. N.; Briere, R. A.; Chen, G. P.; Ferguson, T.; Vogel, H.; Alexander, J.; Bebek, C.; Berger, B. E.; Berkelman, K.; Blanc, F.; Boisvert, V.; Cassel, D. G.; Drell, P. S.; Duboscq, J. E.; Ecklund, K. M.; Ehrlich, R.; Gaidarev, P.; Gibbons, L.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hsu, L.; Jones, C. D.; Kandaswamy, J.; Kreinick, D. L.

doi:10.1103/physrevd.65.032003

Cited by 165 publications

(97 citation statements)

References 16 publications

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“…In the charm sector, g has been determined from the D * meson decays in Refs. [40,41] yielding g = 0.59 ± 0.01 ± 0.07, which we approximate by g ≃ 0.6. In the strict heavy quark limit, the latest lattice QCD results suggest the value g = 0.449 ± 0.047 ± 0.019, see Refs.…”

Section: Discussionmentioning

confidence: 61%

“…The finite range contribution is the well-known one pion exchange (OPE) potential, where g ≃ 0.6 is the axial coupling between the heavy meson and the pion (we have particularized its value for the charmed meson case, see Refs. [40,41] for a determination), f π ≃ 132 MeV the pion decay constant, and q the momentum exchanged by the heavy meson and antimeson. The sign η and the polarization operators a and b depend on whether the initial/final states is PP, PP * , P * P or P * P * .…”

Section: A Overview Of the Eft Formalismmentioning

confidence: 99%

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Heavy quark spin symmetry partners of theX(3872)

2012

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We explore the consequences of heavy quark spin symmetry for the charmed meson-antimeson system in a contact-range (or pionless) effective field theory. As a trivial consequence, we theorize the existence of a heavy quark spin symmetry partner of the X(3872), with J P C = 2 ++ , which we call X(4012) in reference to its predicted mass. If we additionally assume that the X(3915) is a 0 ++ heavy spin symmetry partner of the X(3872), we end up predicting a total of six D ( * )D( * ) molecular states. We also discuss the error induced by higher order effects such as finite heavy quark mass corrections, pion exchanges and coupled channels, allowing us to estimate the expected theoretical uncertainties in the position of these new states.

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Section: Discussionmentioning

confidence: 61%

Section: A Overview Of the Eft Formalismmentioning

confidence: 99%

Heavy quark spin symmetry partners of theX(3872)

2012

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“…Values are reported in natural units and the use of charge conjugate reactions is implied throughout this paper. The only prior measurement of the width is Γ = (96 ± 4 ± 22) keV by the CLEO collaboration, where the uncertainties are statistical and systematic, respectively [8]. In the present analysis, we use a data sample that is approximately 50 times larger.…”

mentioning

confidence: 99%

“…We study the [8]. In the present analysis, we use a data sample that is approximately 50 times larger.…”

mentioning

confidence: 99%

Measurement of theD(2010)+Meson Width and theD(2010
Lees¹,
Poireau²,
Tisserand³
et al. 2013
Phys. Rev. Lett.
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31
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11
0
1
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We measure the mass difference, ∆m0, between the D * (2010) + and the D 0 and the natural line width, Γ, of the transition D * (2010) + → D 0 π + . The data were recorded with the BABAR detector at center-of-mass energies at and near the Υ (4S) resonance, and correspond to an integrated luminosity of approximately 477 fb −1 . The D 0 is reconstructed in the decay modesFor the decay mode D 0 → K − π + we obtain Γ = (83.4 ± 1.7 ± 1.5) keV and ∆m0 = (145 425.6 ± 0.6 ± 1.8) keV, where the quoted errors are statistical and systematic, respectively. For the D 0 → K − π + π − π + mode we obtain Γ = (83.2 ± 1.5 ± 2.6) keV and ∆m0 = (145 426.6 ± 0.5 ± 2.0) keV. The combined measurements yield Γ = (83.3 ± 1.2 ± 1.4) keV and ∆m0 = (145 425.9 ± 0.4 ± 1.7) keV; the width is a factor of approximately 12 times more precise than the previous value, while the mass difference is a factor of approximately 6 times more precise. PACS numbers: 13.20.Fc, 13.25Ft, 14.40.Lb, 12.38.Gc, 12.38.Qk, 12.39.Ki, 12.39.Pn The line width of the D * (2010) + (D * + ) provides a window into a nonperturbative regime of strong interaction physics where the charm quark is the heavier meson constituent [1][2][3]. The line width provides an experimental test of D meson spectroscopic models, and is related to the strong coupling of the D * Dπ system, g D * Dπ . In the heavy-quark limit, which is not necessarily a good approximation for the charm quark [4], this coupling can be related to the universal coupling of heavy mesons to a pion,ĝ. Since the decay B * → Bπ is kinematically forbidden, it is not possible to measure the coupling g B * Bπ directly. However, the D and B systems can be related throughĝ, allowing the calculation of g B * Bπ , which is needed for a model-independent extraction of |V ub | [5,6] and which forms one of the larger theoretical uncertainties for the determination of |V ub | [7].We study theto extract values of the D * + width Γ and the difference between the D * + and D 0 masses ∆m 0 . Values are reported in natural units and the use of charge conjugate reactions is implied throughout this paper. The only prior measurement of the width is Γ = (96 ± 4 ± 22) keV by the CLEO collaboration, where the uncertainties are statistical and systematic, respectively [8]. In the present analysis, we use a data sample that is approximately 50 times larger. This allows us to apply restrictive selection criteria to reduce background and to investigate sources of systematic uncertainty with high precision.To extract Γ, we fit the distribution of the mass differ-4 ence between the reconstructed D * + and the D 0 masses, ∆m. The signal component is described with a P-wave relativistic Breit-Wigner (RBW) function convolved with a resolution function based on a Geant4 Monte Carlo (MC) simulation of the detector response [9].The full width at half maximum (FWHM) of the RBW line shape (≈ 100 keV) is much less than the FWHM of the almost Gaussian resolution function which describes more than 99% of the signal (≈ 300 keV). Therefore, near the peak, ...

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“…Additionally, in refs. [50,51], two strong couplings, g V P π 0 and g V P π + , are defined as: They can be rewritten using the isospin relationship g V P π + = − √ 2g V P π + ≡ g V P π and relating g V →P π to a universal strong coupling between the heavy vector and pseudoscalar mesons to the pion,ĝ P , withĝ…”

Section: Jhep04(2014)177mentioning

confidence: 99%

Strong and radiative decays of heavy mesons in a covariant model

Cheung

Hwang²

2014

J. High Energ. Phys.

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In this paper, we investigate symmetry breaking effects in strong and radiative decays of heavy mesons. We study 1/m Q corrections within the heavy quark effective theory. These effects are studied in a covariant model for heavy mesons. The numerical results are consistent with the experimental data and some other theoretical calculations. These provide a vote of confidence for the validity of this covariant model.

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First measurement ofΓ(D*+)and precision measurement ofmD

Cited by 165 publications

References 16 publications

Heavy quark spin symmetry partners of theX(3872)

Heavy quark spin symmetry partners of theX(3872)

Measurement of theD(2010)+Meson Width and theD(2010
Lees¹,
Poireau²,
Tisserand³
et al. 2013
Phys. Rev. Lett.
Self Cite
31
1
11
0
1
View full text Add to dashboard Cite

Strong and radiative decays of heavy mesons in a covariant model

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First measurement ofΓ(D*+)and precision measurement ofmD

Cited by 165 publications

References 16 publications

Heavy quark spin symmetry partners of theX(3872)

Heavy quark spin symmetry partners of theX(3872)

Measurement of theD*(2010)+Meson Width and theD*(2010Lees1, Poireau2, Tisserand3 et al. 2013Phys. Rev. Lett.Self Cite3111101View full textAdd to dashboardCite

Strong and radiative decays of heavy mesons in a covariant model

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Product

Resources

About

Measurement of theD(2010)+Meson Width and theD(2010
Lees¹,
Poireau²,
Tisserand³
et al. 2013
Phys. Rev. Lett.
Self Cite
31
1
11
0
1
View full text Add to dashboard Cite