Search results for "MBD"
showing 10 items of 646 documents
Measurement of the Λb0 decay form factor
2004
The form factor of Λb0 baryons is estimated using 3.46×106 hadronic Z decays collected by the DELPHI experiment between 1992 and 1995. Charmed Λc+ baryons fully reconstructed in the pK-π+, pK S0, and Λπ+π+π - modes, are associated to a lepton with opposite charge in order to select Λb0→Λc+l-ν̄l decays. From a combined likelihood and event rate fit to the distribution of the Isgur-Wise variable w, and using the Heavy Quark Effective Theory (HQET), the slope of the b-baryon form factor is measured to be ρ̂2=2.03±0.46(stat) -1.00+0.72(syst). The exclusive semileptonic branching fraction Br(Λb0→Λc+l-ν̄l) can be derived from ρ̂2 and is found to be (5.0-0.8+1.1(stat)-1.2+1.6(syst))%. Limits on ot…
Note on the slope parameter of the baryonic Λb→Λc Isgur–Wise function
2005
Abstract Using the framework of the Heavy Quark Effective Theory we have re-analyzed the Isgur–Wise function describing semileptonic Λ b → Λ c decays in the QCD sum rule approach. The slope parameter of the Isgur–Wise function is found to be ρ 2 = 1.35 ± 0.13 , which is consistent with an experimental measurement and a lattice calculation. To O ( 1 / m b , 1 / m c ) of the heavy quark expansion the integrated Λ b decay width is used to extract the CKM matrix element V c b for which we obtain a value of | V c b | = 0.041 ± 0.004 ± 0.001 in excellent agreement with the value of | V c b | determined from semileptonic B → D ∗ decays.
An Extension of Weyl’s Equidistribution Theorem to Generalized Polynomials and Applications
2020
Author's accepted manuscript. This is a pre-copyedited, author-produced version of an article accepted for publication in International Mathematics Research Notices following peer review. The version of record Bergelson, V., Knutson, I. J. H. & Son, Y. (2020). An Extension of Weyl’s Equidistribution Theorem to Generalized Polynomials and Applications. International Mathematics Research Notices, 2021(19), 14965-15018 is available online at: https://academic.oup.com/imrn/article/2021/19/14965/5775499 and https://doi.org/10.1093/imrn/rnaa035. Generalized polynomials are mappings obtained from the conventional polynomials by the use of the operations of addition and multiplication and taking th…
Numerical approach for signal delay in general distributed networks
2003
The authors consider a general network with telegraph equations modelling distributed elements and having, additionally, nonlinear capacitors. A global asymptotic exponential stability of the solution is given. A simple computable upper bound of the delay time is given. Numerical examples illustrate the usefulness of the results. >
CCDC 868769: Experimental Crystal Structure Determination
2013
Related Article: Vincent Diemer, Anaïs Berthelot, Jérôme Bayardon, Sylvain Jugé, Frédéric R. Leroux, and Françoise Colobert|2012|J.Org.Chem.|77|6117|doi:10.1021/jo3009098
CCDC 198063: Experimental Crystal Structure Determination
2004
Related Article: A.Lehtonen, R.Sillanpaa|2003|Polyhedron|22|2755|doi:10.1016/S0277-5387(03)00373-5
CCDC 2109331: Experimental Crystal Structure Determination
2021
Related Article: Marco Thomas Passia, Jan-Hendrik Sch��bel, Niklas Julian Lentelink, Khai-Nghi Truong, Kari Rissanen, Carsten Bolm|2021|Org.Biomol.Chem.|19|9470|doi:10.1039/D1OB01912K
CCDC 1031785: Experimental Crystal Structure Determination
2014
Related Article: Pablo Barrio, Elsa Rodríguez, Kodai Saito, Santos Fustero, Takahiko Akiyama|2015|Chem.Commun.|51|5246|doi:10.1039/C4CC08598A
CCDC 2068109: Experimental Crystal Structure Determination
2021
Related Article: Shilin Yu, Jas S. Ward, Khai-Nghi Truong, Kari Rissanen|2021|Angew.Chem.,Int.Ed.|60|20739|doi:10.1002/anie.202108126
CCDC 1830059: Experimental Crystal Structure Determination
2019
Related Article: Jian Yang, Yoann Rousselin, Léo Bucher, Nicolas Desbois, Frédéric Bolze, Hai-Jun Xu, Claude P. Gros|2018|ChemPlusChem|83|838|doi:10.1002/cplu.201800361