A lattice QCD study of the B → ππℓ(equation presented) transition
Affiliation
Department of Physics, University of ArizonaIssue Date
2023Metadata
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Sissa Medialab SrlCitation
Leskovec, Luka; Meinel, Stefan; Petschlies, Marcus; Negele, John; Paul, Srijit; Pochinsky, Andrew and Rendón, Gumaro. A lattice QCD study of the $B\to\pi\pi\ell\bar{\nu}$ transition. Proceedings of The 39th International Symposium on Lattice Field Theory. PoS(LATTICE2022). 2023. Volume 430, Pages 416, doi:10.22323/1.430.0416.Journal
Proceedings of ScienceRights
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Vub is the smallest and least known of all CKM matrix elements; the community currently determines its magnitude primarily through the exclusive process B → πℓ(equation presented). Here we present our progress toward a lattice QCD determination of the Vub matrix element from a novel transition - the B → ππℓ(equation presented) process, where the ππ system is in a P wave and scattering features the ρ(770) resonance as an enhancement. We perform our calculation on Nf = 2 + 1 isotropic clover fermions on a lattice of L ≈ 3.6 fm and a pion mass of ≈ 320 MeV; for the b-quark we use the anisotropic clover action. After a brief overview of the theoretical framework, we will discuss some preliminary results. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).Note
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1824-8039Version
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Except where otherwise noted, this item's license is described as © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).