This title appears in the Scientific Report :
2019
Please use the identifier:
http://hdl.handle.net/2128/21483 in citations.
$K \pi$ scattering and the $K^*(892)$ resonance in 2+1 flavor QCD
$K \pi$ scattering and the $K^*(892)$ resonance in 2+1 flavor QCD
In this project, we will compute the form factors relevant for $B \to K^*(\to K \pi)\ell^+\ell^-$ decays. To map the finite-volume matrix elements computed on the lattice to the infinite-volume $B \to K \pi$ matrix elements, the $K \pi$ scattering amplitude needs to be determined using L\'usche...
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Personal Name(s): | Rendon, Gumaro (Corresponding author) |
---|---|
Leskovec, Luka / Meinel, Stefan / Negele, John / Paul, Srijit / Petschlies, Marcus / Pochinsky, Andrew / Silvi, Giorgio / Syritsyn, Sergey | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Imprint: |
Trieste
SISSA
2019
|
Physical Description: |
7 p. |
Conference: | 36th Annual International Symposium on Lattice Field Theory, East Lansing, Michigan (USA), 2018-07-22 - 2018-07-28 |
Document Type: |
Contribution to a book Contribution to a conference proceedings |
Research Program: |
Doktorand ohne besondere Förderung Computational Science and Mathematical Methods |
Series Title: |
Proceedings of Science
LATTICE2018 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
In this project, we will compute the form factors relevant for $B \to K^*(\to K \pi)\ell^+\ell^-$ decays. To map the finite-volume matrix elements computed on the lattice to the infinite-volume $B \to K \pi$ matrix elements, the $K \pi$ scattering amplitude needs to be determined using L\'uscher's method. Here we present preliminary results from our calculations with $2+1$ flavors of dynamical clover fermions. We extract the $P$-wave scattering phase shifts and determine the $K^*$ resonance mass and the $K^* K \pi$ coupling for two different ensembles with pion masses of $317(2)$ and $178(2)$ MeV. |