Kπ scattering and the K*(892) resonance in 2+1 flavor QCD

Gumaro Rendon; Luka Leskovec; Stefan Meinel; John W. Negele; Srijit Paul; Marcus Petschlies; Andrew Pochinsky; Giorgio Silvi; Sergey Syritsyn

Kπ scattering and the K^*(892) resonance in 2+1 flavor QCD

Gumaro Rendon
, Luka Leskovec
, Stefan Meinel
, John W. Negele
, Srijit Paul
, Marcus Petschlies
, Andrew Pochinsky
, Giorgio Silvi
, Sergey Syritsyn

Physics and Astronomy

Stony Brook University

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

In this project, we will compute the form factors relevant for B → K^∗(→ Kπ)`⁺`⁻ decays. To map the finite-volume matrix elements computed on the lattice to the infinite-volume B → Kπ matrix elements, the Kπ scattering amplitude needs to be determined using Lüscher’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^∗Kπ coupling for two different ensembles with pion masses of 317(2) and 178(2) MeV.

Original language	English
Article number	073
Journal	Proceedings of Science
Volume	334
State	Published - 2018
Event	36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States Duration: Jul 22 2018 → Jul 28 2018

Cite this

@article{fc1fce3b5e7b43c7be6506f2ec295e60,

title = "Kπ scattering and the K*(892) resonance in 2+1 flavor QCD",

abstract = "In this project, we will compute the form factors relevant for B → K∗(→ Kπ)`+`− decays. To map the finite-volume matrix elements computed on the lattice to the infinite-volume B → Kπ matrix elements, the Kπ scattering amplitude needs to be determined using L{\"u}scher{\textquoteright}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∗Kπ coupling for two different ensembles with pion masses of 317(2) and 178(2) MeV.",

author = "Gumaro Rendon and Luka Leskovec and Stefan Meinel and Negele, \{John W.\} and Srijit Paul and Marcus Petschlies and Andrew Pochinsky and Giorgio Silvi and Sergey Syritsyn",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.; 36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 ; Conference date: 22-07-2018 Through 28-07-2018",

year = "2018",

language = "English",

volume = "334",

journal = "Proceedings of Science",

issn = "1824-8039",

}

TY - JOUR

T1 - Kπ scattering and the K*(892) resonance in 2+1 flavor QCD

AU - Rendon, Gumaro

AU - Leskovec, Luka

AU - Meinel, Stefan

AU - Negele, John W.

AU - Paul, Srijit

AU - Petschlies, Marcus

AU - Pochinsky, Andrew

AU - Silvi, Giorgio

AU - Syritsyn, Sergey

PY - 2018

Y1 - 2018

N2 - In this project, we will compute the form factors relevant for B → K∗(→ Kπ)`+`− decays. To map the finite-volume matrix elements computed on the lattice to the infinite-volume B → Kπ matrix elements, the Kπ scattering amplitude needs to be determined using Lüscher’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∗Kπ coupling for two different ensembles with pion masses of 317(2) and 178(2) MeV.

AB - In this project, we will compute the form factors relevant for B → K∗(→ Kπ)`+`− decays. To map the finite-volume matrix elements computed on the lattice to the infinite-volume B → Kπ matrix elements, the Kπ scattering amplitude needs to be determined using Lüscher’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∗Kπ coupling for two different ensembles with pion masses of 317(2) and 178(2) MeV.

UR - https://www.scopus.com/pages/publications/85069965097

M3 - Conference article

SN - 1824-8039

VL - 334

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 073

T2 - 36th Annual International Symposium on Lattice Field Theory, LATTICE 2018

Y2 - 22 July 2018 through 28 July 2018

ER -

Kπ scattering and the K^*(892) resonance in 2+1 flavor QCD

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