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

Research output: Contribution to journal › Article › peer-review

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 (US)
Journal	Unknown Journal
State	Published - Nov 26 2018

ASJC Scopus subject areas

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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",

year = "2018",

month = nov,

day = "26",

language = "English (US)",

journal = "Nuclear Physics A",

issn = "0375-9474",

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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 - 2018/11/26

Y1 - 2018/11/26

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.

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M3 - Article

AN - SCOPUS:85095333476

JO - Nuclear Physics A

JF - Nuclear Physics A

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