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B1 resonance in coupled πω, πφ scattering from lattice QCD

Autor: Woss, AJ, Thomas, CE, Dudek, JJ, Edwards, RG, Wilson, DJ

We present the first lattice QCD calculation of coupled $\pi\omega$ and $\pi\phi$ scattering, incorporating coupled $S$ and $D$-wave $\pi\omega$ in $J^P=1^+$. Finite-volume spectra in three volumes are determined via a variational analysis of matrice

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9d546401294601fb24b39f88ef3feec
https://www.repository.cam.ac.uk/handle/1810/293967

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Isoscalar ππ Scattering and the σ Meson Resonance from QCD

Autor: Briceño, RA, Dudek, JJ, Edwards, RG, Wilson, DJ

We present for the first time a determination of the energy dependence of the isoscalar ππ elastic scattering phase shift within a first-principles numerical lattice approach to QCD. Hadronic correlation functions are computed including all require

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fd69354db19196cdf0eaffdde9b87dc

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Issues and Opportunities in Exotic Hadrons* *Supported by U.S. Department of Energy (Cohen); the Institute of Modern Physics and Chinese Academy of Sciences under contract Y104160YQ0 and agreement No. 2015-BH-02 (Coito); the U.S. Department of Energy, for grant DE-AC05-06OR23177, under which Jefferson Science Associates, LLC, manages and operates Jefferson Laboratory and DE-SC0006765, Early Career award (Dudek); Fermilab, operated by the Fermi Research Alliance under contract number DEAC02-07CH11359 with the U.S. Department of Energy (Eichten); BMBF, under contract No. 06GI7121, and the DAAD under contract No. 56889822 and by the Helmholtz International Center for FAIR within the LOEWE program of the State of Hesse (Fischer); the German Research Foundation DFG under contract number Collaborative Research Centre CRC-1044 (Gradl); the Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq, Grant No. 305894/2009-9 and Fundação de Amparo à Pesquisa do Estado de São Paulo - FAPESP, Grant No. 2013/01

Publikováno v: Chinese Physics C, vol 40, iss 4

The last few years have been witness to a proliferation of new results concerning heavy exotic hadrons. Experimentally, many new signals have been discovered that could be pointing towards the existence of tetraquarks, pentaquarks, and other exotic c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______325::b2e4e0df6dc7373191e968e42f88417c
https://escholarship.org/uc/item/23k8s8sv

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ππ →πγ∗ amplitude and the resonant ρ →πγ∗ transition from lattice QCD

Autor: Briceño, RA, Dudek, JJ, Edwards, RG, Shultz, CJ, Thomas, CE, Wilson, DJ

We present a determination of the $P$-wave $\pi\pi\to\pi\gamma^\star$ transition amplitude from lattice quantum chromodynamics. Matrix elements of the vector current in a finite-volume are extracted from three-point correlation functions, and from th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34cf3ac46ca48e58e75fc7ab2a6a905a
https://www.repository.cam.ac.uk/handle/1810/256359

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An a0 resonance in strongly coupled πη, K K scattering from lattice QCD a0 RESONANCE in STRONGLY COUPLED ⋯ DUDEK, EDWARDS, and WILSON

Autor: Dudek, JJ, Edwards, RG, Wilson, DJ

We present the first calculation of coupled-channel meson-meson scattering in the isospin $=1$, $G$-parity negative sector, with channels $\pi \eta$, $K\overline{K}$ and $\pi \eta'$, in a first-principles approach to QCD. From the discrete spectrum o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::037786a3a085989c37d7def0417a6541
https://www.repository.cam.ac.uk/handle/1810/256341

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Coupled ππ, K K ¯ scattering in P -wave and the ρ resonance from lattice QCD

Autor: Wilson, DJ, Briceño, RA, Dudek, JJ, Edwards, RG, Thomas, CE

We determine elastic and coupled-channel amplitudes for isospin-1 meson-meson scattering in $P$-wave, by calculating correlation functions using lattice QCD with light quark masses such that $m_\pi = 236$ MeV in a cubic volume of $\sim (4 \,\mathrm{f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______109::9647e3ad8e42054040978852763bf17f
https://www.repository.cam.ac.uk/handle/1810/252510

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