Angular momentum content of the $ρ(1450)$ from chiral lattice fermions Article Swipe

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Christian Rohrhofer , M. Pak , L. Ya. Glozman ·

YOU? · · 2016 · Open Access · · DOI: https://doi.org/10.48550/arxiv.1603.04665

We identify the chiral and angular momentum content of the leading quark-antiquark Fock component for the $ρ(770)$ and $ρ(1450)$ mesons using a two-flavor lattice simulation with dynamical Overlap Dirac fermions. We extract this information from the overlap factors of two interpolating fields with different chiral structure and from the unitary transformation between chiral and angular momentum basis. For the chiral content of the mesons we find that the $ρ(770)$ slightly favors the $(1,0)\oplus(0,1)$ chiral representation and the $ρ(1450)$ slightly favors the $(1/2,1/2)_b$ chiral representation. In the angular momentum basis the $ρ(770)$ is then a $^3S_1$ state, in accordance with the quark model. The $ρ(1450)$ is a $^3D_1$ state, showing that the quark model wrongly assumes the $ρ(1450)$ to be a radial excitation of the $ρ(770)$.

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/1603.04665
PDF: https://arxiv.org/pdf/1603.04665
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Cited By: 1
Related Works: 10
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DOI: https://doi.org/10.48550/arxiv.1603.04665

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Title: Angular momentum content of the $ρ(1450)$ from chiral lattice fermions

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Type: preprint

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Language: en

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Publication year: 2016

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Publication date: 2016-03-15

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Authors: Christian Rohrhofer, M. Pak, L. Ya. Glozman

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Landing page: https://arxiv.org/abs/1603.04665

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PDF URL: https://arxiv.org/pdf/1603.04665

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Concepts: Fermion, Lattice (music), Physics, Angular momentum, Content (measure theory), Theoretical physics, Mathematical physics, Quantum mechanics, Mathematics, Mathematical analysis, Acoustics

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Cited by: 1

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