<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-06-07T15:53:22Z</responseDate><request verb="GetRecord" identifier="oai:docta.ucm.es:20.500.14352/50811" metadataPrefix="marc">https://docta.ucm.es/rest/oai/request</request><GetRecord><record><header><identifier>oai:docta.ucm.es:20.500.14352/50811</identifier><datestamp>2023-08-25T21:20:00Z</datestamp><setSpec>com_20.500.14352_14</setSpec><setSpec>col_20.500.14352_15</setSpec></header><metadata><record xmlns="http://www.loc.gov/MARC21/slim" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd">
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      <subfield code="a">dc</subfield>
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      <subfield code="a">Llanes Estrada, Felipe José</subfield>
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      <subfield code="a">General, I. J.</subfield>
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      <subfield code="a">Cotanch, S. R.</subfield>
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      <subfield code="c">2007-07</subfield>
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      <subfield code="a">An effective Coulomb gauge Hamiltonian, H-eff, is used to calculate the light ( u (u) over barg), strange ( s (s) over barg) and charmed (c (c) over barg) hybrid meson spectra. For the same two parameter H-eff providing glueball masses consistent with lattice results and a good description of the observed u, d, s and c quark mesons, a large-scale variational treatment predicts that the lightest hybrid has J(PC) = 0(++) and mass 2.1 GeV. The lightest exotic 1(-+) state is just above 2.2 GeV, near the upper limit of lattice and flux tube predictions. These theoretical formulations all indicate that the observed 1(-+) pi(1)(1600) and, more clearly, pi(1)(1400) are not hybrid states. The Coulomb gauge approach further predicts that in the strange and charmed sectors, respectively, the ground state hybrids have 1(+-) with masses 2.1 and 3.8 GeV, while the. rst exotic 1( +) states are at 2.4 and 4.0 GeV. Finally, using our hybrid wavefunctions and the Franck-Condon principle, a novel experimental signature is presented to assist heavy hybrid meson searches.</subfield>
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      <subfield code="a">1434-6044</subfield>
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      <subfield code="a">10.1140/epjc/s10052-007-0298-3</subfield>
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      <subfield code="a">https://hdl.handle.net/20.500.14352/50811</subfield>
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      <subfield code="a">http://dx.doi.org/10.1140/epjc/s10052-007-0298-3</subfield>
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      <subfield code="a">http://arxiv.org/abs/hep-ph/0609115</subfield>
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      <subfield code="a">http://link.springer.com</subfield>
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   <datafield ind2="0" ind1="0" tag="245">
      <subfield code="a">Coulomb gauge approach to (qqg)over-bar hybrid mesons</subfield>
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