Zobrazeno 1 - 10
of 179
pro vyhledávání: '"Swanson, Eric S."'
Autor:
Dawid, Sebastian M., Smith, Wyatt A., Rodas, Arkaitz, Perry, Robert J., Fernández-Ramírez, César, Swanson, Eric S., Szczepaniak, Adam P.
The Gribov--Zwanziger scenario attributes the phenomenon of confinement to the instantaneous interaction term in the QCD Hamiltonian in the Coulomb gauge. For a static quark-antiquark pair, it leads to a potential energy that increases linearly with
Externí odkaz:
http://arxiv.org/abs/2408.09007
Autor:
Hüsken, Nils, Lebed, Richard F., Mitchell, Ryan E., Swanson, Eric S., Wang, Ya-Qian, Yuan, Chang-Zheng
A recent report of $e^+ e^- \to D\bar D$ events by the BESIII Collaboration suggests the presence of a structure $R$ at 3900~MeV\@. We argue that this structure, called $G(3900)$ in the past, is not in fact due to a new $c\bar c$ resonance, but rathe
Externí odkaz:
http://arxiv.org/abs/2404.03896
Autor:
Brambilla, Nora, Chen, Hua-Xing, Esposito, Angelo, Ferretti, Jacopo, Francis, Anthony, Guo, Feng-Kun, Hanhart, Christoph, Hosaka, Atsushi, Jaffe, Robert L., Karliner, Marek, Lebed, Richard, Lewis, Randy, Maiani, Luciano, Mathur, Nilmani, Meißner, Ulf-G., Pilloni, Alessandro, Polosa, Antonio Davide, Prelovsek, Sasa, Richard, Jean-Marc, Riquer, Veronica, Rosina, Mitja, Rosner, Jonathan L., Santopinto, Elena, Swanson, Eric S., Szczepaniak, Adam P., Takeuchi, Sachiko, Takizawa, Makoto, Wilczek, Frank, Yamaguchi, Yasuhiro, Zou, Bing-Song
In recent years there has been a rapidly growing body of experimental evidence for existence of exotic, multiquark hadrons, i.e. mesons which contain additional quarks, beyond the usual quark-antiquark pair and baryons which consist of more than thre
Externí odkaz:
http://arxiv.org/abs/2203.16583
Autor:
Briscoe, William J., Doring, Michael, Haberzettl, Helmut, Manley, D. Mark, Naruki, Megumi, Smith, Greg, Strakovsky, Igor, Swanson, Eric S.
Over the past two decades, meson photo- and electroproduction data of unprecedented quality and quantity have been measured at electromagnetic facilities worldwide. By contrast, the meson-beam data for the same hadronic final states are mostly outdat
Externí odkaz:
http://arxiv.org/abs/2108.07591
Autor:
Farina, Christian, Tecocoatzi, Hugo Garcia, Giachino, Alessandro, Santopinto, Elena, Swanson, Eric S.
Publikováno v:
Phys. Rev. D 102, 014023 (2020)
A constituent gluon model that is informed by recent lattice field theory is developed. The model is then used to compute hybrid strong decay widths, that can be useful for the GlueX collaboration at Jefferson Lab and the PANDA collaboration at FAIR.
Externí odkaz:
http://arxiv.org/abs/2005.10850
Akademický článek
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Akademický článek
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Autor:
Lebed, Richard F., Swanson, Eric S.
It is argued that the heavy-quark limit of QCD requires a certain combination of hyperfine mass splittings in heavy-quark hybrid-meson multiplets to be unusually small. This observation will assist in the exploration of the heavy-quark hybrid spectru
Externí odkaz:
http://arxiv.org/abs/1708.02679
Autor:
Lebed, Richard F., Swanson, Eric S.
Publikováno v:
Phys. Rev. D 96, 056015 (2017)
The mass splitting between the quarkonium spin-singlet state $h$ ($J^{PC} = 1^{+-}$) and the spin average of the quarkonium spin-triplet states $\chi$ ($J^{PC} = 0^{++}, 1^{++}, 2^{++}$) is seen to be astonishingly small, not only in the charmonium a
Externí odkaz:
http://arxiv.org/abs/1705.03140
Publikováno v:
Progress in Particle and Nuclear Physics 93, 143 (2017)
This review presents an overview of the remarkable progress in the field of heavy-quark exotic hadrons over the past 15 years. It seeks to be pedagogical rather than exhaustive, summarizing both the progress and specific results of experimental disco
Externí odkaz:
http://arxiv.org/abs/1610.04528