Masses and decay constants of $B_c^{(*)}$ mesons with $N_f=2+1+1$ twisted mass fermions
| العنوان: | Masses and decay constants of $B_c^{(*)}$ mesons with $N_f=2+1+1$ twisted mass fermions |
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| المؤلفون: | Damir Becirevic, Giorgio Salerno, Silvano Simula, Aurora Melis, L. Riggio |
| المساهمون: | Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), ETM, Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | PoS 36th International Symposium on Lattice Field Theory 36th International Symposium on Lattice Field Theory, Jul 2018, East Lansing, United States. pp.273, ⟨10.22323/1.334.0273⟩ |
| بيانات النشر: | arXiv, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Quark, Particle physics, Meson, High Energy Physics::Lattice, B/c: decay constant, Nuclear Theory, FOS: Physical sciences, meson, 7. Clean energy, bottom: mass, High Energy Physics - Lattice, Pion, Lattice constant, quark: flavor: 4, Ratio method, Lattice (order), quantum chromodynamics, continuum limit, quark: mass dependence, numerical calculations, lattice, Physics, B/c: mass, [PHYS.HLAT]Physics [physics]/High Energy Physics - Lattice [hep-lat], High Energy Physics::Phenomenology, High Energy Physics - Lattice (hep-lat), Fermion, vector meson, heavy quark: mass, charm: mass, Pseudoscalar, quark: mass: twist, B/c*: mass, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], B/c*: decay constant, Condensed Matter::Strongly Correlated Electrons, High Energy Physics::Experiment, pseudoscalar meson |
| الوصف: | We present a preliminary lattice determination of the masses and decay constants of the pseudoscalar and vector mesons $B_c$ and $B_c^*$. Our analysis is based on the gauge configurations produced by the European Twisted Mass Collaboration with $N_f = 2 + 1 + 1$ flavors of dynamical quarks. We simulated at three different values of the lattice spacing and with pion masses as small as 210 MeV. Heavy-quark masses are simulated directly on the lattice up to $\sim 3$ times the physical charm mass. The physical b-quark mass is reached using the ETMC ratio method. Our preliminary results are: $M_{B_c} = 6341\,(60)$ MeV, $f_{B_c} = 396\,(12)$ MeV, $M_{B_c^*} / M_{B_c} = 1.0037\,(39)$ and $f_{B_c^*} / f_{B_c} = 0.987\,(7)$. Comment: 7 pages, 3 figures, 1 table; contribution to the proceedings of the XXXVI Int'l Workshop on Lattice Field Theory (LATTICE2018), July 22-28, 2018, East Lansing, Michigan State University (Michigan, USA) |
| DOI: | 10.48550/arxiv.1812.00771 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb824b5b1dd60fded1c88cc5f45ceba9 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....cb824b5b1dd60fded1c88cc5f45ceba9 |
| قاعدة البيانات: | OpenAIRE |
| DOI: | 10.48550/arxiv.1812.00771 |
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