Quark masses using twisted mass fermion gauge ensembles
Autor: | Guido Martinelli, F. Manigrasso, Giancarlo Rossi, F. Pittler, Petros Dimopoulos, Georg Bergner, Simone Bacchio, Constantia Alexandrou, Karl Jansen, Jacob Finkenrath, E. Fiorenza, Francesco Sanfilippo, Cecilia Tarantino, Carsten Urbach, Martha Constantinou, Kyriakos Hadjiyiannakou, Silvano Simula, Vittorio Lubicz, Bartosz Kostrzewa, A. Todaro, E. Papadiofantous, Giannis Koutsou, M. Mangin-Brinet, Urs Wenger, M. Garofalo, M. Di Carlo, Roberto Frezzotti |
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Přispěvatelé: | Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Extended Twisted Mass, Alexandrou, C., Bacchio, S., Bergner, G., Constantinou, M., Di Carlo, M., Dimopoulos, P., Finkenrath, J., Fiorenza, E., Frezzotti, R., Garofalo, M., Hadjiyiannakou, K., Kostrzewa, B., Koutsou, G., Jansen, K., Lubicz, V., Mangin-Brinet, M., Manigrasso, F., Martinelli, G., Papadiofantous, E., Pittler, F., Rossi, G. C., Sanfilippo, F., Simula, S., Tarantino, C., Todaro, A., Urbach, C., Wenger, U. |
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Quark
Particle physics Meson mass ratio [quark] 530 Physics High Energy Physics::Lattice Nuclear Theory FOS: Physical sciences GeV mass [pi] meson 7. Clean energy 01 natural sciences pi: mass Charm quark Pion High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Lattice 0103 physical sciences mass [quark] ddc:530 Continuum (set theory) continuum limit fermion: mass: twist vertex function 010306 general physics Nuclear Experiment lattice Physics Settore FIS/02 010308 nuclear & particles physics [PHYS.HLAT]Physics [physics]/High Energy Physics - Lattice [hep-lat] mass: renormalization High Energy Physics - Lattice (hep-lat) High Energy Physics::Phenomenology renormalization [mass] lattice field theory Order (ring theory) Lattice QCD Baryon quark: mass baryon High Energy Physics - Phenomenology mass: twist [fermion] quark: mass ratio High Energy Physics::Experiment charm statistical |
Zdroj: | Phys. Rev. D Physical review / D 104(7), 074515 (2021). doi:10.1103/PhysRevD.104.074515 Alexandrou, C, Bacchio, S, Bergner, G, Constantinou, M, Di Carlo, M, Dimopoulos, P, Finkenrath, J, Fiorenza, E, Frezzotti, R, Garofalo, M, Hadjiyiannakou, K, Kostrzewa, B, Koutsou, G, Jansen, K, Lubicz, V, Mangin-Brinet, M, Manigrasso, F, Martinelli, G, Papadiofantous, E, Pittler, F, Rossi, G C, Sanfilippo, F, Simula, S, Tarantino, C, Todaro, A, Urbach, C & Wenger, U 2021, ' Quark masses using twisted-mass fermion gauge ensembles ', Physical Review D, vol. 104, no. 7, 074515 . https://doi.org/10.1103/PhysRevD.104.074515 Physical Review Alexandrou, C.; Bacchio, S.; Bergner, G.; Constantinou, M.; Di Carlo, M.; Dimopoulos, P.; Finkenrath, J.; Fiorenza, E.; Frezzotti, R.; Garofalo, M.; Hadjiyiannakou, K.; Kostrzewa, B.; Koutsou, G.; Jansen, K.; Lubicz, V.; Mangin-Brinet, M.; Manigrasso, F.; Martinelli, G.; Papadiofantous, E.; Pittler, F.; ... (2021). Quark masses using twisted-mass fermion gauge ensembles. Physical review. D-particles, fields, gravitation, and cosmology, 104(7), 074515. American Physical Society 10.1103/PhysRevD.104.074515 Phys.Rev.D Phys.Rev.D, 2021, 104 (7), pp.074515. ⟨10.1103/PhysRevD.104.074515⟩ |
Popis: | We present a calculation of the up, down, strange and charm quark masses performed within the lattice QCD framework. We use the twisted mass fermion action and carry out simulations that include in the sea two light mass-degenerate quarks, as well as the strange and charm quarks. In the analysis we use gauge ensembles simulated at three values of the lattice spacing and with light quarks that correspond to pion masses in the range from 350 MeV to the physical value, while the strange and charm quark masses are tuned approximately to their physical values. We use several quantities to set the scale in order to check for finite lattice spacing effects and in the continuum limit we get compatible results. The quark mass renormalization is carried out non-perturbatively using the RI'-MOM method converted into the $\overline{\rm MS}$ scheme. For the determination of the quark masses we use physical observables from both the meson and the baryon sectors, obtaining $m_{ud} = 3.636(66)(^{+60}_{-57})$~MeV and $m_s = 98.7(2.4)(^{+4.0}_{-3.2})$~MeV in the $\overline{\rm MS}(2\,{\rm GeV})$ scheme and $m_c = 1036(17)(^{+15}_{-8})$~MeV in the $\overline{\rm MS}(3\,{\rm GeV})$ scheme, where the first errors are statistical and the second ones are combinations of systematic errors. For the quark mass ratios we get $m_s / m_{ud} = 27.17(32)(^{+56}_{-38})$ and $m_c / m_s = 11.48(12)(^{+25}_{-19})$. 37 pages, 23 figures, 24 tables. One reference added |
Databáze: | OpenAIRE |
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