Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Leontiou, Theodoros"'
Autor:
Alexandrou, Constantia, Finkenrath, Jacob, Leontiou, Theodoros, Meinel, Stefan, Pflaumer, Martin, Wagner, Marc
Publikováno v:
Phys. Rev. D 110, 054510 (2024)
We study the $\bar b \bar b u d$ tetraquark with quantum numbers $I(J^P) = 0(1^+)$ as well as the $\bar b \bar b u s$ tetraquark with quantum numbers $J^P = 1^+$ using lattice QCD. We improve on existing work by including both local and scattering in
Externí odkaz:
http://arxiv.org/abs/2404.03588
Autor:
Alexandrou, Constantia, Finkenrath, Jacob, Leontiou, Theodoros, Meinel, Stefan, Pflaumer, Martin, Wagner, Marc
Publikováno v:
Phys. Rev. Lett. 132, 151902 (2024)
We present the first determination of the energy dependence of the $B$-$\bar{D}$ and $B^*$-$\bar{D}$ isospin-0, $S$-wave scattering amplitudes both below and above the thresholds using lattice QCD, which allows us to investigate rigorously whether mi
Externí odkaz:
http://arxiv.org/abs/2312.02925
Autor:
Alexandrou, Constantia, Bacchio, Simone, Koutsou, Giannis, Leontiou, Theodoros, Paul, Srijit, Petschlies, Marcus, Pittler, Ferenc
Publikováno v:
Phys. Rev. D109 (2024) 3, 034509
We present an investigation of pion-nucleon elastic scattering in the $I\,(J^P) = \frac{3}{2}\,(\frac{3}{2}^+)$ channel using lattice QCD with degenerate up and down, strange and charm quarks with masses tuned to their physical values. We use an ense
Externí odkaz:
http://arxiv.org/abs/2307.12846
Autor:
Pflaumer, Martin, Alexandrou, Constantia, Finkenrath, Jacob, Leontiou, Theodoros, Meinel, Stefan, Wagner, Marc
We present our recent results on antiheavy-antiheavy-light-light tetraquark systems using lattice QCD. Our study of the $ \bar{b}\bar{b}us $ four-quark system with quantum numbers $ J^P=1^+ $ and the $ \bar{b}\bar{c}ud $ four-quark systems with $ I(J
Externí odkaz:
http://arxiv.org/abs/2211.00951
Autor:
Wagner, Marc, Alexandrou, Constantia, Finkenrath, Jacob, Leontiou, Theodoros, Meinel, Stefan, Pflaumer, Martin
We present first results of a recently started lattice QCD investigation of antiheavy-antiheavy-light-light tetraquark systems including scattering interpolating operators in correlation functions both at the source and at the sink. In particular, we
Externí odkaz:
http://arxiv.org/abs/2210.09281
Publikováno v:
Phys. Rev. D 101, 034502 (2020)
We investigate the $D_{s0}^\ast(2317)$ meson using lattice QCD and considering correlation functions of several $\bar{c} s$ two-quark and $\bar{c} s (\bar{u} u + \bar{d} d)$ four-quark interpolating fields. These interpolating fields generate differe
Externí odkaz:
http://arxiv.org/abs/1911.08435
Autor:
Alexandrou, Constantia, Berlin, Joshua, Brida, Mattia Dalla, Finkenrath, Jacob, Leontiou, Theodoros, Wagner, Marc
Publikováno v:
Phys. Rev. D 97, 034506 (2018)
We investigate the quark content of the scalar meson $a_0(980)$ using lattice QCD. To this end we consider correlation functions of six different two- and four-quark interpolating fields. We evaluate all diagrams, including diagrams, where quarks pro
Externí odkaz:
http://arxiv.org/abs/1711.09815
Autor:
Finkenrath, Jacob, Alexandrou, Constantia, Berlin, Joshua, Brida, Mattia Dalla, Leontiou, Theodoros, Wagner, Marc
We explore a method to extract energy eigenstates, called Athens Model Independent Analysis Scheme (AMIAS), which is an alternative to solving standard Generalized Eigenvalue Problems (GEVP). The method is based on statistically sampling the space of
Externí odkaz:
http://arxiv.org/abs/1701.07673
Autor:
Oikonomou, Christina, Haralambous, Haris, Leontiou, Theodoros, Tsagouri, Ioanna, Buresova, Dalia, Mošna, Zbyšek
Publikováno v:
In Advances in Space Research 1 January 2022 69(1):96-110
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