Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Bruschini, R."'
Autor:
Bruschini, R.
Publikováno v:
Phys.Rev.D 110, 074033 (2024)
Double-heavy hadrons can decay into pairs of heavy hadrons through transitions from confining Born-Oppenheimer potentials to heavy-hadron-pair potentials with the same Born-Oppenheimer quantum numbers. The states of the double-heavy hadron are constr
Externí odkaz:
http://arxiv.org/abs/2408.05150
Autor:
Braaten, E., Bruschini, R.
Publikováno v:
Phys.Rev.D 109, 094051 (2024)
Hidden-heavy hadrons can decay into pairs of heavy hadrons through transitions from confining Born-Oppenheimer potentials to hadron-pair potentials with the same Born-Oppenheimer quantum numbers. The transitions are also constrained by conservation o
Externí odkaz:
http://arxiv.org/abs/2403.12868
Autor:
Bruschini, R.
Publikováno v:
Phys.Rev.D 109, L031501 (2024)
We examine the couplings of quarkonium hybrids to heavy-light meson pairs in the Born-Oppenheimer approximation for QCD. The lowest hybrid multiplets consist of bound states of the $\Pi_u$ and $\Sigma_u^-$ potentials. We find that the $\Sigma_u^-$ po
Externí odkaz:
http://arxiv.org/abs/2306.17120
Autor:
Bruschini, R.
Publikováno v:
J. High Energ. Phys. 2023, 219 (2023)
Heavy-quark spin symmetry is explicitly broken by the mass splitting between a heavy-light pseudoscalar meson and its vector partner. This fact plays a pivotal role in the physics of states whose mass lies close to the threshold of an open-flavor mes
Externí odkaz:
http://arxiv.org/abs/2303.17533
Autor:
Bruschini, R., González, P.
Publikováno v:
JHEP 02, 216 (2023)
A thorough study of the $J^{PC}=1^{++}$ elastic $D^{0}\bar{D}^{\ast0}$ and $D^{+}D^{\ast-}$ scattering, where the form of the meson-meson interaction is inferred from lattice QCD calculations of string breaking, is carried out for center-of-mass ener
Externí odkaz:
http://arxiv.org/abs/2207.02740
Autor:
Bruschini, R., González, P.
We show, from a diabatic analysis of Lattice results for string breaking, that mixing of $Q\bar{Q}$ with open-flavor meson-meson configurations may be expressed through a mixing potential which is order $1 / m_{Q}$. A relation between the minimum str
Externí odkaz:
http://arxiv.org/abs/2111.07653
Autor:
Bruschini, R., González, P.
Publikováno v:
Phys. Rev. D 104, 074025 (2021)
We apply the diabatic framework, a QCD-based formalism for the unified study of quarkoniumlike systems in terms of heavy quark-antiquark and open-flavor meson-meson components, to the description of coupled-channel meson-meson scattering. For this pu
Externí odkaz:
http://arxiv.org/abs/2107.05459
Autor:
Bruschini, R., González, P.
Publikováno v:
Phys. Rev. D 103, 114016 (2021)
We apply the diabatic approach, specially suited for a QCD based study of conventional (quark-antiquark) and unconventional (quark-antiquark + meson-meson) meson states, to the description of hidden-bottom mesons. A spectral analysis of the $I=0$, $J
Externí odkaz:
http://arxiv.org/abs/2105.04401
Autor:
Bruschini, R., González, P.
Publikováno v:
Phys. Rev. D 103, 074009 (2021)
From a diabatic bound state approach to $J^{PC}=1^{--}$ and $(0,1,2)^{++}$ charmoniumlike resonances below $4.1$ GeV, formulated in terms of ${c\overline{c}}$ and closed meson-meson channels, we calculate mass shifts and widths due to open meson-meso
Externí odkaz:
http://arxiv.org/abs/2101.04636
Autor:
Bruschini, R., González, P.
Publikováno v:
Phys. Rev. D 102, 074002 (2020)
We apply the diabatic formalism, first introduced in molecular physics, to the description of heavy-quark mesons. In this formalism the dynamics is completely described by a diabatic potential matrix whose elements can be derived from unquenched latt
Externí odkaz:
http://arxiv.org/abs/2007.07693