Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Tiburzi, Brian C."'
Autor:
Adhikari, Prabal, Tiburzi, Brian C.
Large magnetic fields exist in magnetars and are produced in off-central heavy-ion collisions. For the latter, field strengths are estimated to be comparable to strong interaction scales. This fact has motivated many studies of QCD physics in large m
Externí odkaz:
http://arxiv.org/abs/2408.09472
Autor:
Adhikari, Prabal, Tiburzi, Brian C.
The pattern of chiral symmetry breaking is exploited to compute vector and axial-vector pion matrix elements in a uniform magnetic field. Our results are model independent, and thereby constitute low-energy theorems that must be obeyed by QCD in exte
Externí odkaz:
http://arxiv.org/abs/2406.00818
Autor:
DeSena, Daniel R., Tiburzi, Brian C.
Publikováno v:
Annals of Physics, Volume 464, 169644 (2024)
Low-energy scattering is well described by the effective-range expansion. In quantum mechanics, a tower of contact interactions can generate terms in this expansion after renormalization. Scattering parameters are also encoded in the self-adjoint ext
Externí odkaz:
http://arxiv.org/abs/2403.15290
Autor:
Adhikari, Prabal, Tiburzi, Brian C.
We address finite volume effects of lattice QCD calculations in background magnetic fields. Using chiral perturbation theory at next-to-leading order, volume effects are calculated for thermodynamic quantities: the chiral condensate, pressure anisotr
Externí odkaz:
http://arxiv.org/abs/2302.09179
Autor:
Kirscher, Johannes, Tiburzi, Brian C.
Energy levels are investigated for two charged particles possessing an attractive, momentum-independent, zero-range interaction in a uniform magnetic field. A transcendental equation governs the spectrum, which is characterized by a collective Landau
Externí odkaz:
http://arxiv.org/abs/2104.07565
Autor:
Deshmukh, Amol, Tiburzi, Brian C.
Publikováno v:
Phys. Rev. D 97, 014006 (2018)
Magnetic properties of octet baryons are investigated within the framework of chiral perturbation theory. Utilizing a power counting for large magnetic fields, the Landau levels of charged mesons are treated exactly giving rise to baryon energies tha
Externí odkaz:
http://arxiv.org/abs/1709.04997
Autor:
Parreno, Assumpta, Savage, Martin J., Tiburzi, Brian C., Wilhelm, Jonas, Chang, Emmanuel, Detmold, William, Orginos, Kostas
Magnetic moments of the octet baryons are computed using lattice QCD in background magnetic fields, including the first treatment of the magnetically coupled Sigma-Lambda system. Although the computations are performed for relatively large values of
Externí odkaz:
http://arxiv.org/abs/1709.01564
Autor:
Tiburzi, Brian C., Verma, Gaurav
Publikováno v:
Phys. Rev. D 96, 034020 (2017)
As with parton distributions, flexible phenomenological parameterizations of generalized parton distributions (GPDs) are essential for their extraction from data. The large number of constraints imposed on GPDs make simple Lorentz covariant models vi
Externí odkaz:
http://arxiv.org/abs/1706.05849
Autor:
Beane, Silas R., Chang, Emmanuel, Davoudi, Zohreh, Detmold, William, Orginos, Kostas, Parreño, Assumpta, Savage, Martin J., Tiburzi, Brian C., Shanahan, Phiala E., Wagman, Michael L., Winter, Frank
In this comment, we address a number of erroneous discussions and conclusions presented in a recent preprint by the HALQCD collaboration, arXiv:1703.07210. In particular, we demonstrate that lattice QCD determinations of bound states at quark masses
Externí odkaz:
http://arxiv.org/abs/1705.09239
Autor:
Tiburzi, Brian C., Wagman, Michael L., Winter, Frank, Chang, Emmanuel, Davoudi, Zohreh, Detmold, William, Orginos, Kostas, Savage, Martin J., Shanahan, Phiala E.
Publikováno v:
Phys. Rev. D 96, 054505 (2017)
A lattice quantum chromodynamics (LQCD) calculation of the nuclear matrix element relevant to the $nn\to ppee\overline{\nu}_e\overline{\nu}_e$ transition is described in detail, expanding on the results presented in Ref. [1]. This matrix element, whi
Externí odkaz:
http://arxiv.org/abs/1702.02929