Determination of the radius of convergence of the perturbation expansion using Padé approximants: Application to the Hückel limit of the Hubbard model for finite cyclic polyenes

1986 ◽  
Vol 33 (2) ◽  
pp. 1203-1205 ◽  
Author(s):  
M. Takahashi ◽  
J. Čížek ◽  
J. Paldus
Keyword(s):  
Hubbard Model ◽  
Perturbation Expansion ◽  
Padé Approximants ◽  
Radius Of Convergence ◽  
Pade Approximants ◽  
Cyclic Polyenes

scholarly journals Virtual corrections to gg → ZH in the high-energy and large-mt limits

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Joshua Davies ◽  
Go Mishima ◽  
Matthias Steinhauser
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Form Factors ◽  
Padé Approximants ◽  
High Energy ◽  
Radius Of Convergence ◽  
Leading Order ◽  
Partonic Cross Section ◽  
Pade Approximants ◽  
Energy Expansion

AbstractWe compute the next-to-leading order virtual corrections to the partonic cross-section of the processgg → ZH, in the high-energy and large-mtlimits. We use Padé approximants to increase the radius of convergence of the high-energy expansion in$$ {m}_t^2/s $$mt2/s,$$ {m}_t^2/t $$mt2/tand$$ {m}_t^2/u $$mt2/uand show that precise results can be obtained down to energies which are fairly close to the top quark pair threshold. We present results both for the form factors and the next-to-leading order virtual cross-section.

scholarly journals Padé approximants to B→πℓνℓ and Bs→Kℓνℓ and determination of |Vub|

2021 ◽  
Vol 104 (11) ◽  
Author(s):  
Sergi Gonzàlez-Solís ◽  
Pere Masjuan ◽  
Camilo Rojas
Keyword(s):  
Padé Approximants ◽  
Pade Approximants

scholarly journals Application of Padé approximants to determination of αs(MZ2) from hadronic event shape observables in e+e− annihilation

1997 ◽  
Vol 392 (1-2) ◽  
pp. 223-228 ◽  
Author(s):  
P.N. Burrows ◽  
T. Abraha ◽  
M. Samuel ◽  
E. Steinfelds ◽  
H. Masuda
Keyword(s):  
Padé Approximants ◽  
Event Shape ◽  
Hadronic Event ◽  
Pade Approximants

scholarly journals Precise determination of resonance pole parameters through Padé approximants

2014 ◽  
Vol 90 (9) ◽  
Author(s):  
Pere Masjuan ◽  
Jacobo Ruiz de Elvira ◽  
Juan José Sanz-Cillero
Keyword(s):  
Padé Approximants ◽  
Precise Determination ◽  
Resonance Pole ◽  
Pade Approximants
Sign in / Sign up

Export Citation Format

Share Document