The Sudakov form factor beyond the leading logarithmic approximation

1985 ◽  
Vol 29 (2) ◽  
pp. 273-290
Author(s):  
Theophil Ohrndorf
Keyword(s):  
Form Factor ◽  
Logarithmic Approximation ◽  
Sudakov Form Factor

scholarly journals THERMODYNAMIC GEOMETRIC STABILITY OF QUARKONIA STATES

2011 ◽  
Vol 26 (16) ◽  
pp. 2665-2724 ◽  
Author(s):  
STEFANO BELLUCCI ◽  
VINOD CHANDRA ◽  
BHUPENDRA NATH TIWARI
Keyword(s):  
Form Factor ◽  
Riemannian Manifold ◽  
Strong Coupling ◽  
Bound States ◽  
Mass Effect ◽  
Physical Parameters ◽  
Sudakov Form Factor ◽  
Strongly Coupled ◽  
General Statistical ◽  
Geometric Nature

We compute exact thermodynamic geometric properties of the non-Abelian quarkonium bound states from the consideration of one-loop strong coupling. From the general statistical principle, the intrinsic geometric nature of strongly coupled QCD is analyzed for the Colombic, rising and Regge rotating regimes. Without any approximation, we have obtained the nonlinear mass effect for the Bloch–Nordsieck rotating strongly coupled quarkonia. For a range of physical parameters, we show in each cases that there exists a well-defined, nondegenerate, curved, intrinsic Riemannian manifold. As the gluons become softer and softer, we find in the limit of the Bloch–Nordsieck resummation that the strong coupling obtained from the Sudakov form factor possesses exact local and global thermodynamic properties of the underlying mesons, kayons and Ds particles.

The Sudakov form factor in QCD

1989 ◽  
Vol 220 (4) ◽  
pp. 629-634 ◽  
Author(s):  
G.P. Korchemsky
Keyword(s):  
Form Factor ◽  
Sudakov Form Factor

scholarly journals Two-Loop Sudakov Form Factor in a Theory with a Mass Gap

2004 ◽  
Vol 93 (10) ◽  
Author(s):  
Bernd Feucht ◽  
Johann H. Kühn ◽  
Alexander A. Penin ◽  
Vladimir A. Smirnov
Keyword(s):  
Form Factor ◽  
Sudakov Form Factor ◽  
Mass Gap

scholarly journals LEADING LOGARITHMS IN FIELD THEORY

1999 ◽  
Vol 14 (11) ◽  
pp. 1769-1788 ◽  
Author(s):  
UGO AGLIETTI ◽  
GUIDO CORBÒ ◽  
LUCA TRENTADUE
Keyword(s):  
Field Theory ◽  
Form Factor ◽  
High Energy ◽  
Effective Theory ◽  
Sudakov Form Factor ◽  
Full Theory ◽  
High Energy Theory ◽  
Energy Theory ◽  
Effective Theories

We consider the Sudakov form factor in effective theories and we show that one can derive correctly the double logarithms of the original, high-energy, theory. We show that in effective theories it is possible to separate explicitly soft and hard dynamics, these being two regimes related to velocity conserving and to velocity changing operators respectively. A new effective theory is sketched which extracts the leading collinear singularities of the full theory amplitudes. Finally, we show how all leading logarithmic effects in field theory can be obtained by means of simple effective theories, where they correspond to a renormalization effect.

scholarly journals Two-loop Sudakov form factor in ABJM

2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
A. Brandhuber ◽  
Ö. Gürdoğan ◽  
D. Korres ◽  
R. Mooney ◽  
G. Travaglini
Keyword(s):  
Form Factor ◽  
Sudakov Form Factor
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