Asymptotic behavior of the Sudakov form factor in quantum chromodynamics

1981 ◽  
Vol 24 (12) ◽  
pp. 3281-3304 ◽  
Author(s):  
Ashoke Sen
Keyword(s):  
Asymptotic Behavior ◽  
Form Factor ◽  
Quantum Chromodynamics ◽  
Sudakov Form Factor

Neural models of reaching

1997 ◽  
Vol 20 (2) ◽  
pp. 310-310
Author(s):  
Stephen Grossberg
Keyword(s):  
Asymptotic Behavior ◽  
Form Factor ◽  
Linear Systems ◽  
Reaching Movements ◽  
Neural Models ◽  
System Parameters ◽  
Trade Offs ◽  
Neuromuscular Systems ◽  
Biological Interpretation ◽  
Speed Accuracy

Plamondon & Alimi (P&A) have unified much data on speed/accuracy trade-offs during reaching movements using a delta-lognormal form factor that describes “the asymptotic behavior of a large number of dependent linear systems,” notably neuromuscular systems. Their approach raises questions about whether a large number of systems is needed, whether they are linear, and whether the results disclose the neural design principles that control reaching behaviors. The authors admit that “it is difficult . . . to provide a direct biological interpretation for the system parameters” (sect. 6, para. 4).

scholarly journals THE ELECTROMAGNETIC FORM FACTOR OF THE PION: RESULTS FROM THE LATTICE

2013 ◽  
Vol 22 (12) ◽  
pp. 1330030 ◽  
Author(s):  
BASTIAN B. BRANDT
Keyword(s):  
Form Factor ◽  
Quantum Chromodynamics ◽  
Quality Criteria ◽  
Vector Form ◽  
Physical Point ◽  
Lattice Quantum Chromodynamics ◽  
Lattice Quantum ◽  
Future Challenges ◽  
Recent Developments ◽  
Systematic Effects

This review contains an overview over recent results for the electromagnetic iso-vector form factor of the pion obtained in lattice quantum chromodynamics (QCD) with dynamical fermions. Particular attention is given to the extrapolation to the physical point and an easy assessment of the control over the main systematic effects by imposing quality criteria and an associated sign code, similar to the ones used by the FLAG working group. Also included is a brief discussion of recent developments and future challenges concerning the accurate extraction of the form factor in the lattice framework.

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