Loop-Level Profiling and Analysis of DoD Applications Using TAU

Abstract We demonstrate the simplicity of AdS5× S5 IIB supergravity at one loop level, by studying non-planar holographic four-point correlators in Mellin space. We develop a systematic algorithm for constructing one-loop Mellin amplitudes from the tree-level data, and obtain a simple closed form answer for the $$ \left\langle {\mathcal{O}}_2^{SG}{\mathcal{O}}_2^{SG}{\mathcal{O}}_p^{SG}{\mathcal{O}}_p^{SG}\right\rangle $$ O 2 SG O 2 SG O p SG O p SG correlators. The structure of this expression is remarkably simple, containing only simultaneous poles in the Mellin variables. We also study the flat space limit of the Mellin amplitudes, which reproduces precisely the IIB supergravity one-loop amplitude in ten dimensions. Our results provide nontrivial evidence for the persistence of the hidden conformal symmetry at one loop.

Download Full-text

Fine-Tuning Loop-Level Parallelism for Increasing Performance of DSP Applications on FPGAs

12th Annual IEEE Symposium on Field-Programmable Custom Computing Machines ◽

10.1109/fccm.2004.32 ◽

2004 ◽

Author(s):

E. Ozre ◽

A.P. Nisbet ◽

D. Gregg

Keyword(s):

Fine Tuning ◽

Loop Level ◽

Level Parallelism ◽

Dsp Applications

Download Full-text

Loop level speculation in a task based programming model

20th Annual International Conference on High Performance Computing ◽

10.1109/hipc.2013.6799132 ◽

2013 ◽

Cited By ~ 2

Author(s):

Rahulkumar Gayatri ◽

Rosa. M Badia ◽

Eduard Aygaude

Keyword(s):

Programming Model ◽

Loop Level

Download Full-text

Higgs mass prediction in the MSSM at three-loop level in a pure $$\overline{{\text {DR}}}$$ DR ¯ context

The European Physical Journal C ◽

10.1140/epjc/s10052-017-5368-6 ◽

2017 ◽

Vol 77 (12) ◽

Cited By ~ 20

Author(s):

Robert V. Harlander ◽

Jonas Klappert ◽

Alexander Voigt

Keyword(s):

Higgs Mass ◽

Loop Level

Download Full-text

NUMERICAL REEXAMINATION OF SUPERSYMMETRIC AND NONSUPERSYMMETRIC SU(5)-LIKE GRAND UNIFIED MODELS

International Journal of Modern Physics A ◽

10.1142/s0217751x89000984 ◽

1989 ◽

Vol 04 (10) ◽

pp. 2531-2559 ◽

Cited By ~ 1

Author(s):

DARIUSZ K. GRECH

Keyword(s):

Numerical Analysis ◽

Numerical Computation ◽

Numerical Results ◽

Yukawa Couplings ◽

Loop Level ◽

Grand Unified Theories ◽

Unified Theories ◽

Supersymmetric Particles ◽

The Difference

The significance of numerical analysis in both nonsupersymmetric and supersymmetric Grand Unified Theories is pointed out. The exact analytical and numerical analysis we present shows a need of larger corrections to the values of unifying parameters, i.e. sin 2 θw, Mx, τp than those often quoted in literature. When an unmodified nonsupersymmetric version of SU(5) is considered we show that numerical computation allows some of the models still to be experimentally admissible. The difference between analytical and numerical results for the supersymmetric SU(5) model is also stressed. In particular, corrections due to the mass threshold of additional generations or supersymmetric particles are calculated both analytically and numerically at the two-loop level. We found them far more important for the final values of sin 2 θw, Mx and τp than the effects of Higgs-Yukawa couplings between scalars and fermions.

Download Full-text

Probing the dark axion portal with muon anomalous magnetic moment

The European Physical Journal C ◽

10.1140/epjc/s10052-021-09571-1 ◽

2021 ◽

Vol 81 (9) ◽

Cited By ~ 2

Author(s):

Shao-Feng Ge ◽

Xiao-Dong Ma ◽

Pedro Pasquini

Keyword(s):

Parameter Space ◽

Magnetic Moment ◽

Anomalous Magnetic Moment ◽

Muon Anomalous Magnetic Moment ◽

Negative Contribution ◽

Dark Photon ◽

Loop Level

AbstractWe propose a new scenario of using the dark axion portal at one-loop level to explain the recently observed muon anomalous magnetic moment by the Fermilab Muon g-2 experiment. Both axion/axion-like particle (ALP) and dark photon are involved in the same vertex with photon. Although ALP or dark photon alone cannot explain muon $$g-2$$ g - 2 , since the former provides only negative contribution while the latter has very much constrained parameter space, dark axion portal can save the situation and significantly extend the allowed parameter space. The observed muon anomalous magnetic moment provides a robust probe of the dark axion portal scenario.

Download Full-text

On differential operators and unifying relations for 1-loop Feynman integrands

Journal of High Energy Physics ◽

10.1007/jhep10(2021)150 ◽

2021 ◽

Vol 2021 (10) ◽

Author(s):

Kang Zhou

Keyword(s):

Sigma Model ◽

Differential Operators ◽

Linear Sigma Model ◽

Tree Level ◽

Maxwell Theory ◽

Scalar Theory ◽

Yang Mills ◽

Loop Level ◽

Wide Range ◽

Non Linear

Abstract We generalize the unifying relations for tree amplitudes to the 1-loop Feynman integrands. By employing the 1-loop CHY formula, we construct differential operators which transmute the 1-loop gravitational Feynman integrand to Feynman integrands for a wide range of theories, including Einstein-Yang-Mills theory, Einstein-Maxwell theory, pure Yang-Mills theory, Yang-Mills-scalar theory, Born-Infeld theory, Dirac-Born-Infeld theory, bi-adjoint scalar theory, non-linear sigma model, as well as special Galileon theory. The unified web at 1-loop level is established. Under the well known unitarity cut, the 1-loop level operators will factorize into two tree level operators. Such factorization is also discussed.

Download Full-text