Results 111 to 120 of about 2,132,739 (345)

Analyzing cancellation mechanism of the dark matter-quark scattering in a complex singlet extension of the Standard Model

Nuclear Physics B, 2023
We investigate a suppression mechanism of dark matter and quark scattering amplitudes in a complex singlet extension of the Standard Model. It has been pointed out that, in a some variant of the model, the scattering amplitudes cancel each other in the ...
Gi-Chol Cho, Chikako Idegawa
doaj   +1 more source

Two-Loop Helicity Amplitudes for Quark-Gluon Scattering in QCD and Gluino-Gluon Scattering in Supersymmetric Yang-Mills Theory

, 2003
We present the two-loop QCD helicity amplitudes for quark-gluon scattering, and for quark-antiquark annihilation into two gluons. These amplitudes are relevant for next-to-next-to-leading order corrections to (polarized) jet production at hadron ...
A.D. Martin, A.V. Bogdan, Abilio De Freitas, C. Anastasiou, C. Anastasiou, C. Anastasiou, C. Anastasiou, C. Anastasiou, D. de Florian, D.A. Kosower, D.A. Kosower, E.A. Kuraev, E.W.N. Glover, E.W.N. Glover, F. Aversa, F.A. Berends, I. Jack, J. Soffer, J.A.M. Vermaseren, J.C. Collins, K.S. Kölbig, L. Dixon, L. Lewin, L.W. Garland, L.W. Garland, Lance Dixon, M.L. Mangano, M.T. Grisaru, P. Nogueira, R.K. Ellis, S. Alekhin, S. Catani, S. Catani, S. Moch, S. Moch, S. Weinzierl, S.D. Ellis, S.D. Ellis, S.J. Parke, T. Binoth, T. Gehrmann, V. Del Duca, V.A. Smirnov, W.L. van Neerven, W.T. Giele, W.T. Giele, W.T. Giele, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Kunszt, Z. Xu, Zvi Bern   +60 more
core   +2 more sources

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

Advanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

Chaotic scattering of highly excited strings

Journal of High Energy Physics, 2021
Motivated by the desire to understand chaos in the S-matrix of string theory, we study tree level scattering amplitudes involving highly excited strings. While the amplitudes for scattering of light strings have been a hallmark of string theory since its
David J. Gross, Vladimir Rosenhaus
doaj   +1 more source

AN INTEGRAL EQUATION FOR SCATTERING AMPLITUDES

Physical Review Letters, 1969
We outline a dynamical scheme for studying Regge behavior of scattering amplitudes. It is based on unitarity and the concept of short-range momentum-space correlations in high-energy processes.
Chew, G. F., Goldberger, M. L., Low, F. E.   +2 more
openaire   +4 more sources

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

Advanced Engineering Materials, EarlyView.
The share of technical thermoplastics is expected to grow further in the e‐mobility segment. In this study, a detailed temperature‐based tribological characterization of technical thermoplastics is performed. The tribological properties are discussed in terms of the dynamic mechanical properties of polymers at different ambient temperatures. A proof of
Harsha Raghuram, Thomas Koch, Vasiliki-Maria Archodoulaki   +2 more
wiley   +1 more source

Einstein-Yang-Mills Scattering Amplitudes From Scattering Equations

, 2014
We present the building blocks that can be combined to produce tree-level S-matrix elements of a variety of theories with various spins mixed in arbitrary dimensions.
Cachazo, Freddy, He, Song, Yuan, Ellis Ye   +2 more
core   +1 more source

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder, Ying Han, Tobias Fritsch, Bardia Hejazi, Alexander Ulbricht, Birgit Skrotzki, Giovanni Bruno   +6 more
wiley   +1 more source

Analytical amplitudes from numerical solutions of the scattering equations

Journal of High Energy Physics, 2020
The CHY formalism for massless scattering provides a cohesive framework for the computation of scattering amplitudes in a variety of theories. It is especially compelling because it elucidates existing relations among theories which are seemingly ...
Giuseppe De Laurentis
doaj   +1 more source

Power-law Behavior of High Energy String Scatterings in Compact Spaces

, 2007
We calculate high energy massive scattering amplitudes of closed bosonic string compactified on the torus. We obtain infinite linear relations among high energy scattering amplitudes.
Chan C T, J-C Lee, Maldacena J, Y Yang
core   +1 more source