Results 61 to 70 of about 225,577 (311)

Positivity properties of scattering amplitudes

Journal of High Energy Physics
We investigate positivity properties in quantum field theory (QFT). We provide evidence, and in some case proofs, that many building blocks of scattering amplitudes, and in some cases the full amplitudes, satisfy an infinite number of positivity ...
Johannes Henn, Prashanth Raman
doaj   +1 more source

Spinning amplitudes from scalar amplitudes

Journal of High Energy Physics, 2021
We provide a systematic method to compute tree-level scattering amplitudes with spinning external states from amplitudes with scalar external states in arbitrary spacetime dimensions.
Mahesh K. N. Balasubramanian, Raj Patil, Arnab Rudra   +2 more
doaj   +1 more source

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

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

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

Advanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens, Kaishuai Zhang, Priscila Cavassin, Arwin Goossens, Jochen Vanderspikken, Tania C. H. Castillo, Demetra Tsokkou, Adam Marks, Arianna Magni, Karrie Weaver, Laurence Lutsen, Sahika Inal, Koen Vandewal, Natalie Banerji, Wouter Maes   +14 more
wiley   +1 more source

Splitting amplitudes at N3LO in QCD

Journal of High Energy Physics
In the limit where partons become collinear to each other, scattering amplitudes factorize into a product of universal, process-independent building blocks and scattering amplitudes involving fewer partons.
Xin Guan, Franz Herzog, Yao Ma, Bernhard Mistlberger, Adi Suresh   +4 more
doaj   +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

Quantum MHV diagrams [PDF]

, 2016
Over the past two years, the use of on-shell techniques has deepened our understanding of the S-matrix of gauge theories and led to the calculation of many new scattering amplitudes.
7th Workshop on Continuous Advances in QCD, Brandhuber, A, TRAVAGLINI, G   +2 more
core  

Flat-space scattering and bulk locality in the AdS/CFT correspondence

, 2000
The large radius limit in the AdS/CFT correspondence is expected to provide a holographic derivation of flat-space scattering amplitudes. This suggests that questions of locality in the bulk should be addressed in terms of properties of the S-matrix and ...
A. Martin, C. P. Burgess, D. Amati, D. J. Gross, D. J. Gross, D. W. Düsedau, D. Z. Freedman, E. Witten, F. Cerulus, J. Maldacena, L. Susskind, M. Abramowitz, M. Froissart, S. B. Giddings, S. S. Gubser, Steven B. Giddings, T. Inami, V. Balasubramanian, V. Balasubramanian, V. Balasubramanian, V. Ya. Fainberg   +20 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source