Results 161 to 170 of about 2,316,597 (371)

On fine structure of strings: the universal correction to the Veneziano amplitude

Journal of High Energy Physics, 2018
We consider theories of weakly interacting higher spin particles in flat space-time. We focus on the four-point scattering amplitude at high energies and imaginary scattering angles. The leading asymptotic of the amplitude in this regime is universal and
Amit Sever, Alexander Zhiboedov
doaj   +1 more source

Wilson Loops and QCD/String Scattering Amplitudes

, 2009
We generalize modern ideas about the duality between Wilson loops and scattering amplitudes in ${\cal N}=4$ SYM to large $N$ QCD by deriving a general relation between QCD meson scattering amplitudes and Wilson loops.
A. M. Polyakov, E. Witten, J. Maldacena, P. Di Vecchia, Poul Olesen, Y. Makeenko, Yuri Makeenko, Z. Nehari   +7 more
core   +1 more source

On the acoustic scattering amplitude for a multi-layered Scatterer [PDF]

The Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1998
AbstractWe consider the boundary-value problems corresponding to the scattering of a time-harmonic acoustic plane wave by a multi-layered obstacle with a sound-soft, hard or penetrable core. Firstly, we construct in closed forms the normalized scattering amplitudes and prove the classical reciprocity and scattering theorems for these problems.
openaire   +3 more sources

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

Advanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan, Marie Le Pivert, Alireza Ranjbari, Diana Dragoe, Daniel Bahena‐Uribe, Christophe Colbeau‐Justin, Christian Herrero, Dorota Rutkowska‐Zbik, Johnny Deschamps, Hynd Remita   +9 more
wiley   +1 more source

Low-frequency acoustic scattering by an infinitely stratified scatterer [PDF]

Rendiconti di Matematica e delle Sue Applicazioni, 1995
In this work we consider the problem of scattering of a plane acoustic wave by an infinitely stratified scatterer with a soft, a rigid or a resistive core. Firstly, we prove the existence and uniqueness of solutions of this problem.
C. ATHANASIADIS, I.G. STRATIS
doaj  

Decoding the Structure of Benzodithiophene Polymers for High‐Efficiency Organic Solar Cells

Advanced Functional Materials, EarlyView.
This study reveals a unique solid mesophase in top‐performing benzodithiophene‐based polymers for solar cells, comprising stacked solid‐like and liquid‐like layers. Combining nanoscale fibrillar domains with amorphous regions, it introduces a new structural paradigm.
Matteo Sanviti, Sara Marina, Xabier Rodriguez‐Martínez, Jesika Asatryan, Valerio Di Lisio, Sandra Hultmark, Junkal Gutierrez, Eduardo Solano, Jeromy J. Rech, Eugenio L. Solla, Wei You, Agnieszka Tercjak, M. Eugenio Vázquez, Daniele Cangialosi, Christian Müller, Harald Ade, Jaime Martin   +16 more
wiley   +1 more source

Four-graviton scattering to three loops in N = 8 $$ \mathcal{N}=8 $$ supergravity

Journal of High Energy Physics, 2019
We compute the three-loop scattering amplitude of four gravitons in N = 8 $$ \mathcal{N}=8 $$ supergravity. Our results are analytic formulae for a Laurent expansion of the amplitude in the regulator of dimensional regularisation.
J. M. Henn, B. Mistlberger
doaj   +1 more source

Heavy quarks in deeply virtual Compton scattering

, 2003
A detailed study of the heavy quark h=c,b,... contributions to deeply virtual Compton scattering is performed at both the amplitude and the cross section level, and their phenomenological relevance is discussed.
A. Airapetian, A. Denner, A. Denner, A. Freund, A. Freund, A. Freund, A. Freund, A. V. Belitsky, A. V. Belitsky, A. V. Belitsky, A. V. Belitsky, A. V. Belitsky, A. V. Belitsky, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, A. V. Radyushkin, B. W. Harris, B. W. Harris, C. Adloff, C. Adloff, D. Müller, E. Witten, G. Passarino, G. ’t Hooft, H. L. Lai, I. Schienbein, J. C. Collins, J. C. Collins, J. C. Collins, J. D. Noritzsch, Jens D. Noritzsch, L. Mankiewicz, L. Mankiewicz, M. Burkardt, M. Burkardt, M. Buza, M. Diehl, M. Diehl, M. Glück, M. Glück, M. Glück, M. Glück, M. Jamin, N. Kivel, P. Hoodbhoy, S. Chekanov, S. Chekanov, S. Kretzer, S. Stepanyan, T. Appelquist, V. M. Budnev, X. Ji, X. Ji, X. Ji   +55 more
core   +3 more sources

Tuning the Hydrogen Bond Network Inside the Helmholtz Plane for Industrial Hydrogen Evolution

Advanced Functional Materials, EarlyView.
The hydrogen bond network within the Helmholtz plane, a key component affecting the hydrogen evolution kinetics, remains far from having a consensus owing to the lack of fundamental understanding. Herein, it is discovered that the introduction of the atomic electric field generated by the weak Ru─Ga bonds can further improve the proportion of 4 ...
Xinyu Chen, Bianjing Sun, Qun Song, Zengbin Wang, Chenchen Qin, Muhammad Amjad Majeed, Chuntao Chen, Dongping Sun, Kai Zhang, Ming Zhao   +9 more
wiley   +1 more source

Atomic scattering amplitudes for electron diffraction [PDF]

, 1954
James A. Ibers, J. A. Hoerni
openalex   +1 more source