Zobrazeno 1 - 10
of 23 016
pro vyhledávání: '"A Steffens"'
Autor:
Bhattacharya, Shohini, Cichy, Krzysztof, Constantinou, Martha, Gao, Xiang, Metz, Andreas, Miller, Joshua, Mukherjee, Swagato, Petreczky, Peter, Steffens, Fernanda, Zhao, Yong
In this work, we present a lattice QCD calculation of the Mellin moments of the twist-2 axial-vector generalized parton distribution (GPD), $\widetilde{H}(x,\xi,t)$, at zero skewness, $\xi$, with multiple values of the momentum transfer, $t$. Our ana
Externí odkaz:
http://arxiv.org/abs/2410.03539
Polarized neutron scattering experiments reveal the anisotropy of magnetic correlations in the candidate Kitaev material $\alpha$-RuCl$_3$. The anisotropy of the inelastic response at the magnetic Bragg positions is just opposite to the expectation f
Externí odkaz:
http://arxiv.org/abs/2409.08854
Autor:
Garcia, O. Boente, Bregliozzi, G., Calegari, D., Carassiti, V., Ciullo, G., Coco, V., Collins, P., Pinto, P. Costa, De Angelis, C., Di Nezza, P., Ferro-Luzzi, M., Fleuret, F., Graziani, G., Kotriakhova, S., Lenisa, P., Lu, Q., Lucarelli, C., Maurice, E., Mariani, S., Mattioli, K., Milovanovic, M., Pappalardo, L. L., Parragh, D. M., Piccoli, A., Sainvitu, P., Salvant, B., Sanders, F., Santimaria, M., Sestak, J., Squerzanti, S., Steffens, E., Tagliente, G., Vollenberg, W., Vollinger, C.
The recently installed internal gas target at LHCb presents exceptional opportunities for an extensive physics program for heavy-ion, hadron, spin, and astroparticle physics. A storage cell placed in the LHC primary vacuum, an advanced Gas Feed Syste
Externí odkaz:
http://arxiv.org/abs/2407.14200
Autor:
Fogh, E., Giriat, G., Zayed, M. E., Piovano, A., Boehm, M., Steffens, P., Safiulina, I., Hansen, U. B., Klotz, S., Soh, J. -R., Pomjakushina, E., Mila, F., Normand, B., Rønnow, H. M.
Quantum magnetic materials can provide explicit realizations of paradigm models in quantum many-body physics. In this context, SrCu$_2$(BO$_3$)$_2$ is a faithful realization of the Shastry-Sutherland model (SSM) for ideally frustrated spin dimers, ev
Externí odkaz:
http://arxiv.org/abs/2406.17546
Autor:
Alexandrou, Constantia, Bacchio, Simone, Constantinou, Martha, Delmar, Joseph, Finkenrath, Jacob, Kostrzewa, Bartosz, Petschlies, Marcus, Chacon, Luis Alberto Rodriguez, Spanoudes, Gregoris, Steffens, Fernanda, Urbach, Carsten, wenger, Urs
We present the full decomposition of the momentum fraction carried by quarks and gluons in the pion and the kaon. We employ three gauge ensembles generated with $N_f=2+1+1$ Wilson twisted-mass clover-improved fermions at the physical quark masses. Fo
Externí odkaz:
http://arxiv.org/abs/2405.08529
Autor:
Bhattacharya, Shohini, Cichy, Krzysztof, Constantinou, Martha, Metz, Andreas, Nurminen, Niilo, Steffens, Fernanda
Publikováno v:
Physical Review D 110 (2024) 054502
Generalized parton distributions (GPDs) are key quantities for the description of a hadron's three-dimensional structure. They are the current focus of all areas of hadronic physics -- phenomenological, experimental, and theoretical, including lattic
Externí odkaz:
http://arxiv.org/abs/2405.04414
Autor:
Steffens, Pelle
We study moduli spaces of solutions of nonlinear Partial Differential Equations on manifolds in the framework of derived $C^{\infty}$-geometry. For an arbitrary smooth stack $S$, we define $S$-families of nonlinear PDEs acting between $S$-families of
Externí odkaz:
http://arxiv.org/abs/2404.07931
Autor:
Gao, Bin, Desrochers, Félix, Tam, David W., Steffens, Paul, Hiess, Arno, Su, Yixi, Cheong, Sang-Wook, Kim, Yong Baek, Dai, Pengcheng
A quantum spin liquid (QSL) arises from a highly entangled superposition of many degenerate classical ground states in a frustrated magnet, and is characterized by emergent gauge fields and deconfined fractionalized excitations (spinons). Because suc
Externí odkaz:
http://arxiv.org/abs/2404.04207
Autor:
Mazza, Federico, Biswas, Sounak, Yan, Xinlin, Prokofiev, Andrey, Steffens, Paul, Si, Qimiao, Assaad, Fakher F., Paschen, Silke
A strange metal is an exotic state of correlated quantum matter; intensive efforts are ongoing to decipher its nature. Here we explore whether the quantum Fisher information (QFI), a concept from quantum metrology, can provide new insight. We use ine
Externí odkaz:
http://arxiv.org/abs/2403.12779
Image noise and motion artifacts greatly affect the quality of brain MRI and negatively influence downstream medical image analysis. Previous studies often focus on 2D methods that process each volumetric MR image slice-by-slice, thus losing importan
Externí odkaz:
http://arxiv.org/abs/2403.08162