Zobrazeno 1 - 10
of 53 267
pro vyhledávání: '"Greiner, A"'
We present a microscopic and dynamical model to study the formation, as well as dissociation and recombination processes of charmonium states in a heat bath at constant temperature and volume. Within this classical approach, the heavy quarks are desc
Externí odkaz:
http://arxiv.org/abs/2410.19619
In nuclear reactors, Delayed Neutron Precursors (DNPs) are important for reactor safety and operation. In liquid nuclear fuels, DNPs are transported by the flow, and an advection-reaction balance equation for their concentration must be solved in add
Externí odkaz:
http://arxiv.org/abs/2410.19476
Dropout often threatens the validity of causal inference in longitudinal studies. While existing studies have focused on the problem of missing outcomes caused by treatment, we study an important but overlooked source of dropout, selective eligibilit
Externí odkaz:
http://arxiv.org/abs/2410.17864
Autor:
Greiner, J., Krühler, T., Bolmer, J., Klose, S., Afonso, P. M. J., Elliott, J., Filgas, R., Graham, J. F., Kann, D. A., Knust, F., Yoldaş, A. Küpcü, Nardini, M., Guelbenzu, A. M. Nicuesa, Estay, F. Olivares, Rossi, A., Schady, P., Schweyer, T., Sudilovsky, V., Varela, K., Wiseman, P.
A dedicated gamma-ray burst (GRB) afterglow observing program was performed between 2007 and 2016 with GROND, a seven-channel optical and near-infrared imager at the 2.2m telescope of the Max-Planck Society at ESO/La Silla. In this first of a series
Externí odkaz:
http://arxiv.org/abs/2410.14441
Liouvillian dynamics describes the evolution of a density operator in closed quantum systems. One extension towards open quantum systems is provided by the Lindblad equation. It is applied to various systems and energy regimes in solid state physics
Externí odkaz:
http://arxiv.org/abs/2410.10925
Autor:
Buckner, Jack H., Meunier, Zechariah D., Arroyo-Esquivel, Jorge, Fitzpatrick, Nathan, Greiner, Ariel, McManus, Lisa C., Watson, James R.
Ecological systems often exhibit complex nonlinear dynamics like oscillations, chaos, and regime shifts. Universal dynamic equations have shown promise in modeling complex dynamics by combining known functional forms with neural networks that represe
Externí odkaz:
http://arxiv.org/abs/2410.09233
We investigate the transport properties of the strongly interacting quark-gluon plasma (sQGP) by comparing the role of elastic and inelastic (radiative) processes in the sQGP medium within the effective dynamical quasi-particle model (DQPM), construc
Externí odkaz:
http://arxiv.org/abs/2409.19369
Autor:
Sheng, Y., Imam, K., Kaur, A., Ajello, M., Domínguez, A., Rau, A., Cenko, S. B., Greiner, J., Hartmann, D. H., Cox, I., Joffre, S., Mcdaniel, A., Silver, R., Torres-Albà, N.
The spectroscopic redshift measurement of BL Lac, a class of blazar, is challenging because its spectrum has no or weak emission lines ($\leqslant5\AA$). We estimate the redshift by the photometric dropout technique for a sample of 64 blazars (59 BL
Externí odkaz:
http://arxiv.org/abs/2409.16236
Autor:
Sun, Jing, Slang, Sigmund, Elboth, Thomas, Greiner, Thomas Larsen, McDonald, Steven, Gelius, Leiv-J
Publikováno v:
Geophysics, 2020, vol. 85, no. 4, pp. WA13-WA26
For economic and efficiency reasons, blended acquisition of seismic data is becoming more and more commonplace. Seismic deblending methods are always computationally demanding and normally consist of multiple processing steps. Besides, the parameter
Externí odkaz:
http://arxiv.org/abs/2409.07930
Autor:
Lillelund, Christian Marius, Foomani, Ali Hossein Gharari, Sun, Weijie, Qi, Shi-ang, Greiner, Russell
Given an instance, a multi-event survival model predicts the time until that instance experiences each of several different events. These events are not mutually exclusive and there are often statistical dependencies between them. There are relativel
Externí odkaz:
http://arxiv.org/abs/2409.06525