Zobrazeno 1 - 10
of 4 613
pro vyhledávání: '"Shi, Dong"'
We used an effective Lagrangian approach to investigate the production of the anticharmed pentaquark state $P_{\bar{c}s}^{(*)-}$ with the minimal quark content $\bar{c}sudd$ in the $\Lambda_b^0$ decay and its decay into the $\Lambda D^{(\ast)-}$ and
Externí odkaz:
http://arxiv.org/abs/2411.01910
The Weyl type $f(Q,T)$ modified gravity theory is an extension of the $f(Q)$ and $f(Q,T)$ type theories, where $T$ is the trace of the matter energy-momentum tensor, and the scalar non-metricity $Q$ is represented in its standard Weyl form, and it is
Externí odkaz:
http://arxiv.org/abs/2407.10421
The Belle collaboration recently reported a promising candidate for the spin-2 $D^*\bar{D}^*$ partner of the $X(3872)$, called the $X_2$ for short, having a mass of $(4014.3 \pm 4.0 \pm 1.5)~\mathrm{MeV}$ and a width of $(4 \pm 11 \pm 6)~\mathrm{MeV}
Externí odkaz:
http://arxiv.org/abs/2407.03567
We investigated the pionic transitions between the $X_2$ [spin-2 partner of the $X(3872)$] and $\chi_{c1,2}$ using a nonrelativistic effective field theory. The $X_2$ is assumed to be a bound state of the $D^{*}$ and $\bar{D}^*$ mesons and to decay t
Externí odkaz:
http://arxiv.org/abs/2406.01874
Autor:
Fan, Annan, Liang, Shi-Dong
Publikováno v:
Ann. Phys. (Berlin) 2022, 2100443
We introduce the velocity field of the Bloch electrons and propose the velocity field approach to characterize the topological invariants of quantum states. We find that the zero modes of the velocity field flow play the roles of effective topologica
Externí odkaz:
http://arxiv.org/abs/2406.10230
Autor:
Fan, Annan, Liang, Shi-Dong
Publikováno v:
Results in Physics 31 (2021) 104912
We propose the velocity field approach to characterize topological invariants of quantum states. We introduce the indexes of the velocity field flow based on the zero modes of the velocity field and find that these zero modes play the role of effecti
Externí odkaz:
http://arxiv.org/abs/2403.08232
Autor:
Liang, Shi-Dong
Publikováno v:
Symmetry 2023, 15, 367
We extend the three-dimensional noncommutative relations of the positions and momenta operators to those in the four dimension. Using the Bopp shift technique, we give the Heisenberg representation of these noncommutative algebras and endow the nonco
Externí odkaz:
http://arxiv.org/abs/2403.09075
We studied the radiative transitions between the $\Upsilon(10753)$, the $S$-$D$ mixed state of the $\Upsilon(4S)$ and $\Upsilon_1(3\,{}^3D_1)$, and the $X_b$, the heavy quark flavor symmetry counterpart of the $X(3782)$ in the bottomonium sector. The
Externí odkaz:
http://arxiv.org/abs/2403.01676
CSST Large-scale Structure Analysis Pipeline: II. the CSST Emulator for Slitless Spectroscopy (CESS)
Autor:
Wen, Run, Zheng, Xian Zhong, Han, Yunkun, Yang, Xiaohu, Wang, Xin, Zou, Hu, Liu, Fengshan, Zhang, Xin, Zu, Ying, Shi, Dong Dong, Gu, Yizhou, Wang, Yirong
The Chinese Space Station Telescope (CSST) slitless spectroscopic survey will observe objects to a limiting magnitude of ~ 23 mag (5$\sigma$, point sources) in U, V, and I over 17500 deg$^2$. The spectroscopic observations are expected to be highly e
Externí odkaz:
http://arxiv.org/abs/2401.04171
Autor:
Qiao, Man, Zheng, Xian Zhong, Katsianis, Antonios, Qin, Jianbo, Pan, Zhizheng, Liu, Wenhao, Tan, Qing-Hua, An, Fang Xia, Shi, Dong Dong, Lü, Zongfei, Zhang, Yuheng, Wen, Run, Liu, Shuang, Yang, Chao
Dust attenuation in star-forming galaxies (SFGs), as parameterized by the infrared excess (IRX $\equiv L_{\rm IR}/L_{\rm UV}$), is found to be tightly correlated with star formation rate (SFR), metallicity and galaxy size, following a universal IRX r
Externí odkaz:
http://arxiv.org/abs/2401.02875