Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Baru Vadim"'
Autor:
Baru Vadim
Publikováno v:
EPJ Web of Conferences, Vol 291, p 01013 (2024)
We discuss how to decipher the nature of near-threshold exotic states from ex perimental line shapes and lattice QCD simulations. A brief overview of the effective-field-theory approach for analyzing such states is presented, highlight ing the specia
Externí odkaz:
https://doaj.org/article/b7f142f267af40ee9b3ddd6b22d978d4
Autor:
Golak Jacek, Urbanevych Vitalii, Skibiński Roman, Witała Henryk, Topolnicki Kacper, Baru Vadim, Filin Arseniy A., Epelbaum Evgeny, Kamada Hiroyuki, Nogga Andreas
Publikováno v:
EPJ Web of Conferences, Vol 291, p 04006 (2024)
Abstract. The π− + 2H → n + n, π− + 3H → n + n + n, π− + 3He → n + d and π− + 3He → p + n + n capture reactions from the lowest atomic orbitals are investigated under full inclusion of final state interactions and employing the si
Externí odkaz:
https://doaj.org/article/2b46e6394e3145b1997094d8f02b2e37
Publikováno v:
EPJ Web of Conferences, Vol 291, p 03006 (2024)
Abstract. We show that the currently available data are consistent with Y(4230) being a D1D¯ hadronic molecule. By a simultaneous fit to data from e+e− → D0D*−π+, J/ψπ+π−, J/ψK+ K−, hcπ+π−, J/ψη, χc0ω, χc1(3872)γ and µ+µ
Externí odkaz:
https://doaj.org/article/7761de106fce460b9782dd2db530f2a1
Autor:
Abolnikov, Michael, Baru, Vadim, Epelbaum, Evgeny, Filin, Arseniy A., Hanhart, Christoph, Meng, Lu
We employ a chiral effective field theory-based approach to connect $DD^*$ scattering observables at the physical and variable pion masses accessible in lattice QCD simulations. We incorporate all relevant scales associated with three-body $DD\pi$ dy
Externí odkaz:
http://arxiv.org/abs/2407.04649
Publikováno v:
Phys. Rev. D 109, L111501 (2024)
We demonstrate that the dip observed near the total energy of 3872 MeV in the recent cross section data from the BESIII Collaboration for $e^+e^-\to J/\psi\pi^+\pi^- $ admits a natural explanation as a coupled-channel effect: it is a consequence of u
Externí odkaz:
http://arxiv.org/abs/2404.12003
In recent years many vector charmonium(-like) states were reported by different electron-positron collider experiments above $4.2$ GeV. However, so far, there not only exists sizable tension in the parameters of those states, but there is also no con
Externí odkaz:
http://arxiv.org/abs/2402.03057
Publikováno v:
Chin.Phys.Lett. 41 (2024) 3, 031301
In 2021, the Belle collaboration reported the first observation of a new structure in the $\psi(2S) \gamma$ final state produced in the two-photon fusion process. In the hadronic molecule picture, this new structure can be associated with the shallow
Externí odkaz:
http://arxiv.org/abs/2312.05389
We discuss a novel effective-field-theory-based approach for extracting two-body scattering information from finite volume energies, serving as an alternative to L\"uscher's method. By explicitly incorporating one-pion exchange, we overcome the chall
Externí odkaz:
http://arxiv.org/abs/2312.01930
We show that the currently available data are consistent with $Y(4230)$ being a $D_1 \bar{D}$ hadronic molecule. By a simultaneous fit to data from $e^+ e^- \rightarrow D^0 D^{* -} \pi^+,\: J/\psi \pi^+ \pi^-,\: J/\psi K^+ K^-,\: h_c \pi^+ \pi^-,\: J
Externí odkaz:
http://arxiv.org/abs/2309.11970
Autor:
Du, Meng-Lin, Filin, Arseniy, Baru, Vadim, Dong, Xiang-Kun, Epelbaum, Evgeny, Guo, Feng-Kun, Hanhart, Christoph, Nefediev, Alexey, Nieves, Juan, Wang, Qian
We discuss recent lattice data for the $T_{cc}(3875)^+$ state to stress, for the first time, a potentially strong impact of left-hand cuts from the one-pion exchange on the pole extraction for near-threshold exotic states. In particular, if the left-
Externí odkaz:
http://arxiv.org/abs/2303.09441