Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Ju Jun Xie"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 3, Pp 1-7 (2023)
Abstract We investigate the production of $$X_b$$ X b in the process $$\Upsilon (5S,6S)\rightarrow \gamma X_b$$ Υ ( 5 S , 6 S ) → γ X b , where $$X_b$$ X b is assumed to be a $$B {\bar{B}}^*$$ B B ¯ ∗ molecular state. Two kinds of meson loops
Externí odkaz:
https://doaj.org/article/f0c0754985be428a8bba10081aa77aef
Publikováno v:
Nuclear Physics B, Vol 994, Iss , Pp 116321- (2023)
We calculate the valence quark distribution functions of the π meson using the non-relativistic chiral constituent quark model. The π wave function is obtained by solving the two-body Schrödinger equation within the framework of constituent quark
Externí odkaz:
https://doaj.org/article/06e1cd689c8243fcb8009224e1274fbc
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 12, Pp 1-9 (2022)
Abstract In present work, spectrum of the S-wave fully-heavy tetraquark states $$QQ\bar{Q}\bar{Q}$$ Q Q Q ¯ Q ¯ ( $$Q=c,b$$ Q = c , b ), i.e., $$cc\bar{c}\bar{c}$$ c c c ¯ c ¯ , $$bb\bar{b}\bar{b}$$ b b b ¯ b ¯ , $$cc\bar{b}\bar{b}$$ c c b ¯ b
Externí odkaz:
https://doaj.org/article/f7eb6125a9fe4a84bda00ae9695a7e32
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 8, Pp 1-7 (2022)
Abstract We perform a theoretical study on the $$D\bar{D}K$$ D D ¯ K three body system, using the fixed center approximation to the Faddeev equations, considering the interaction between D and K, D and $$\bar{D}$$ D ¯ from the chiral unitary approa
Externí odkaz:
https://doaj.org/article/e0231c4a517141dfbcb8cea4399f6ea3
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 8, Pp 1-15 (2022)
Abstract Spectrum of the low-lying hidden- and double-charm tetraquark states are investigated in a nonrelativistic quark potential model, where the instanton-induced interaction is taken as the residual spin-dependent hyperfine interaction between q
Externí odkaz:
https://doaj.org/article/995badb828b54962be46835d00e024f0
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 12, Pp 1-5 (2020)
Abstract The LHCb collaboration recently reported the observation of a narrow peak in the $$D^- K^+$$ D - K + invariant mass distributions from the $$B^+\rightarrow D^+ D^- K^+$$ B + → D + D - K + decay. The peak is parameterized in terms of two re
Externí odkaz:
https://doaj.org/article/97286a73af5b4e12bce11afb37fb928e
Publikováno v:
Physics Letters B, Vol 826, Iss , Pp 136897- (2022)
Inspired by the recent discovery of a doubly charmed tetraquark state Tcc+ by the LHCb Collaboration, we employ the effective Lagrangian approach to investigate the decay width of Tcc+→D+D0π0/D0D0π+ and Tcc+→D0D+γ with the assumption that Tcc+
Externí odkaz:
https://doaj.org/article/6ea27dd2aca14372a537ea8f9d396745
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 10, Pp 1-8 (2020)
Abstract Lately, the LHCb Collaboration reported the discovery of two new states in the $$B^+\rightarrow D^+D^- K^+$$ B + → D + D - K + decay, i.e., $$X_0(2866)$$ X 0 ( 2866 ) and $$X_1(2904)$$ X 1 ( 2904 ) . In the present work, we study whether t
Externí odkaz:
https://doaj.org/article/ced33e272337478e905dbe38a663cd21
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 9, Pp 1-10 (2020)
Abstract In the chiral unitary approach, we have studied the single Cabibbo-suppressed decays $$\Lambda _c\rightarrow pK^+K^-$$ Λ c → p K + K - and $$\Lambda _c \rightarrow p \pi ^+\pi ^-$$ Λ c → p π + π - by taking into account the s-wave me
Externí odkaz:
https://doaj.org/article/c350a90b1cec4f2a8d9390480eeb5777
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 5, Pp 1-7 (2020)
Abstract We investigate the charmless decays of excited P-wave charmonia $$\chi _{c1}^\prime \rightarrow VV$$ χc1′→VV and $$\chi _{c2}^\prime \rightarrow VP$$ χc2′→VP via intermediate charmed meson loops, where V and P denote the light vect
Externí odkaz:
https://doaj.org/article/bbf5a8b40bf14fe6af1b7a2b94eb9dd4