Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Eulogio Oset"'
Autor:
Ju-Jun Xie, Eulogio Oset
Publikováno v:
Physics Letters B. 792:450-453
A Σ ⁎ resonance with spin-parity J P = 1 / 2 − and mass in the vicinity of the K ¯ N threshold has been predicted in the unitary chiral approach and inferred from the analysis of CLAS data on the γ p → K + π 0 Σ 0 reaction. In this work, b
Autor:
Eulogio Oset, Raquel Molina
Publikováno v:
The European Physical Journal C. 80
We evaluate the contribution to the X(3872) width from a triangle mechanism in which the X decays into $$D^{*0}{\bar{D}}^0 -cc$$ D ∗ 0 D ¯ 0 - c c , then the $$D^{*0} ({\bar{D}}^{*0})$$ D ∗ 0 ( D ¯ ∗ 0 ) decays into $$D^0 \pi ^0$$ D 0 π 0 ($
Publikováno v:
Physical Review D. 101
We have done a study of the ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}X(3872)$ reaction by means of a triangle mechanism via the chain of reactions: ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{\ensur
Autor:
Ju-Jun Xie, Eulogio Oset
Publikováno v:
Physics Letters B. 753:591-594
We study the role of the f 1 ( 1285 ) resonance in the decays of J / ψ → ϕ K ¯ K ⁎ and J / ψ → ϕ f 1 ( 1285 ) . The theoretical approach is based on the results of chiral unitary theory where the f 1 ( 1285 ) resonance is dynamically gener
Publikováno v:
Physics Letters B. 750:609-614
We investigate the decay of f 1 ( 1285 ) → π K K ¯ with the assumption that the f 1 ( 1285 ) is dynamically generated from the K ⁎ K ¯ − c c interaction. In addition to the tree level diagrams that proceed via f 1 ( 1285 ) → K ⁎ K ¯ −
Publikováno v:
Physics Letters B. 803:135279
In a recent paper [1] , the BESIII Collaboration reported the so-called first observation of pure W-annihilation decays D s + → a 0 + ( 980 ) π 0 and D s + → a 0 0 ( 980 ) π + . The measured absolute branching fractions are, however, puzzlingly
Publikováno v:
Physical Review D. 97
We have studied the $J/\ensuremath{\psi}\ensuremath{\phi}$ mass distribution of the ${B}^{+}\ensuremath{\rightarrow}J/\ensuremath{\psi}\ensuremath{\phi}{K}^{+}$ reaction from threshold to about 4250 MeV, and find that one needs the contribution of th
Publikováno v:
Physical Review C. 95
We analyze the data on cross sections and asymmetries for the $pd\ensuremath{\rightarrow}\ensuremath{\eta}\phantom{\rule{0.16em}{0ex}}^{3}\mathrm{He}$ reaction close to threshold and look for bound states of the $\ensuremath{\eta}\phantom{\rule{0.16e
Publikováno v:
Physical Review D. 94
We study the decay mode of the ${a}_{1}(1260)$ into a ${\ensuremath{\pi}}^{+}$ in $p$ wave and the ${f}_{0}(980)$ that decays into ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ in $s$ wave. The mechanism proceeds via a triangular mechan
Publikováno v:
Physical Review C. 93
We perform a calculation of the cross section for nine reactions induced by $\overline{K}$ scattering on protons. The reactions studied are ${K}^{\ensuremath{-}}p\ensuremath{\rightarrow}\mathrm{\ensuremath{\Lambda}}{\ensuremath{\pi}}^{+}{\ensuremath{