This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevD.91.034002 in citations.
Please use the identifier: http://hdl.handle.net/2128/11128 in citations.
Remarks on study of $X\left(3872\right)$ from effective field theory with pion-exchange interaction
Remarks on study of $X\left(3872\right)$ from effective field theory with pion-exchange interaction
In a recent paper [P.Wang and X.-G.Wang, Phys. Rev. Lett. 111, 042002 (2013)], the charmonium stateX(3872) is studied in the framework of an effective field theory. In that work it is claimed that (i) the onepionexchange (OPE) alone provides sufficient binding to produce the X as a shallow bound sta...
Saved in:
Personal Name(s): | Baru, V. (Corresponding Author) |
---|---|
Epelbaum, E. / Filin, A. A. / Guo, F.-K. / Hammer, H.-W. / Hanhart, C. / Meißner, U.-G. / Nefediev, A. V. | |
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 Theorie der Starken Wechselwirkung; IAS-4 |
Published in: | Physical Review D Physical review / D, 91 91 (2015 2015) 3 3, S. 034002 034002 |
Imprint: |
[S.l.]
Soc.
2015
2015-02-02 2015-02-01 |
DOI: |
10.1103/PhysRevD.91.034002 |
Document Type: |
Journal Article |
Research Program: |
TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik Computational Science and Mathematical Methods |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/11128 in citations.
In a recent paper [P.Wang and X.-G.Wang, Phys. Rev. Lett. 111, 042002 (2013)], the charmonium stateX(3872) is studied in the framework of an effective field theory. In that work it is claimed that (i) the onepionexchange (OPE) alone provides sufficient binding to produce the X as a shallow bound state at theD0D^*0 threshold, (ii) short-range dynamics (described by a contact interaction) provides only moderatecorrections to the OPE, and (iii) the X-pole disappears as the pion mass is increased slightly and thereforethe X should not be seen on the lattice, away from the pion physical mass point, if it were a molecular state.In this paper we demonstrate that the results of P. Wang and X.-G. Wang suffer from technical as well asconceptual problems and therefore do not support the conclusions drawn by the authors |