X(3872): The hidden charm of nuclear physics

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

I discuss an effective field theory, X-EFT, for the X(3872), a state very close to the D0D̄*0 threshold just as the deuteron is close to the proton-neutron threshold. I use a field for the X (3872) assuming its quantum numbers to be JPC=1++. Pions are kept explicit in X-EFT together with D and D̄*, because pion exchange is relatively long-ranged due to a partial cancellation between the D*-D mass splitting and the pion mass. Pion exchange is amenable to perturbation theory. I illustrate X-EFT with a calculation up to next-to-leading order of the partial decay width of the X, assumed to be below the D 0D̄*0 threshold, into D00π0.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages189-194
Number of pages6
Volume1296
DOIs
StatePublished - 2010
EventInternational Conference "1st Stars and Galaxies: Challenges for the Next Decade" - Sao Paulo, Brazil
Duration: Mar 21 2010Mar 26 2010

Other

OtherInternational Conference "1st Stars and Galaxies: Challenges for the Next Decade"
CountryBrazil
CitySao Paulo
Period3/21/103/26/10

Fingerprint

nuclear physics
pions
thresholds
cancellation
quantum numbers
deuterons
perturbation theory
neutrons
protons
decay

Keywords

  • X(3872), Effective Field Theory

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Van Kolck, U. (2010). X(3872): The hidden charm of nuclear physics. In AIP Conference Proceedings (Vol. 1296, pp. 189-194) https://doi.org/10.1063/1.3523166

X(3872) : The hidden charm of nuclear physics. / Van Kolck, Ubirajara.

AIP Conference Proceedings. Vol. 1296 2010. p. 189-194.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Van Kolck, U 2010, X(3872): The hidden charm of nuclear physics. in AIP Conference Proceedings. vol. 1296, pp. 189-194, International Conference "1st Stars and Galaxies: Challenges for the Next Decade", Sao Paulo, Brazil, 3/21/10. https://doi.org/10.1063/1.3523166
Van Kolck U. X(3872): The hidden charm of nuclear physics. In AIP Conference Proceedings. Vol. 1296. 2010. p. 189-194 https://doi.org/10.1063/1.3523166
Van Kolck, Ubirajara. / X(3872) : The hidden charm of nuclear physics. AIP Conference Proceedings. Vol. 1296 2010. pp. 189-194
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