X(3872): The hidden charm of nuclear physics

U. Van Kolck

doi:10.1063/1.3523166

X(3872): The hidden charm of nuclear physics

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 J^PC=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 D⁰D̄ ⁰π⁰.

Original language	English (US)
Title of host publication	XI Hadron Physics
Pages	189-194
Number of pages	6
DOIs	https://doi.org/10.1063/1.3523166
State	Published - 2010
Externally published	Yes
Event	International Conference "1st Stars and Galaxies: Challenges for the Next Decade" - Sao Paulo, Brazil Duration: Mar 21 2010 → Mar 26 2010

Publication series

Name	AIP Conference Proceedings
Volume	1296
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	International Conference "1st Stars and Galaxies: Challenges for the Next Decade"
Country/Territory	Brazil
City	Sao Paulo
Period	3/21/10 → 3/26/10

Keywords

X(3872), Effective Field Theory

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.3523166

Cite this

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title = "X(3872): The hidden charm of nuclear physics",

abstract = "I discuss an effective field theory, X-EFT, for the X(3872), a state very close to the D0{\=D}*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 {\=D}*, 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 0{\=D}*0 threshold, into D0{\=D} 0π0.",

keywords = "X(3872), Effective Field Theory",

author = "{Van Kolck}, U.",

year = "2010",

doi = "10.1063/1.3523166",

language = "English (US)",

isbn = "9780735408487",

series = "AIP Conference Proceedings",

pages = "189--194",

booktitle = "XI Hadron Physics",

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AB - 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 D0D̄ 0π0.

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DO - 10.1063/1.3523166

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BT - XI Hadron Physics

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ER -

X(3872): The hidden charm of nuclear physics

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