English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The $X(3872)$, whose mass coincides with the $D^0\bar D^{*0}$ threshold, isthe most extended hadron object. Since its discovery in 2003, debates havenever stopped regarding its internal structure. We propose a new object, the$X$ atom, which is the $D^\pm D^{*\mp}$ composite system with positive chargeparity and a mass of $(3879.89\pm0.07)$ MeV, formed mainly due to the Coulombforce. We show that a null signal of the $X$ atom can be used to put a lowerlimit on the binding energy of the $X(3872)$. From the current knowledge of the$X(3872)$ properties, the production rate for the $X$ atom relative to the$X(3872)$ in $B$ decays and at hadron colliders should be at least$1\times10^{-3}$. New insights into the $X(3872)$ will be obtained throughstudying the $X$ atom.

$D^{\pm}D^{*\mp}$ Hadronic Atom as a Key to Revealing the $X(3872)$ Mystery