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Shi, Pan-Pan; Zhang, Zhen-Hua; Guo, Feng-Kun; Yang, Zhi2
D+D- hadronic atom and its production in pp and p(p)over-bar collisions
Source PublicationPHYSICAL REVIEW D
AbstractThere must be Coulomb bound states of a pair of hadrons, which are stable against the strong interaction, with opposite electric charges. Such bound states are hadronic atoms. We study the properties and the production of the ground-state D+D- hadronic atom A(D+D-), called dionium, with quantum numbers J(PC) = 0(++). Using a nonrelativistic effective field theory for the D-0(D) over bar (0)-D+D- coupled-channel system, the mass of the ground-state dionium is predicted to be (3739.3 +/- 0.1) MeV, with the binding energy reduced by about 10% compared to the Coulomb binding energy due to the strong interaction. Its width for the decay into the neutral D-0(D) over bar (0) channel is predicted to be 1.8(-0.6)(+1.4) keV using lattice inputs for the D (D) over bar strong interaction. The cross section for the inclusive prompt production of the dionium at CMS and LHCb and that for the direct production p (p) over bar -> A(D+D-) at PANDA are estimated at an order-of-magnitude level. In particular, we expect that O(10(3)-10(5)) events of the reaction chain p (p) over bar -> A(D+D-) -> D0 (D) over bar (0) -> K-pi K-+(+)pi(-) can be collected at PANDA, and valuable information on the charmed meson interaction and on understanding charmoniumlike states will be obtained.
Cooperation Status国内
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
Indexed BySCIE
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Document Type期刊论文
Affiliation1.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
3.Univ Elect Sci & Technol China, Sch Phys, Chengdu 610054, Peoples R China
Recommended Citation
GB/T 7714
Shi, Pan-Pan,Zhang, Zhen-Hua,Guo, Feng-Kun,et al. D+D- hadronic atom and its production in pp and p(p)over-bar collisions[J]. PHYSICAL REVIEW D,2022,105(3):34024.
APA Shi, Pan-Pan,Zhang, Zhen-Hua,Guo, Feng-Kun,&Yang, Zhi.(2022).D+D- hadronic atom and its production in pp and p(p)over-bar collisions.PHYSICAL REVIEW D,105(3),34024.
MLA Shi, Pan-Pan,et al."D+D- hadronic atom and its production in pp and p(p)over-bar collisions".PHYSICAL REVIEW D 105.3(2022):34024.
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