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A study of c cbar{c}bar{c} tetraquark decays in 4 muons and in D^((*)) bar{D}^((*)) at LHC

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arxiv 2006.14388 v2 pith:JCMU3K57 submitted 2020-06-25 hep-ph

A study of c cbar{c}bar{c} tetraquark decays in 4 muons and in D^((*)) bar{D}^((*)) at LHC

C. Becchi , A. Giachino , L. Maiani , E. Santopinto This is my paper
classification hep-ph
keywords muonschanneldecaystetraquarktetraquarksanalysisbasiscalculated
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We perform a quantitative analysis of the decays of $cc\bar c\bar c$ tetraquarks with $J^{PC}=0^{++}, 2^{++}$ into 4 muons and into hidden- and open-charm mesons and estimate, for the first time, the fully charmed tetraquark decay width. The calculated cross section upper limit is $\sim 40$ fb for the 4 muons channel, and $\sim 28$ nb for the $D^{(*)} \bar D^{(*)} \to e\mu$ channel. On the basis of our results, with the present sensitivity LHCb should detect both signals, for $0^{++}$ and $2^{++}$ fully-charmed tetraquarks.

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Cited by 3 Pith papers

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    The paper predicts a scalar cc-ccbar tetraquark state (X(6400)) and identifies it as the partner to the recently observed tensor state X(6600).

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    Using recent four-body quark model wave functions and NRQCD, the authors compute two-photon couplings and UPC cross sections for fully charmed tetraquarks, showing resonant terms exceed continuum in J/ψJ/ψ but not in ...

  3. Two photon decay width of the fully charmed tetraquarks: revisiting prospects for ultraperipheral collisions

    hep-ph 2026-05 unverdicted novelty 4.0

    Computes two-photon couplings of scalar and tensor fully-charmed tetraquarks via NRQCD from recent four-body wave functions and finds resonant terms dominate J/ψJ/ψ but not diphoton production in UPCs, disagreeing wit...