Abstract
In this paper, we carry out a detailed study on the production of the doubly charmed baryon in deeply inelastic ep scattering (DIS) for Q2 ∈ [2, 100] GeV2, at the Large Hadron Electron Collider (LHeC) with Ee = 60(140) GeV and Ep = 7000 GeV. To exclude the contributions from the diffractive productions and the b hadron decays, we impose the kinematic cuts 0.3 < z < 0.9, and \( {p}_{t,\mathrm{baryon}}^{\star 2} \) > 1 GeV2 in the center-of-mass (CM) frame of γ∗p. Based on the designed LHeC luminosity, by detecting the decay channel \( {\Xi}_{cc}^{+}\left({\Xi}_{cc}^{++}\right)\to {\Lambda}_c^{+} \) with the subsequent decay \( {\Lambda}_c^{+}\to {pK}^{-}{\pi}^{+} \), we predict that about 1880 (2700) \( {\Xi}_{cc}^{+} \) events and 3750 (5400) \( {\Xi}_{cc}^{++} \) events can be accumulated per year, which signifies the prospect of observing them via the DIS at the forthcoming LHeC. In addition, we also predict the distributions of a rich variety of physical observables in the laboratory frame and the γ∗p CM frame, including Q2, \( {p}_t^2 \), Y (rapidity), \( {p}_t^{\star 2},{Y}^{\star } \), W, and z distributions, respectively, which can provide helpful references for studying the doubly charmed baryon. In conclusion, we think that in addition to the LHC, the LHeC is also a helpful platform for studying the properties of the doubly charmed baryon.
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Sun, Z., Wu, XG. The production of the doubly charmed baryon in deeply inelastic ep scattering at the Large Hadron Electron Collider. J. High Energ. Phys. 2020, 34 (2020). https://doi.org/10.1007/JHEP07(2020)034
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DOI: https://doi.org/10.1007/JHEP07(2020)034