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$D^{*}$-Meson Photoproduction off the Proton Target with the Regge Contribution
New Phys.: Sae Mulli 2020; 70: 24~28
Published online January 31, 2020;
© 2020 New Physics: Sae Mulli.

Seung-il NAM1,2,3*

1Department of Physics, Pukyong National University (PKNU), Busan 48513, Korea
2Center for Extreme Nuclear Matters (CENuM), Korea University, Seoul 02841, Korea
3Asia Pacific Center for Theoretical Physics (APCTP), Pohang 37673, Korea
Correspondence to:
Received October 1, 2019; Revised October 29, 2019; Accepted October 30, 2019.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
We investigate the four individual photoproduction channels off the proton target, corresponding to the isospin single and triplet charmed baryons, $\gamma p\to D^{*0}\Lambda^+_c$ and $\gamma p\to(D^{*+}\Sigma^0_c,D^{*0}\Sigma^+_c,D^{*-}\Sigma^{++}_c)$. In this work, we estimate the unpolarized total cross sections as guidance for possible future J-PARC experiments. For this purpose, we employ the effective Lagrangian approach at the tree-level Born approximation with the $t$-channel $D$ and $D^*$ meson Reggized propagators. In addition, phenomenological form factors are taken into account for considering the spatial extension of the hadrons involved. From the numerical calculations, we observed that cross sections of tens of nanobarns for $\Lambda^+_c$ production and a few nanobarns for the $\Sigma^{++}_c$ ones, which are in the detectable range of cross sections in presently available high-energy experiments.
PACS numbers: 13.60.Rj, 13.60.-r, 13.75.Jz, 14.20.-c
Keywords: Charm production, Photoproduction, $Y_c$ baryon, $D$ meson, Regge trajectory

January 2020, 70 (1)
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