The production of the doubly charmed baryon in deeply inelastic ep scattering at the Large Hadron Electron Collider

Sun, Z.; Wu, Xing-Gang

doi:10.1007/jhep07(2020)034

Cited by 7 publications

(4 citation statements)

References 87 publications

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“…Normally, production of the baryon can be treated in two steps [14,37,43,53]. The first is by producing a bound state, which is also called a diquark , with representing the color-and spin-combinations.…”

Section: Calculation Technologymentioning

confidence: 99%

“…Additionally, a light quark q has the ability to produce gluons, which can be used to construct the component with . These contributions are at the same level because a light quark may produce gluons easily, that is, [53]. We can then take the following approximation:…”

Section: I Jkmentioning

confidence: 99%

“…Meanwhile, as pointed out in Refs. [26,44,45,53], the importance of the color 6 and the color states are equal.…”

Section: I Jkmentioning

confidence: 99%

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Investigation of Z-boson decay into and baryons within the NRQCD factorization approach*

Liu

Tian

2023

Chinese Phys. C

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The $Z$-boson decay provides good opportunity in searching for $\Xi_{bQ}$ baryon due to the large quantity of its events can be collected at high energy colliders. In this paper, we performed a complete investigation of the indirect production of the $\Xi_{bc}$ and $\Xi_{bb}$ baryon via $Z$-boson decay processes $Z\to \Xi_{bQ}+\bar b +\bar Q$ with $Q= (c,b)$ quark under NRQCD factorization approach. After considering the contribution from the diquark states $\langle bc\rangle[^3S_1]_{\bar 3/6}$, $\langle bc\rangle[^1S_0]_{\bar 3/6}$, $\langle bb\rangle [^1S_0]_6$ and $\langle bb\rangle[^3S_1]_{\bar 3}$, the calculated branching fractions are ${\cal B}(Z\to\Xi_{bc}+X) = 3.595\times 10^{-5}$ and ${\cal B}(Z\to\Xi_{bb}+X) = 1.213\times 10^{-6}$. Forthermore, the $\Xi_{bc}$ and $\Xi_{bb}$ production events are predicted to be at the $10^4$ and $10^3$ order level on the LHC collider, $10^7$ and $10^6$ order level for the CEPC collider. Finally, we have estimated the production ratio for $Z\to c\bar c(b\bar b)\to\Xi^{+,0}_{bc}+X $ with $\Xi^{+,0}_{bc} \to \Lambda^+_c$ in $Z$-boson decay, i.e. ${\cal R}(Z\to c\bar c\to\Xi^{+,0}_{bc}+X) \sim {\cal O}(10^{-6})$ and ${\cal R}(Z\to b\bar b\to\Xi^{+,0}_{bc}+X) \sim {\cal O}(10^{-5})$, respectively. Finally, we present the differential decay widths of $\Xi_{bc}$ and $\Xi_{bb}$ with respect to $s_{23}$ and $z$ distributions, and analyze the uncertainties. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd.

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Section: Calculation Technologymentioning

confidence: 99%

Section: I Jkmentioning

confidence: 99%

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Investigation of Z-boson decay into and baryons within the NRQCD factorization approach*

Liu

Tian

2023

Chinese Phys. C

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“…In deriving H µν as well as its contraction with L µν , the Mathematica-Fortran package MALT@FDC that has been employed to deal with several heavy quarkonium related SIDIS processes [2,20,21,30] is utilized.…”

Section: õ´ õµmentioning

confidence: 99%

$Υ$ electroproduction at HERA, EIC, and LHeC within the nonrelativistic QCD framework

Sun

2020

Preprint

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Based on the nonrelativistic QCD framework, we carry out the study of the Υ production in the semi-inclusive deeply inelastic electron-proton scattering (SIDIS) at HERA, EIC, and LHeC, respectively, with the main aim of assessing the viability of observing the Υ electroproductions at the three colliders. The color-octet (CO) contributions are found to exert crucial effect on both the integrated and differential cross sections, serving to further establish the significance of the CO mechanism. By setting the kinematic cuts to p 2 t,Υ > 1 GeV 2 , W > 50 GeV, 2 < Q 2 < 100 GeV 2 , and 0.3 < z < 0.9, only quite few electroproduced Υ events can be generated by HERA, partially accounting for its lack of measurement on the Υ electroproduction. However, under the same cut conditions, the EIC and the LHeC can accumulate about 8.7 × 10 2 and 3.7 × 10 4 reconstructed Υ events in one operation year, respectively, which manifestly indicates the prospect of detecting the Υ related SIDIS processes at the two forthcoming ep(eA) colliders.

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Photoproduction of P-wave doubly charmed baryon at future e+e− collider

Zhan,

Wu,

Zheng

2023

J. High Energ. Phys.

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The photoproduction of P-wave doubly charmed baryon (Ξcc) is investigated in the context of future high-energy and high-luminosity e+e− colliders. The direct photoproduction via the sub-process $$ \gamma +\gamma \to {\Xi}_{cc}+\overline{c}+\overline{c} $$ γ + γ → Ξ cc + c ¯ + c ¯ and the resolved channel $$ \gamma +g\to {\Xi}_{cc}+\overline{c}+\overline{c} $$ γ + g → Ξ cc + c ¯ + c ¯ are considered. Within the framework of non-relativistic QCD, the calculation encompasses four P-wave (cc)-diquark configurations: $$ {(cc)}_{\overline{\textbf{3}}} $$ cc 3 ¯ [1P1], (cc)6[3P0], (cc)6[3P1] and (cc)6[3P2]. The two S-wave states, $$ {(cc)}_{\overline{\textbf{3}}} $$ cc 3 ¯ [3S1] and (cc)6[1S0], are also included for comparison. The cross sections, as well as the differential distributions involving transverse momentum, rapidity, and angular variables, have been computed. Numerical results reveal that the resolved photoproduction process plays a significant role and can provide dominant contributions. The photoproduction rate of the P-wave Ξcc is approximately one order of magnitude lower than that of the S-wave.

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The production of the doubly charmed baryon in deeply inelastic ep scattering at the Large Hadron Electron Collider

Cited by 7 publications

References 87 publications

Investigation of Z-boson decay into and baryons within the NRQCD factorization approach*

Investigation of Z-boson decay into and baryons within the NRQCD factorization approach*

$Υ$ electroproduction at HERA, EIC, and LHeC within the nonrelativistic QCD framework

Photoproduction of P-wave doubly charmed baryon at future e+e− collider

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