<p>We present a comprehensive theoretical assessment of the masses of possible baryonic configurations characterized by the presence of two heavy top quarks, including <InlineEquation ID="IEq1"> <EquationSource Format="TEX">$\Xi _{ttu}$</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi mathvariant="normal">Ξ</mi> <mrow> <mi mathvariant="italic">ttu</mi> </mrow> </msub> </math></EquationSource> </InlineEquation>, <InlineEquation ID="IEq2"> <EquationSource Format="TEX">$\Xi _{ttd}$</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi mathvariant="normal">Ξ</mi> <mrow> <mi mathvariant="italic">ttd</mi> </mrow> </msub> </math></EquationSource> </InlineEquation>, <InlineEquation ID="IEq3"> <EquationSource Format="TEX">$\Omega _{tts}$</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi mathvariant="normal">Ω</mi> <mrow> <mi mathvariant="italic">tts</mi> </mrow> </msub> </math></EquationSource> </InlineEquation>, <InlineEquation ID="IEq4"> <EquationSource Format="TEX">$\Omega _{ttc}$</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi mathvariant="normal">Ω</mi> <mrow> <mi mathvariant="italic">ttc</mi> </mrow> </msub> </math></EquationSource> </InlineEquation>, and <InlineEquation ID="IEq5"> <EquationSource Format="TEX">$\Omega _{ttb}$</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi mathvariant="normal">Ω</mi> <mrow> <mi mathvariant="italic">ttb</mi> </mrow> </msub> </math></EquationSource> </InlineEquation> systems. This analysis is rigorously executed within the specialized framework of two-point <InlineEquation ID="IEq6"> <EquationSource Format="TEX">$\textrm{QCD}$</EquationSource> <EquationSource Format="MATHML"><math> <mtext>QCD</mtext> </math></EquationSource> </InlineEquation> sum rules, focusing on their predicted ground state masses. Our interest in these systems arises from recent CMS and ATLAS reports indicating a pseudoscalar excess close to <InlineEquation ID="IEq7"> <EquationSource Format="TEX">$t\bar{t}$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>t</mi> <mover accent="true"> <mrow> <mi>t</mi> </mrow> <mrow> <mo stretchy="false">¯</mo> </mrow> </mover> </mrow> </math></EquationSource> </InlineEquation> threshold. Our evaluation incorporates both perturbative terms and nonperturbative effects, including condensate contributions up to dimension eight. Based on our results, the extracted central masses for all channels are slightly above the sum of the constituent quark masses, which is consistent with the inherent uncertainties of the method. These quantitative predictions provide a useful first-principle theoretical reference, which may help future experimental searches for such heavy configurations at the LHC and inform sensitivity studies at next-generation facilities such as the FCC.</p>

Examining Possible Doubly Topped Baryon Configurations

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发表日期：

2026年7月28日

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M. Shekari Tousi,
K. Azizi

摘要

We present a comprehensive theoretical assessment of the masses of possible baryonic configurations characterized by the presence of two heavy top quarks, including $\Xi _{ttu}$ $Ξ_{ttu}$ , $\Xi _{ttd}$ $Ξ_{ttd}$ , $\Omega _{tts}$ $Ω_{tts}$ , $\Omega _{ttc}$ $Ω_{ttc}$ , and $\Omega _{ttb}$ $Ω_{ttb}$ systems. This analysis is rigorously executed within the specialized framework of two-point $\textrm{QCD}$ $QCD$ sum rules, focusing on their predicted ground state masses. Our interest in these systems arises from recent CMS and ATLAS reports indicating a pseudoscalar excess close to $t\bar{t}$ $t \bar{t}$ threshold. Our evaluation incorporates both perturbative terms and nonperturbative effects, including condensate contributions up to dimension eight. Based on our results, the extracted central masses for all channels are slightly above the sum of the constituent quark masses, which is consistent with the inherent uncertainties of the method. These quantitative predictions provide a useful first-principle theoretical reference, which may help future experimental searches for such heavy configurations at the LHC and inform sensitivity studies at next-generation facilities such as the FCC.