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تسجيل مستخدم جديدBottom Production
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We review the prospects for bottom production physics at the LHC.
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Background: A resonance has been observed by the ANDY Collaboration at the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory in Cu+Au collisions at center-of-mass energy $sqrt{s} = 200$ GeV and at forward rapidity with an average mass
of 18.15 GeV. The Collaboration suggests that it is a $b overline b b overline b$ tetraquark state decaying to two $Upsilon$(1S) states, each measured through the $Upsilon rightarrow ggg$ channel. Purpose: Their suggestion is investigated assuming that the two $Upsilon$ states are produced through the materialization of a $|uud boverline b b overline b rangle$ Fock state in the projectile. Methods: The $Upsilon$ pair mass and rapidity distributions arising from such a state are calculated. The production of an $X_b(b overline b b overline b)$ tetraquark state from the same Fock configuration is also investigated. The dependence on bottom quark mass and their transverse momentum range is also studied. Results: It is found that double $Upsilon$ production from these $|uud b overline b b overline b rangle$ states peak in the rapidity range of the ANDY detector. The $Upsilon$ pair and $X_b$ masses are, however, higher than the mass reported by the ANDY Collaboration. Conclusions: The results obtained from these calculations are incompatible with the ANDY result. They are, however, compatible with previous predictions of $b overline b b overline b$ tetraquark masses.
We study the production of a Higgs boson in association with bottom quarks in hadronic collisions, and present phenomenological predictions relevant to the 13 TeV LHC. Our results are accurate to the next-to-leading order in QCD, and matched to parto
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Existences of vector-like quarks (VLQs) are predicted in many new physics scenarios beyond the Standard Model (SM). We study the possibility of detecting the vector-like bottom quark (VLQ-$B$) being the $SU(2)$ singlet with electric charge $-1/3$ at
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We review the present status of the QCD corrected cross sections and kinematic distributions for the production of a Higgs boson in association with bottom quarks at the Fermilab Tevatron and CERN Large Hadron Collider. Results are presented for the
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