THE PUZZLE OF THE BOTTOM QUARK PRODUCTION CROSS SECTION
نویسندگان
چکیده
منابع مشابه
The Puzzle of the Bottom Quark Production Cross Section
The production rate of bottom quarks at hadron colliders exceeds the expectations of next-to-leading order perturbative quantum chromodynamics. An additional contribution from pair-production of light gluinos, of mass 12 to 16 GeV, with two-body decays into bottom quarks and light bottom squarks, yields a differential cross section for bottom quarks in better agreement with data. The masses of ...
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It has been known for a long time that the cross section for bottom-quark b production at hadron collider energies exceeds theoretical expectations. An additional contribution from pairproduction of light gluinos g̃, of mass 12 to 16 GeV, with two-body decays into bottom quarks and light bottom squarks b̃, helps to obtain a b production rate in better agreement with data. The masses of the g̃ and ...
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The cross section for bottom quark production at fixed-target energies is calculated for a wide range of beam momenta. A detailed analysis is given for the HERA-B experiment. We consider both the order α 3 s cross section and the resummation of soft gluon corrections in all orders of QCD perturbation theory. The inclusive transverse momentum and rapidity distributions, including resummation, fo...
متن کاملA Supersymmetric Solution to the Bottom-quark Cross Section Anomaly
In this talk, I describe a supersymmetric solution to the long-standing discrepancy between the bottom-quark production cross section and predictions of perturbative quantum chromodynamics. Pair production of light gluinos, of mass 12–16 GeV, with two-body decays into bottom quarks and bottom squarks, of mass 2–5.5 GeV, yields the correct normalizations and shapes of the measured bottom-quark d...
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The production rate for top quarks at the Fermilab Tevatron is presented using the exact order α 3 s corrected cross section and the resummation of the leading soft gluon corrections in all orders of perturbation theory.
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2003
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x03014599