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Search for the pair production of scalar top quarks in the acoplanar charm jet final state in collisions at
Se ha realizado una búsqueda de la producción de pares de quarks escalares superiores, t∼, en 360 pb−1 de datos de colisiones pp¯ a una energía del centro de masa de 1,96 TeV, recopilada por el detector DØ en el colisionador Fermilab Tevatron. El modo de decaimiento t considerado es t~→cχ~10, donde χ~10 es la partícula supersimétrica más ligera. Por lo tanto, la topología analizada consiste en un par de chorros acoplanares de sabor fuerte a los que les falta energía transversal. Los datos y la expectativa del modelo estándar están de acuerdo, y se ha determinado un dominio de exclusión de C.L. del 95% en el plano (mt~, mχ ~10), extendiendo el dominio excluido por experimentos anteriores.
Une recherche de la production de paires de quarks supérieurs scalaires, t∼, a été effectuée dans 360 pb−1 de données de collisions pp¯ à une énergie de centre de masse de 1,96 TeV, collectées par le détecteur DØ au collisionneur Fermilab Tevatron. Le mode de décroissance t∼ considéré est t∼→cχ∼10, où χ∼10 est la particule supersymétrique la plus légère. La topologie analysée consiste donc en une paire de jets de saveurs lourdes acoplanaires à énergie transverse manquante. Les données et les attentes du modèle standard sont en accord, et un domaine d'exclusion de 95% C.L. dans le plan (mt∼,mχ∼10) a été déterminé, étendant le domaine exclu par les expériences précédentes.
A search for the pair production of scalar top quarks, t˜, has been performed in 360 pb−1 of data from pp¯ collisions at a center-of-mass energy of 1.96 TeV, collected by the DØ detector at the Fermilab Tevatron collider. The t˜ decay mode considered is t˜→cχ˜10, where χ˜10 is the lightest supersymmetric particle. The topology analyzed therefore consists of a pair of acoplanar heavy-flavor jets with missing transverse energy. The data and standard model expectation are in agreement, and a 95% C.L. exclusion domain in the (mt˜,mχ˜10) plane has been determined, extending the domain excluded by previous experiments.
تم إجراء بحث عن إنتاج الزوج من الكواركات العلوية العددية، t، في 360 pb-1 من البيانات من الاصطدامات pp عند طاقة مركز الكتلة البالغة 1.96 تيرا إلكترون فولت، والتي تم جمعها بواسطة كاشف DØ في مصادم Fermilab Tevatron. وضع الاضمحلال الذي تم النظر فيه→ هو10، حيث 10 هو أخف جسيم فائق التناظر. وبالتالي، فإن الطوبولوجيا التي تم تحليلها تتكون من زوج من نفاثات النكهة الثقيلة المستوية مع طاقة مستعرضة مفقودة. تتوافق البيانات وتوقعات النموذج القياسي، وقد تم تحديد مجال استبعاد CL بنسبة 95 ٪ في مستوى (mt?, mχ? 10)، مما يوسع النطاق المستبعد من التجارب السابقة.
- Joint Institute for Nuclear Research Russian Federation
- Michigan State University United States
- Florida State University United States
- Radboud University Nijmegen Netherlands
- Oklahoma City University United States
Nuclear and High Energy Physics, Pair production, History, Nuclear physics, Charm quark, Geometry, Search for Quark-Gluon Plasma in Heavy-Ion Collisions, Electron, Lepton, Jet (fluid), FOS: Mathematics, Charm (quantum number), Particle Physics and High-Energy Collider Experiments, High-Energy Collider, Scalar (mathematics), Physics, Hadron Physics and QCD, Missing energy, Particle physics, Standard Model (mathematical formulation), Top quark, Collider Detector at Fermilab, Tevatron, Gauge (firearms), Physics and Astronomy, Large Hadron Collider, Archaeology, Fermilab, Physical Sciences, Quark, Thermodynamics, Mathematics, Collider
Nuclear and High Energy Physics, Pair production, History, Nuclear physics, Charm quark, Geometry, Search for Quark-Gluon Plasma in Heavy-Ion Collisions, Electron, Lepton, Jet (fluid), FOS: Mathematics, Charm (quantum number), Particle Physics and High-Energy Collider Experiments, High-Energy Collider, Scalar (mathematics), Physics, Hadron Physics and QCD, Missing energy, Particle physics, Standard Model (mathematical formulation), Top quark, Collider Detector at Fermilab, Tevatron, Gauge (firearms), Physics and Astronomy, Large Hadron Collider, Archaeology, Fermilab, Physical Sciences, Quark, Thermodynamics, Mathematics, Collider
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