0000000000768979

AUTHOR

J. B. Singh

0000-0001-9029-2462

showing 3 related works from this author

Search for Leptoquark Pairs Decaying intoνν+jetsinpp¯Collisions ats=1.8TeV

2002

We present the results of a search for leptoquark (LQ) pairs in (85.2+/-3.7) pb(-1) of pp* collider data collected by the D0 experiment at the Fermilab Tevatron. We observe no evidence for leptoquark production and set a limit on sigma(pp*-->LQLQ-->nunu+jets) as a function of the mass of the leptoquark (m(LQ)). Assuming the decay LQ-->nuq, we exclude scalar leptoquarks for m(LQ) < 98 GeV/c(2), and vector leptoquarks for m(LQ) < 200 GeV/c(2) and coupling which produces the minimum cross section, at a 95% confidence level.

PhysicsParticle physics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyScalar (mathematics)TevatronGeneral Physics and AstronomySigmaD0 experiment7. Clean energy01 natural scienceslaw.inventionNuclear physicslaw0103 physical sciencesHigh Energy Physics::ExperimentLeptoquarkFermilab010306 general physicsColliderPhysical Review Letters
researchProduct

Subjet multiplicity of gluon and quark jets reconstructed with thek⊥algorithm inpp¯collisions

2002

The D empty set Collaboration has studied for the first time the properties of hadron-collider jets reconstructed with a successive-combination algorithm based on relative transverse momenta (k(perpendicular to)) of energy clusters. Using the standard value D = 1.0 of the jet-separation parameter in the k(perpendicular to) algorithm, we find that the p(T) of such jets is higher than the E-T of matched jets reconstructed with cones of radius R = 0.7, by about 5 (8) GeV at p(T) approximate to90 (240) GeV. To examine internal jet structure, the k(perpendicular to) algorithm is applied within D = 0.5 jets to resolve any subjets. The multiplicity of subjets in jet samples at roots = 1800 GeV and…

QuarkPhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaMultiplicity (mathematics)RadiusJet (particle physics)Deep inelastic scattering01 natural sciencesGluonNuclear physics0103 physical sciencesHigh Energy Physics::ExperimentResummationNuclear Experiment010306 general physicsAlgorithmEvent generatorPhysical Review D
researchProduct

The Belle II Physics Book

2019

cd. autorów: L. Cao48,‡, G. Caria145,‡, G. Casarosa57,‡, C. Cecchi56,‡,D. Cˇ ervenkov10,‡,M.-C. Chang22,‡, P. Chang92,‡, R. Cheaib146,‡, V. Chekelian83,‡, Y. Chen154,‡, B. G. Cheon28,‡, K. Chilikin77,‡, K. Cho70,‡, J. Choi14,‡, S.-K. Choi27,‡, S. Choudhury35,‡, D. Cinabro170,‡, L. M. Cremaldi146,‡, D. Cuesta47,‡, S. Cunliffe16,‡, N. Dash33,‡, E. de la Cruz Burelo9,‡, E. de Lucia52,‡, G. De Nardo54,‡, †Editor. ‡Belle II Collaborator. §Theory or external contributing author. M. De Nuccio16,‡, G. De Pietro59,‡, A. De Yta Hernandez9,‡, B. Deschamps129,‡, M. Destefanis60,‡, S. Dey116,‡, F.Di Capua54,‡, S.Di Carlo75,‡, J. Dingfelder129,‡, Z. Doležal10,‡, I. Domínguez Jiménez125,‡, T.V. Dong30,26,…

B: semileptonic decayPhysics beyond the Standard ModelHadronelectroproduction [charmonium]General Physics and AstronomyComputingMilieux_LEGALASPECTSOFCOMPUTINGB: radiative decayannihilation [electron positron]7. Clean energy01 natural sciencescharmonium: electroproductionB physicsHigh Energy Physics - Experimentlaw.inventionHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)Z'law[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Charm (quantum number)dark sector searchesPhysicslifetimeradiative decay [B]doublet [Higgs particle]new physicsPhysicsHigh Energy Physics - Lattice (hep-lat)ddc:530Electroweak interactionlepton: flavor: violationhep-phParticle Physics - LatticeMonte Carlo [numerical calculations]electron positron: colliding beamsQuarkoniumasymmetry: CPquarkonium physicselectroweak interaction: penguinHigh Energy Physics - PhenomenologyImproved performancecolliding beams [electron positron]CP violationinterfaceelectroproduction [quarkonium]electroweak precision measurementsnumerical calculations: Monte CarlophysicsParticle Physics - ExperimentperformanceParticle physicsflavor: violation [lepton]reviewhep-latFOS: Physical sciencesBELLEHigh Energy Physics - Experiment; High Energy Physics - Experiment; High Energy Physics - Lattice; High Energy Physics - Phenomenologyelectron positron: annihilationquarkonium: electroproductionCP [asymmetry]E(6)Higgs particle: doubletmixing [D0 anti-D0]Theoretical physicsCP: violation: time dependenceHigh Energy Physics - LatticeKEK-B0103 physical sciencesquantum chromodynamicshidden sector [photon]ddc:530composite010306 general physicsColliderParticle Physics - PhenomenologyHigh Energy Physics - Experiment; High Energy Physics - Lattice; High Energy Physics - Phenomenologyphoton: hidden sectorhep-ex010308 nuclear & particles physics[PHYS.HLAT]Physics [physics]/High Energy Physics - Lattice [hep-lat]C50 Other topics in experimental particle physicsviolation: time dependence [CP]D0 anti-D0: mixingB2TiP530 PhysikExperimental physicsB: leptonic decayCKM matrix[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]penguin [electroweak interaction]leptonic decay [B]semileptonic decay [B]charmparticle identificationexperimental results
researchProduct