منابع مشابه
Search for Heavy Leptons at Hadron Colliders
Four models are considered which contain heavy leptons beyond the three families of the standard model. Two are fourth-generation extensions of the standard model in which the right-handed heavy leptons are either isosinglets or in an isodoublet; the other two are motivated by the aspon model of CP violation. In all these models, the heavy neutrino can either be heavier than, or comparable in m...
متن کاملHeavy-quark production at large rapidities at hadron colliders
We investigate heavy-quark production as a function of the rapidity interval between two heavy quarks in hadronic collisions. We compare the results relevant to bottom production at the Tevatron and at LHC, obtained using exact leading-order and NLO pQCD production, as well as the contribution of the 4b channel with and without the addition of BFKL gluon radiation.
متن کاملAn investigation of triply heavy baryon production at hadron colliders
The triply heavy baryons have a rather diverse mass range. While some of them possess considerable production rates at existing facilities, others need to be produced at future high energy colliders. Here we study the direct fragmentation production of the Ωccc and Ωbbb baryons as the prototypes of triply heavy baryons at the hadron colliders with different √ s. We present and compare the trans...
متن کاملCharge Asymmetry of Heavy Quarks at Hadron Colliders
A sizeable diierence in the diierential production cross section of top and antitop quarks, respectively, is predicted for hadronically produced heavy quarks. It is of order s and arises from the interference between charge odd and even amplitudes respectively. For the TEVATRON it amounts up to 15% for the diierential distribution in suitable chosen kinematical regions. The resulting integrated...
متن کاملAssociated Higgs production with heavy quark pairs at hadron colliders
The reactions pp̄/pp → tt̄H +X represent important channels in the search for the Standard Model Higgs boson at the Tevatron and the LHC. In the leading perturbative order the cross sections suffer from severe (renormalization and factorization) scale uncertainties. The next-to-leading order QCD corrections stabilize the cross sections considerably. The calculation of these corrections is briefly...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2011
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.84.096001