Počet záznamů: 1

Measurement of the ratio of inclusive cross sections σ(ppbar ->Z+b-quark jet)/σ(ppbar ->Z+jet) at √s=1.96TeV

  1. 1.
    0367892 - FZU-D 2013 RIV US eng J - Článek v odborném periodiku
    Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš
    Measurement of the ratio of inclusive cross sections σ(ppbar ->Z+b-quark jet)/σ(ppbar ->Z+jet) at √s=1.96TeV.
    Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 83, č. 3 (2011), "031105-1"-"031105-7" ISSN 1550-7998
    Grant CEP: GA MŠk LA08047
    Výzkumný záměr: CEZ:AV0Z10100502
    Klíčová slova: D0 * Tevatron * quark * jet
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 4.558, rok: 2011
    http://link.aps.org/doi/10.1103/PhysRevD.83.031105

    The ratio of the cross section for p (p) over bar interactions producing a Z boson and at least one b-quark jet to the inclusive Z + jet cross section is measured using 4.2 fb(-1) of p (p) over bar collisions collected with the D0 detector at the Fermilab Tevatron collider at root s = 1.96 TeV. The Z -> l(+) l- candidate events with at least one b jet are discriminated from Z + charm and light jet(s) events by a novel technique that exploits the properties of the tracks associated to the jet. The measured ratio is 0: 0193 +/- 0: 0027 for events having a jet with transverse momentum p(T) > 20 GeV and pseudorapidity vertical bar eta vertical bar <= 2.5, which is the most precise to date and is consistent with theoretical predictions.
    Trvalý link: http://hdl.handle.net/11104/0202408