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

Nenhuma Miniatura disponível

Data

2005-04-29

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Tipo

Artigo

Direito de acesso

Resumo

Using the data collected with the DO detector at √ s = 1-96 TeV, for integrated luminosities of about 180 pb-1, we have measured the ratio of inclusive cross sections for pp̄ → Z + b jet to pp̄ → Z + jet production. The inclusive Z + b-jet reaction is an important background to searches for the Higgs boson in associated ZH production at the Fermilab Tevatron collider. Our measurement is the first of its kind, and relies on the Z → e+e- and Z → μ+ μ- modes. The combined measurement of the ratio yields 0.021 ± 0.005 for hadronic jets with transverse momenta pT > 20 GeV/c and pseudorapidities |η| < 2.5, consistent with next-to-leading-order predictions of the standard model. © 2005 The American Physical Society.

Descrição

Palavras-chave

Idioma

Inglês

Como citar

Physical Review Letters, v. 94, n. 16, 2005.

Itens relacionados

Financiadores