TY - JOUR

T1 - Higgs-boson production via bottom-quark fusion

AU - Maltoni, F.

AU - Sullivan, Z.

AU - Willenbrock, S.

PY - 2003

Y1 - 2003

N2 - Higgs bosons with enhanced coupling to bottom quarks are copiously produced at hadron colliders via [Formula Presented] where the initial b quarks reside in the proton sea. We reexamine the calculation of the next-to-leading-order cross section for this process and argue that the appropriate factorization scale for the b distribution functions is approximately [Formula Presented] rather than [Formula Presented] as had been previously assumed. This greatly improves the convergence of the perturbation series, and yields a result with mild factorization-scale dependence. We also show that the leading-order calculation of [Formula Presented] integrated over the momenta of the final-state particles, is very sensitive to the factorization and renormalization scales. For scales of order [Formula Presented] the [Formula Presented] cross section is comparable to that of [Formula Presented] in contrast with the order-of-magnitude discrepancy between these two calculations for the scale [Formula Presented] The result we obtain improves the prospects for Higgs-boson discovery at hadron colliders for large values of [Formula Presented].

AB - Higgs bosons with enhanced coupling to bottom quarks are copiously produced at hadron colliders via [Formula Presented] where the initial b quarks reside in the proton sea. We reexamine the calculation of the next-to-leading-order cross section for this process and argue that the appropriate factorization scale for the b distribution functions is approximately [Formula Presented] rather than [Formula Presented] as had been previously assumed. This greatly improves the convergence of the perturbation series, and yields a result with mild factorization-scale dependence. We also show that the leading-order calculation of [Formula Presented] integrated over the momenta of the final-state particles, is very sensitive to the factorization and renormalization scales. For scales of order [Formula Presented] the [Formula Presented] cross section is comparable to that of [Formula Presented] in contrast with the order-of-magnitude discrepancy between these two calculations for the scale [Formula Presented] The result we obtain improves the prospects for Higgs-boson discovery at hadron colliders for large values of [Formula Presented].

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U2 - 10.1103/PhysRevD.67.093005

DO - 10.1103/PhysRevD.67.093005

M3 - Article

AN - SCOPUS:0038236480

VL - 67

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

SN - 1550-7998

IS - 9

ER -