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$Z$ boson production in bottom-quark fusion: a study of $b$-mass effects beyond leading order

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arxiv 1803.10248 v3 pith:Q2WV27ES submitted 2018-03-27 hep-ph hep-ex

classification hep-phhep-ex
keywords fusionproductionbosonbottombottom-quarkcomputationorderscheme
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We compute the total cross-section for $Z$ boson production in bottom-quark fusion, applying to this case the method we previously used for Higgs production in bottom fusion. Namely, we match, through the FONLL procedure, the next-to-next-to-leading-log five-flavor scheme result, in which the $b$~quark is treated as a massless parton, with the next-to-leading-order $\order{\alpha_s^3}$ four-flavor scheme computation in which bottom is treated as a massive final-state particle. Our computation provides a test-case for the discussion of issues of scale dependence and treatment of heavy quarks, which we discuss in light of our results.

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Cited by 1 Pith paper

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  1. V and heavy flavour production: status and recent theoretical developments

    hep-ph 2019-08 conditional novelty 1.0 of 10

    A review talk on four-flavour versus five-flavour scheme matching (multi-jet merging and FONLL) for vector boson plus heavy flavour production at the LHC.

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