Cross-sections for H production with the top quark Mass

Andrej Saibel (Deutsches Elektronen Synchrotron, Hamburg, Germany) ; Sven-Olaf Moch (II. Institut für Theoretische Physik, Universität Hamburg, Hamburg, Germany) ; Maria Aldaya Martin (Deutsches Elektronen Synchrotron, Hamburg, Germany)

We study the impact of the top quark mass renormalized in the MS scheme on the tt¯H production cross-sections as an alternative to theory predictions with the conventionally used pole mass scheme. The differential cross-sections at next-to-leading order in perturbative QCD with stable top quarks show a moderate decrease in scale uncertainties for the MS mass renormalization scheme compared to the on-shell one. The shape of the differential distributions is not affected much, the largest differences being observed in the invariant mass distributions of the tt¯ and the tt¯H systems.

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      "surname": "Aldaya Martin", 
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      "source": "Elsevier", 
      "value": "We study the impact of the top quark mass renormalized in the <math><mover><mrow><mtext>MS</mtext></mrow><mo>\u203e</mo></mover></math> scheme on the <math><mtext>t</mtext><mover><mrow><mtext>t</mtext></mrow><mrow><mo>\u00af</mo></mrow></mover></math>H production cross-sections as an alternative to theory predictions with the conventionally used pole mass scheme. The differential cross-sections at next-to-leading order in perturbative QCD with stable top quarks show a moderate decrease in scale uncertainties for the <math><mover><mrow><mtext>MS</mtext></mrow><mo>\u203e</mo></mover></math> mass renormalization scheme compared to the on-shell one. The shape of the differential distributions is not affected much, the largest differences being observed in the invariant mass distributions of the <math><mtext>t</mtext><mover><mrow><mtext>t</mtext></mrow><mrow><mo>\u00af</mo></mrow></mover></math> and the <math><mtext>t</mtext><mover><mrow><mtext>t</mtext></mrow><mrow><mo>\u00af</mo></mrow></mover></math>H systems."
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Published on:
26 May 2022
Publisher:
Elsevier
Published in:
Physics Letters B , Volume 832 C (2022)

Article ID: 137195
DOI:
https://doi.org/10.1016/j.physletb.2022.137195
Copyrights:
The Authors
Licence:
CC-BY-3.0

Fulltext files: