Next-to-next-to-leading order O ( α s 4 ) results for heavy quark pair production in quark-antiquark collisions: The one-loop squared contributions

We calculate the next-to-next-to-leading order O({alpha}{sub s}{sup 4}) one-loop squared corrections to the production of heavy quark pairs in quark-antiquark annihilations. These are part of the next-to-next-to-leading order O({alpha}{sub s}{sup 4}) radiative QCD corrections to this process. Our re...

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Veröffentlicht in:	Physical review. D, Particles and fields Particles and fields, 2008-05, Vol.77 (9), Article 094011
Hauptverfasser:	Körner, J. G., Merebashvili, Z., Rogal, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	AMPLITUDES ANNIHILATION B QUARKS C QUARKS COLLISIONS COMPACTS COMPUTERIZED SIMULATION CORRECTIONS FACTORIZATION MASS PAIR PRODUCTION PARTICLE PRODUCTION PHYSICS OF ELEMENTARY PARTICLES AND FIELDS QUANTUM CHROMODYNAMICS QUARK-ANTIQUARK INTERACTIONS T QUARKS
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container_title	Physical review. D, Particles and fields
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creator	Körner, J. G. Merebashvili, Z. Rogal, M.
description	We calculate the next-to-next-to-leading order O({alpha}{sub s}{sup 4}) one-loop squared corrections to the production of heavy quark pairs in quark-antiquark annihilations. These are part of the next-to-next-to-leading order O({alpha}{sub s}{sup 4}) radiative QCD corrections to this process. Our results, with the full mass dependence retained, are presented in a closed and very compact form, in the dimensional regularization scheme. We have found very intriguing factorization properties for the finite part of the amplitudes.
doi_str_mv	10.1103/PhysRevD.77.094011
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D, Particles and fields</jtitle><date>2008-05-01</date><risdate>2008</risdate><volume>77</volume><issue>9</issue><artnum>094011</artnum><issn>1550-7998</issn><issn>0556-2821</issn><eissn>1550-2368</eissn><eissn>1089-4918</eissn><abstract>We calculate the next-to-next-to-leading order O({alpha}{sub s}{sup 4}) one-loop squared corrections to the production of heavy quark pairs in quark-antiquark annihilations. These are part of the next-to-next-to-leading order O({alpha}{sub s}{sup 4}) radiative QCD corrections to this process. Our results, with the full mass dependence retained, are presented in a closed and very compact form, in the dimensional regularization scheme. We have found very intriguing factorization properties for the finite part of the amplitudes.</abstract><cop>United States</cop><doi>10.1103/PhysRevD.77.094011</doi></addata></record>
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subjects	AMPLITUDES ANNIHILATION B QUARKS C QUARKS COLLISIONS COMPACTS COMPUTERIZED SIMULATION CORRECTIONS FACTORIZATION MASS PAIR PRODUCTION PARTICLE PRODUCTION PHYSICS OF ELEMENTARY PARTICLES AND FIELDS QUANTUM CHROMODYNAMICS QUARK-ANTIQUARK INTERACTIONS T QUARKS
title	Next-to-next-to-leading order O ( α s 4 ) results for heavy quark pair production in quark-antiquark collisions: The one-loop squared contributions
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