Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655332
Title: Leptoquark production at next-to-leading order
Author: Hammett, Jason
ISNI:       0000 0004 5363 7830
Awarding Body: University of Southampton
Current Institution: University of Southampton
Date of Award: 2014
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Abstract:
In this thesis we study the effective leptoquark model of Buchm�uller, R�uckl and Wyler, focusing on a particular type of scalar (R2) and vector (U1) leptoquark. The primary aim is to perform the calculations for leptoquark production at next-to-leading order (NLO) to establish the importance of the NLO contributions and in addition to this to determine how effective the narrow-width-approximation (NWA) is at NLO. For both the scalar and vector leptoquarks it is found that the NLO contributions are large, with the largest corrections occurring to the vector leptoquark calculations. For the scalar leptoquark it is found that the NWA provides a good approximation for determining the resonant peak, however the NWA is not as effective for the vector leptoquark - where large differences are observed at NLO. For both the scalar and vector leptoquarks it is found that there are large contributions away from the resonant peak, which are missing from the NWA results, and these make a significant difference to the total cross-section.
Supervisor: Ross, Douglas Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.655332  DOI: Not available
Keywords: QC Physics
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