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Search for bosonic stop decays in R-parity violating supersymmetry in e^+p collisions at HERA.

H1 Collaboration, The and Henderson, Rob C. W. and Sloan, T. and Aktas, A. (2004) Search for bosonic stop decays in R-parity violating supersymmetry in e^+p collisions at HERA. Physics Letters B, 599 (3-4). pp. 159-172. ISSN 0370-2693

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Abstract

A search for scalar top quarks in R-parity violating supersymmetry is performed in e+p collisions at HERA using the H1 detector. The data, taken at and 301 GeV, correspond to an integrated luminosity of . The resonant production of scalar top quarks in positron quark fusion via an R-parity violating Yukawa coupling λ′ is considered with the subsequent bosonic stop decay . The R-parity violating decay of the sbottom quark and leptonic and hadronic W decays are considered. No evidence for stop production is found in the search for bosonic stop decays nor in a search for the direct R-parity violating decay . Mass dependent limits on λ′ are obtained in the framework of the minimal supersymmetric Standard Model. Stop quarks with masses up to can be excluded at the 95% confidence level for a Yukawa coupling of electromagnetic strength.

Item Type: Article
Journal or Publication Title: Physics Letters B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23992
Deposited By: ep_ss_importer
Deposited On: 25 Feb 2009 13:48
Refereed?: Yes
Published?: Published
Last Modified: 10 Jun 2013 15:51
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23992

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