English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We reinvestigated the parameter space allowing a large BR of the 4-body decayof the lighter top-squark ($\lstop$) accessible at Tevatron Run-II by imposingthe lighter CP-even Higgs boson mass ($\mlhiggs$) bound from LEP. Importantconstraints were obtained in mSUGRA as well as in the unconstrainedsupersymmetric models. Our results show that the prospect of searching thelighter top-squark via the 4-body decay mode, in particular the $\ell + n-jets+ \met$ signal, is not promising in mSUGRA due to the above bound on$\mlhiggs$. The existing bounds on $\mlstop$ from Tevatron Run-I and LEPassuming 100% BR of the loop decay of $\lstop$ are, therefore, valid to a goodapproximation. We also find that large BRs of the above 4-body decay areallowed in the unconstrained model over significant regions of parameter spacesand the possibility that this decay mode is the main discovery channel atTevatron Run-II is open. We have briefly reviewed the theoretical uncertaintiesin the calculation of $\mlhiggs$ and their consequences for the constraintsobtained by us. We have commented upon, with illustrative examples, how theabove parameter space is affected if future experiments push the Higgs bosonmass bound upward.Comment: 24 pages, 14 figures, added comments in sec.1, added 2 figures and  comments in sec.2.1, conclusion and references update

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Four-body decay of the lighter top squark constrained by the lighter<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math>-even Higgs boson mass bound

Four-body decay of the lighter top squark constrained by the lighterCP-even Higgs boson mass bound