Search for Scalar Top Quarks and Higgsino-Like Neutralinos SUSY Hunting With a “Soft” Lepton at the LHC /

This book reports a search for theoretically natural supersymmetry (SUSY) at the Large Hadron Collider (LHC). The data collected with the ATLAS detector in 2012 corresponding to 20 /fb of an integrated luminosity have been analyzed for stop pair production in proton–proton collisions at a center-of-...

Πλήρης περιγραφή

Λεπτομέρειες βιβλιογραφικής εγγραφής
Κύριος συγγραφέας: Nobe, Takuya (Συγγραφέας)
Συγγραφή απο Οργανισμό/Αρχή: SpringerLink (Online service)
Μορφή: Ηλεκτρονική πηγή Ηλ. βιβλίο
Γλώσσα:English
Έκδοση: Singapore : Springer Singapore : Imprint: Springer, 2016.
Έκδοση:1st ed. 2016.
Σειρά:Springer Theses, Recognizing Outstanding Ph.D. Research,
Θέματα:
Διαθέσιμο Online:Full Text via HEAL-Link
LEADER 03508nam a22004815i 4500
001 978-981-10-0003-4
003 DE-He213
005 20151202021158.0
007 cr nn 008mamaa
008 151130s2016 si | s |||| 0|eng d
020 |a 9789811000034  |9 978-981-10-0003-4 
024 7 |a 10.1007/978-981-10-0003-4  |2 doi 
040 |d GrThAP 
050 4 |a QC770-798 
072 7 |a PHP  |2 bicssc 
072 7 |a SCI051000  |2 bisacsh 
082 0 4 |a 539.73  |2 23 
100 1 |a Nobe, Takuya.  |e author. 
245 1 0 |a Search for Scalar Top Quarks and Higgsino-Like Neutralinos  |h [electronic resource] :  |b SUSY Hunting With a “Soft” Lepton at the LHC /  |c by Takuya Nobe. 
250 |a 1st ed. 2016. 
264 1 |a Singapore :  |b Springer Singapore :  |b Imprint: Springer,  |c 2016. 
300 |a XII, 224 p. 122 illus., 19 illus. in color.  |b online resource. 
336 |a text  |b txt  |2 rdacontent 
337 |a computer  |b c  |2 rdamedia 
338 |a online resource  |b cr  |2 rdacarrier 
347 |a text file  |b PDF  |2 rda 
490 1 |a Springer Theses, Recognizing Outstanding Ph.D. Research,  |x 2190-5053 
505 0 |a Introduction -- The LHC And The ATLAS Experiment -- Data And Monte Carlo Simulation -- Particle Reconstruction -- Event Selections -- Background Estimation -- Results -- Conclusions. . 
520 |a This book reports a search for theoretically natural supersymmetry (SUSY) at the Large Hadron Collider (LHC). The data collected with the ATLAS detector in 2012 corresponding to 20 /fb of an integrated luminosity have been analyzed for stop pair production in proton–proton collisions at a center-of-mass energy of 8 TeV at the Large Hadron Collider (LHC) in the scenario of the higgsino-like neutralino. The author focuses on stop decaying into a bottom quark and chargino. In the scenario of the higgsino-like neutralino, the mass difference between charginos and neutralinos (Δm) is expected to be small, and observable final-state particles are likely to have low-momentum (soft). The autho r develops a dedicated analysis with a soft lepton as a probe of particles from chargino decay, which suppresses the large amount of backgrounds. As a result of the analysis, no significant SUSY signal is observed. The 95% confidence-level exclusion limits are set to masses of stop and neutralino assuming Δm = 20 GeV. The region with ΔM (the mass difference between stop and neutralino) < 70 GeV is excluded for the first time at stop mass of less than 210 GeV. The author also excludes the signals with ΔM > 120 GeV up to 600 GeV of stop mass with neutralino mass of less than 280 GeV. The author clearly shows very few remaining parameter spaces for light stop (e.g., topology of stop decay is extremely similar to the SM top quark) by combining his results and previous ATLAS analyses. His results provide a strong constraint to searches for new physics in the future. 
650 0 |a Physics. 
650 0 |a Particle acceleration. 
650 0 |a Physical measurements. 
650 0 |a Measurement. 
650 1 4 |a Physics. 
650 2 4 |a Particle Acceleration and Detection, Beam Physics. 
650 2 4 |a Measurement Science and Instrumentation. 
710 2 |a SpringerLink (Online service) 
773 0 |t Springer eBooks 
776 0 8 |i Printed edition:  |z 9789811000010 
830 0 |a Springer Theses, Recognizing Outstanding Ph.D. Research,  |x 2190-5053 
856 4 0 |u http://dx.doi.org/10.1007/978-981-10-0003-4  |z Full Text via HEAL-Link 
912 |a ZDB-2-PHA 
950 |a Physics and Astronomy (Springer-11651)