Search For Scalar Top Quarks And Higgsino-Like Neutralinos - Nobe Takuya | Libro Springer 03/2019 -

home libri books ebook dvd e film top ten sconti 0 Carrello

Torna Indietro

nobe takuya - search for scalar top quarks and higgsino-like neutralinos

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

Disponibilità: Normalmente disponibile in 15 giorni

124,98 €
118,73 €

Questo prodotto usufruisce delle SPEDIZIONI GRATIS
selezionando l'opzione Corriere Veloce in fase di ordine.

Pagabile anche con App18 Bonus Cultura e Carta Docenti

Facebook Twitter Aggiungi commento

Spese Gratis


Lingua: Inglese


Pubblicazione: 03/2019
Edizione: Softcover reprint of the original 1st ed. 2016


Introduction.- The LHC And The ATLAS Experiment.- Data And Monte Carlo Simulation.- Particle Reconstruction.- Event Selections.- Background Estimation.- Results.- Conclusions. 


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 (?m) is expected to be small, and observable final-state particles are likely to have low-momentum (soft). The author 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 ?m = 20 GeV. The region with ?M (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 ?M > 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.

Altre Informazioni



Condizione: Nuovo
Collana: Springer Theses
Dimensioni: 235 x 155 mm Ø 496 gr
Formato: Brossura
Illustration Notes:103 Illustrations, black and white
Pagine Arabe: 224
Pagine Romane: xii

Utilizziamo i cookie di profilazione, anche di terze parti, per migliorare la navigazione, per fornire servizi e proporti pubblicità in linea con le tue preferenze. Se vuoi saperne di più o negare il consenso a tutti o ad alcuni cookie clicca qui. Chiudendo questo banner o proseguendo nella navigazione acconsenti all’uso dei cookie.