Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector

The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb−1 of pp collisions at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks (˜b1 and ˜t1...

Descripción completa

Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F., The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
standard model
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78850
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78850
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
standard model
ATLAS detector
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
standard model
ATLAS detector
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
supersymmetry
standard model
ATLAS detector
description The results of a search for pair production of supersymmetric partners of the Standard Model third-generation quarks are reported. This search uses 20.1 fb−1 of pp collisions at √s = 8TeV collected by the ATLAS experiment at the Large Hadron Collider. The lightest bottom and top squarks (˜b1 and ˜t1 respectively) are searched for in a final state with large missing transverse momentum and two jets identified as originating from b-quarks. No excess of events above the expected level of Standard Model background is found. The results are used to set upper limits on the visible cross section for processes beyond the Standard Model. Exclusion limits at the 95% confidence level on the masses of the third-generation squarks are derived in phenomenological supersymmetric R-parity-conserving models in which either the bottom or the top squark is the lightest squark. The ˜b 1 is assumed to decay via ˜b1 ! b˜χ01 and the ˜t1 via ˜t1 ! b˜χ± 1, with undetectable products of the subsequent decay of the ˜χ± 1 due to the small mass splitting between the ˜χ± 1 and the ˜χ01.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_short Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_full Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_fullStr Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_full_unstemmed Search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 TeV pp collisions with the ATLAS detector
title_sort search for direct third-generation squark pair production in final states with missing transverse momentum and two b-jets in √s = 8 tev pp collisions with the atlas detector
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/78850
work_keys_str_mv AT alconadaverzinimariajosefina searchfordirectthirdgenerationsquarkpairproductioninfinalstateswithmissingtransversemomentumandtwobjetsins8tevppcollisionswiththeatlasdetector
AT alonsofrancisco searchfordirectthirdgenerationsquarkpairproductioninfinalstateswithmissingtransversemomentumandtwobjetsins8tevppcollisionswiththeatlasdetector
AT anduagaxabiersebastian searchfordirectthirdgenerationsquarkpairproductioninfinalstateswithmissingtransversemomentumandtwobjetsins8tevppcollisionswiththeatlasdetector
AT dovamariateresa searchfordirectthirdgenerationsquarkpairproductioninfinalstateswithmissingtransversemomentumandtwobjetsins8tevppcollisionswiththeatlasdetector
AT monticellifernandogabriel searchfordirectthirdgenerationsquarkpairproductioninfinalstateswithmissingtransversemomentumandtwobjetsins8tevppcollisionswiththeatlasdetector
AT tripianamartinf searchfordirectthirdgenerationsquarkpairproductioninfinalstateswithmissingtransversemomentumandtwobjetsins8tevppcollisionswiththeatlasdetector
AT theatlascollaboration searchfordirectthirdgenerationsquarkpairproductioninfinalstateswithmissingtransversemomentumandtwobjetsins8tevppcollisionswiththeatlasdetector
bdutipo_str Repositorios
_version_ 1764820486709051395

Ejemplares similares