Search for metastable heavy charged particles with large ionization energy loss in p p collisions at s = 13 _ _ TeV using the ATLAS experiment

DSpace Repository

Show simple item record

dc.contributor.author Aaboud, M.
dc.contributor.author Aad, G.
dc.contributor.author Abbott, B.
dc.contributor.author Abdallah, J.
dc.contributor.author Abdinov, O.
dc.contributor.author Abeloos, B.
dc.contributor.author Aben, R.
dc.contributor.author AbouZeid, O._S.
dc.contributor.author Abraham, N._L.
dc.contributor.author Abramowicz, H.
dc.contributor.author Abreu, H.
dc.contributor.author Abreu, R.
dc.contributor.author Abulaiti, Y.
dc.contributor.author Acharya, B._S.
dc.contributor.author Adamczyk, L.
dc.contributor.author Adams, D._L.
dc.contributor.author Adelman, J.
dc.contributor.author Adomeit, S.
dc.contributor.author Adye, T.
dc.contributor.author Affolder, A._A.
dc.contributor.author Agatonovic-Jovin, T.
dc.contributor.author Agricola, J.
dc.contributor.author Aguilar-Saavedra, J._A.
dc.contributor.author Ahlen, S._P.
dc.contributor.author Ahmadov, F.
dc.contributor.author Aielli, G.
dc.contributor.author Akerstedt, H.
dc.contributor.author kesson, T._P._A.
dc.contributor.author Akimov, A._V.
dc.contributor.author Alberghi, G._L.
dc.contributor.author Albert, J.
dc.contributor.author Albrand, S.
dc.contributor.author Alconada Verzini, M._J.
dc.contributor.author Aleksa, M.
dc.contributor.author Aleksandrov, I._N.
dc.contributor.author Alexa, C.
dc.contributor.author Alexander, G.
dc.contributor.author Alexopoulos, T.
dc.contributor.author Alhroob, M.
dc.contributor.author Aliev, M.
dc.contributor.author Alimonti, G.
dc.contributor.author Alison, J.
dc.contributor.author Alkire, S._P.
dc.contributor.author Allbrooke, B._M._M.
dc.contributor.author Allen, B._W.
dc.contributor.author Allport, P._P.
dc.contributor.author Aloisio, A.
dc.contributor.author Alonso, A.
dc.contributor.author Alonso, F.
dc.contributor.author Alpigiani, C.
dc.contributor.author Alstaty, M.
dc.contributor.author Alvarez Gonzalez, B.
dc.contributor.author lvarez Piqueras, D.
dc.contributor.author Alviggi, M._G.
dc.contributor.author Amadio, B._T.
dc.contributor.author Amako, K.
dc.contributor.author Amaral Coutinho, Y.
dc.contributor.author Amelung, C.
dc.contributor.author Amidei, D.
dc.contributor.author Amor Dos Santos, S._P.
dc.contributor.author Amorim, A.
dc.contributor.author Amoroso, S.
dc.contributor.author Amundsen, G.
dc.contributor.author Anastopoulos, C.
dc.contributor.author Ancu, L._S.
dc.contributor.author Andari, N.
dc.contributor.author Andeen, T.
dc.contributor.author Anders, C._F.
dc.contributor.author Anders, G.
dc.contributor.author Anders, J._K.
dc.contributor.author Anderson, K._J.
dc.contributor.author Andreazza, A.
dc.contributor.author Andrei, V.
dc.contributor.author Angelidakis, S.
dc.contributor.author Angelozzi, I.
dc.contributor.author Anger, P.
dc.contributor.author Angerami, A.
dc.contributor.author Anghinolfi, F.
dc.contributor.author Anisenkov, A._V.
dc.contributor.author Anjos, N.
dc.contributor.author Annovi, A.
dc.contributor.author Antonelli, M.
dc.contributor.author Antonov, A.
dc.contributor.author Anulli, F.
dc.contributor.author Aoki, M.
dc.contributor.author Aperio Bella, L.
dc.contributor.author Arabidze, G.
dc.contributor.author Arai, Y.
dc.contributor.author Araque, J._P.
dc.contributor.author Arce, A._T._H.
dc.contributor.author Arduh, F._A.
dc.contributor.author Arguin, J-F
dc.contributor.author Argyropoulos, S.
dc.contributor.author Arik, M.
dc.contributor.author Armbruster, A._J.
dc.contributor.author Armitage, L._J.
dc.contributor.author Arnaez, O.
dc.contributor.author Arnold, H.
dc.contributor.author Arratia, M.
dc.contributor.author Arslan, O.
dc.date.accessioned 2019-01-17T19:55:18Z
dc.date.available 2019-01-17T19:55:18Z
dc.date.issued 2016
dc.identifier.citation Phys. Rev. D. 93, 112015
dc.identifier.issn 1550-7998
dc.identifier.uri https://hdl.handle.net/10192/36142
dc.description.abstract This paper presents a search for massive charged long-lived particles produced in pp collisions at sí=13 TeV at the LHC using the ATLAS experiment. The data set used corresponds to an integrated luminosity of 3.2 fb_1. Many extensions of the Standard Model predict the existence of massive charged long-lived particles, such as R-hadrons. These massive particles are expected to be produced with a velocity significantly below the speed of light, and therefore to have a specific ionization higher than any Standard Model particle of unit charge at high momenta. The Pixel subsystem of the ATLAS detector is used to measure the ionization energy loss of reconstructed charged particles and to search for such highly ionizing particles. The search presented here has much greater sensitivity than a similar search performed using the ATLAS detector in the sí=8 TeV data set, thanks to the increase in expected signal cross section due to the higher center-of-mass energy of collisions, to an upgraded detector with a new silicon layer close to the interaction point, and to analysis improvements. No significant deviation from Standard Model background expectations is observed, and lifetime-dependent upper limits on R-hadron production cross sections and masses are set. Gluino R-hadrons with lifetimes above 0.4 ns and decaying to qqÀ plus a 100 GeV neutralino are excluded at the 95% confidence level, with lower mass limit ranging between 740 and 1590 GeV. In the case of stable R-hadrons the lower mass limit at the 95% confidence level is 1570 GeV.
dc.format.extent 1 file
dc.language English
dc.language.iso eng
dc.publisher American Physical Society
dc.relation.isversionof https://dx.doi.org/10.1103/PhysRevD.93.112015
dc.rights Creative Commons Attribution 3.0 Unported
dc.rights.uri http://creativecommons.org/licenses/by/3.0/
dc.subject Science & Technology
dc.subject Physical Sciences
dc.subject Astronomy & Astrophysics
dc.subject Physics
dc.subject Particles & Fields
dc.subject SUPERSYMMETRY BREAKING
dc.subject SPLIT SUPERSYMMETRY
dc.subject DISTRIBUTIONS
dc.subject COLLIDERS
dc.subject DETECTOR
dc.subject SQUARK
dc.subject LHC
dc.title Search for metastable heavy charged particles with large ionization energy loss in p p collisions at s = 13 _ _ TeV using the ATLAS experiment
dc.type Article
dc.contributor.department Department of Physics
dc.relation.journal Physical Review D - Particles, Fields, Gravitation, and Cosmology
dc.description.esploro yes


Files in this item

This item appears in the following Collection(s)

Show simple item record

Creative Commons Attribution 3.0 Unported Except where otherwise noted, this item's license is described as Creative Commons Attribution 3.0 Unported

Search BIR


Browse

My Account