A search for charged massive long-lived particles

0380065 - FZÚ 2013 RIV US eng J - Článek v odborném periodiku
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … celkem 410 autorů
A search for charged massive long-lived particles.
Physical Review Letters. Roč. 108, č. 12 (2012), "121802-1"-"121802-7". ISSN 0031-9007. E-ISSN 1079-7114
Grant CEP: GA MŠMT LA08047
Výzkumný záměr: CEZ:AV0Z10100502
Klíčová slova: ionization energy loss * new particle * supersymmetry * anti-p p * Batavia TEVATRON Coll * D0
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 7.943, rok: 2012
http://prl.aps.org/abstract/PRL/v108/i12/e121802

We report on a search for charged massive long-lived particles (CMLLPs), based on 5.2 fb−1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron ppˉ collider. We search for events in which one or more particles are reconstructed as muons but have speed and ionization energy loss (dE/dx) inconsistent with muons produced in beam collisions. CMLLPs are predicted in several theories of physics beyond the standard model. We exclude pair-produced long-lived gaugino-like charginos below 267 GeV and higgsino-like charginos below 217 GeV at 95% C.L., as well as long-lived scalar top quarks with mass below 285 GeV.
Trvalý link: http://hdl.handle.net/11104/0210881