Search for pair production of first and second generation leptoquarks in proton-proton collisions at s =8 TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SCOPUS dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physical Review D | ||
| Dergi ISSN | 2470-0010 Wos Dergi Scopus Dergi | ||
| Makale Dili | İngilizce | Basım Tarihi | 02-2016 |
| Cilt / Sayı / Sayfa | 93 / 3 / – | DOI | 10.1103/PhysRevD.93.032004 |
| Makale Linki | http://link.aps.org/pdf/10.1103/PhysRevD.93.032004 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| The structure of the standard model (SM) of particle physics exhibits a symmetry between quarks and leptons. This paper reports on a search with the CMS detector at the CERN LHC for leptoquark (LQ) particles. These particles, which manifest a fundamental connection between quarks and leptons, are hypothesized by a variety of extensions to the SM such as grand unified theories [1–8], extended technicolor models [9–11], superstring-inspired models [12], and composite models with lepton and quark substructure [13]. Leptoquarks carry both baryon (B) and lepton (L) quantum numbers and thus couple to leptons and quarks. They carry fractional electric charge, are color triplets under SUð3ÞC, and can be either scalar or vector particles. Other properties such as their weak isospin, the helicity of the quarks and leptons to which they couple, and their fermion number F ¼ ð3B þ LÞ depend on the specific structure of each model. Interpretations of direct searches for LQs at particle colliders rely on effective theories, such as the one described in Ref.[14], which require LQs to have renormalizable interactions, to obey SM gauge group symmetries, and to couple only to SM fermions and gauge bosons. In order to ensure proton stability, in effective theories LQs are generally constrained to conserve lepton and baryon numbers separately. Moreover, existing experimental limits [15, 16] on lepton number violation, flavor changing neutral currents, and other rare processes favor three generations of LQs with no intergenerational mixing, which is the scenario considered here. A search for pair production of first and second generation leptoquarks is … |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
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| Scopus | 8 |