uu.seUppsala universitets publikationer
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Hunting for scalar leptoquarks with boosted tops and light leptons
Int Inst Informat Technol, Ctr Computat Nat Sci & Bioinformat, Hyderabad 500032, India.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Högenergifysik.ORCID-id: 0000-0001-7268-549X
Int Inst Informat Technol, Ctr Computat Nat Sci & Bioinformat, Hyderabad 500032, India.
2019 (Engelska)Ingår i: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 100, nr 7, artikel-id 075019Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The LHC search strategies for leptoquarks that couple dominantly to a top quark are different than for the ones that couple mostly to the light quarks. We consider charge 1/3 (phi(1)) and 5/3 (phi(5)) scalar leptoquarks that can decay to a top quark and a charged lepton (tl) giving rise to a resonance system of a boosted top and a high-p(T) lepton. We introduce simple phenomenological models suitable for bottom-up studies and explicitly map them to all possible scalar leptoquark models within the Buchmuller-Ruckl-Wyler classifications that can have the desired decays. We study pair and single productions of these leptoquarks. Contrary to the common perception, we find that the single production of top-philic leptoquarks phi = {phi(1), phi(5)} in association with a lepton and jets could be significant for order one phi tl coupling in certain scenarios. We propose a strategy of selecting events with at least one hadronic-top and two high-p(T) same flavor opposite sign leptons. This captures events from both pair and single productions. Our strategy can significantly enhance the LHC discovery potential especially in the high-mass region where single productions become more prominent. Our estimation shows that a scalar leptoquark as heavy as similar to 1.7 TeV can be discovered at the 14 TeV LHC with 3 ab(-1) of integrated luminosity in the tll + X channel for 100% branching ratio in the phi -> tl decay mode. However, in some scenarios, the discovery reach can increase beyond 2 TeV even though the branching ratio comes down to about 50%.

Ort, förlag, år, upplaga, sidor
AMER PHYSICAL SOC , 2019. Vol. 100, nr 7, artikel-id 075019
Nationell ämneskategori
Subatomär fysik
Identifikatorer
URN: urn:nbn:se:uu:diva-396708DOI: 10.1103/PhysRevD.100.075019ISI: 000491169300005OAI: oai:DiVA.org:uu-396708DiVA, id: diva2:1368858
Tillgänglig från: 2019-11-08 Skapad: 2019-11-08 Senast uppdaterad: 2019-11-08Bibliografiskt granskad

Open Access i DiVA

fulltext(522 kB)27 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 522 kBChecksumma SHA-512
23617e1e85ffcafd59f284f7bc5c482fc1974a9212c4b4203773e1b8b89819ead652419505fe11e5a8d4654e3425a80e57a5df60777af5fdd606794236faca73
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltext

Personposter BETA

Mandal, Tanumoy

Sök vidare i DiVA

Av författaren/redaktören
Mandal, Tanumoy
Av organisationen
Högenergifysik
I samma tidskrift
Physical Review D: covering particles, fields, gravitation, and cosmology
Subatomär fysik

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 27 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 22 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf