Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons

G. Aad; Mogens Dam; Nele Maria Philomena Boelaert; Jørgen Beck Hansen; John Renner Hansen; Jørn Dines Hansen; Peter Henrik Hansen; Simon Johann Franz Heisterkamp; Morten Dam Jørgensen; Sascha Mehlhase; Esben Bryndt Klinkby; Björn Stefan Nilsson; Troels Christian Petersen; Ask Emil Løvschall-Jensen; Stefania Xella

doi:10.1103/PhysRevLett.109.032001

Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons

G. Aad, Mogens Dam, Nele Maria Philomena Boelaert, Jørgen Beck Hansen, John Renner Hansen, Jørn Dines Hansen, Peter Henrik Hansen, Simon Johann Franz Heisterkamp, Morten Dam Jørgensen, Sascha Mehlhase, Esben Bryndt Klinkby, Björn Stefan Nilsson, Troels Christian Petersen, Ask Emil Løvschall-Jensen, Stefania Xella

46 Citationer (Scopus)

Abstract

This Letter presents a search for pair production of heavy down-type quarks decaying via b ^′→Wt in the lepton+jets channel, as b ^′b ^̄′→W ^-tW ⁺t̄→bb̄W ⁺W ^-W ⁺W ^-→l ^±νbb̄qq̄qq̄qq̄. In addition to requiring exactly one lepton, large missing transverse momentum, and at least six jets, the invariant mass of nearby jet pairs is used to identify high transverse momentum W bosons. In data corresponding to an integrated luminosity of 1.04fb ^-1 from pp collisions at √s=7TeV recorded with the ATLAS detector, a heavy down-type quark with mass less than 480GeV can be excluded at the 95% confidence level.

Originalsprog	Engelsk
Tidsskrift	Physical Review Letters
Vol/bind	109
Udgave nummer	3
Sider (fra-til)	032001
Antal sider	19
ISSN	0031-9007
DOI	https://doi.org/10.1103/PhysRevLett.109.032001
Status	Udgivet - 20 jul. 2012

Adgang til dokumentet

10.1103/PhysRevLett.109.032001

Citationsformater

Aad, G., Dam, M., Boelaert, N. M. P., Hansen, J. B., Hansen, J. R., Hansen, J. D., Hansen, P. H., Heisterkamp, S. J. F., Jørgensen, M. D., Mehlhase, S., Klinkby, E. B., Nilsson, B. S., Petersen, T. C., Løvschall-Jensen, A. E., & Xella, S. (2012). Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons. Physical Review Letters, 109(3), 032001. https://doi.org/10.1103/PhysRevLett.109.032001

Aad, G, Dam, M, Boelaert, NMP, Hansen, JB , Hansen, JR , Hansen, JD , Hansen, PH, Heisterkamp, SJF, Jørgensen, MD, Mehlhase, S, Klinkby, EB, Nilsson, BS, Petersen, TC, Løvschall-Jensen, AE & Xella, S 2012, 'Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons', Physical Review Letters, bind 109, nr. 3, s. 032001. https://doi.org/10.1103/PhysRevLett.109.032001

@article{6c8fbc34ae434534b9c4e6f732392141,

title = "Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons",

abstract = "This Letter presents a search for pair production of heavy down-type quarks decaying via b ′→Wt in the lepton+jets channel, as b ′b{\= }′→W -tW +{\=t}→b{\=b}W +W -W +W -→l ±νb{\=b}q{\=q}q{\=q}q{\=q}. In addition to requiring exactly one lepton, large missing transverse momentum, and at least six jets, the invariant mass of nearby jet pairs is used to identify high transverse momentum W bosons. In data corresponding to an integrated luminosity of 1.04fb -1 from pp collisions at √s=7TeV recorded with the ATLAS detector, a heavy down-type quark with mass less than 480GeV can be excluded at the 95% confidence level.",

author = "G. Aad and Mogens Dam and Boelaert, {Nele Maria Philomena} and Hansen, {J{\o}rgen Beck} and Hansen, {John Renner} and Hansen, {J{\o}rn Dines} and Hansen, {Peter Henrik} and Heisterkamp, {Simon Johann Franz} and J{\o}rgensen, {Morten Dam} and Sascha Mehlhase and Klinkby, {Esben Bryndt} and Nilsson, {Bj{\"o}rn Stefan} and Petersen, {Troels Christian} and L{\o}vschall-Jensen, {Ask Emil} and Stefania Xella",

year = "2012",

month = jul,

day = "20",

doi = "10.1103/PhysRevLett.109.032001",

language = "English",

volume = "109",

pages = "032001",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons

AU - Aad, G.

AU - Dam, Mogens

AU - Boelaert, Nele Maria Philomena

AU - Hansen, Jørgen Beck

AU - Hansen, John Renner

AU - Hansen, Jørn Dines

AU - Hansen, Peter Henrik

AU - Heisterkamp, Simon Johann Franz

AU - Jørgensen, Morten Dam

AU - Mehlhase, Sascha

AU - Klinkby, Esben Bryndt

AU - Nilsson, Björn Stefan

AU - Petersen, Troels Christian

AU - Løvschall-Jensen, Ask Emil

AU - Xella, Stefania

PY - 2012/7/20

Y1 - 2012/7/20

N2 - This Letter presents a search for pair production of heavy down-type quarks decaying via b ′→Wt in the lepton+jets channel, as b ′b ̄′→W -tW +t̄→bb̄W +W -W +W -→l ±νbb̄qq̄qq̄qq̄. In addition to requiring exactly one lepton, large missing transverse momentum, and at least six jets, the invariant mass of nearby jet pairs is used to identify high transverse momentum W bosons. In data corresponding to an integrated luminosity of 1.04fb -1 from pp collisions at √s=7TeV recorded with the ATLAS detector, a heavy down-type quark with mass less than 480GeV can be excluded at the 95% confidence level.

AB - This Letter presents a search for pair production of heavy down-type quarks decaying via b ′→Wt in the lepton+jets channel, as b ′b ̄′→W -tW +t̄→bb̄W +W -W +W -→l ±νbb̄qq̄qq̄qq̄. In addition to requiring exactly one lepton, large missing transverse momentum, and at least six jets, the invariant mass of nearby jet pairs is used to identify high transverse momentum W bosons. In data corresponding to an integrated luminosity of 1.04fb -1 from pp collisions at √s=7TeV recorded with the ATLAS detector, a heavy down-type quark with mass less than 480GeV can be excluded at the 95% confidence level.

U2 - 10.1103/PhysRevLett.109.032001

DO - 10.1103/PhysRevLett.109.032001

M3 - Journal article

C2 - 22861838

SN - 0031-9007

VL - 109

SP - 032001

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

ER -

Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons

Abstract

Adgang til dokumentet

Fingeraftryk

Citationsformater