Search for narrow t + b resonances in the leptonic final state at sqrt(s) = 8 TeV - INSPIRE

DataBETA

Search for narrow t + b resonances in the leptonic final state at sqrt(s) = 8 TeV

CMS

Collaboration

Mar 11, 2013

12 pages

Report number:

CMS-PAS-B2G-12-010

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

reference search16 citations

Citations per year

Abstract:

We present a search for the production of a heavy gauge boson

\mathrm{W^\prime}

decaying into a top quark and a bottom quark using a dataset collected during 2012 by the CMS experiment at

\sqrt{s}=8

TeV, corresponding to an integrated luminosity of 19.6 fb

^{-1}

. We study different models of

\mathrm{W^\prime}

boson production in the

\mathrm{W^\prime}

to

\mathrm{tb}

decay mode, investigating an arbitrary combination of left- and right-handed couplings. The analysis is based on events with the final state signature lepton (

\mathrm{e}, \mu

) plus jets and missing transverse energy. We find no evidence for

\mathrm{W^\prime}

boson production and set 95\% C.L. upper limits on the production cross-section. For

\mathrm{W^\prime}

bosons with purely right-handed couplings, and for those with left-handed couplings when ignoring interference with the Standard Model, the observed (expected) 95\% C.L. limit is

M_{\mathrm{W^\prime}}>

2.03(2.09) TeV.

Note:

CMS Physics Analysis Summary - preliminary results

Data
W': coupling
coupling: right-handed
coupling: left-handed
transverse energy: missing-energy
CMS
experimental results
CERN LHC Coll
p p: interaction
narrow resonance: search for

References(27)

Figures(0)

[1]

Little Higgs review

Martin Schmaltz
(
- Boston U.
)
,
David Tucker-Smith
(
- Williams Coll.
)

- Ann.Rev.Nucl.Part.Sci. 55 (2005) 229-270
•
e-Print:
- hep-ph/0502182
•
DOI:
- 10.1146/annurev.nucl.55.090704.151502

[2]

Bounds on universal extra dimensions

- Phys.Rev.D 64 (2001) 035002
•
e-Print:
- hep-ph/0012100
•
DOI:
- 10.1103/PhysRevD.64.035002

[3]

The Standard Model in the Latticized Bulk

- Phys.Rev.D 64 (2001) 065007
•
e-Print:
- hep-th/0104179
•
DOI:
- 10.1103/PhysRevD.64.065007

[4]

Limits on noncommuting extended technicolor

- Phys.Rev.D 53 (1996) 5258-5267
•
e-Print:
- hep-ph/9506427
•
DOI:
- 10.1103/PhysRevD.53.5258

[5]

Left-Right Gauge Symmetry and an Isoconjugate Model of CP Violation

Rabindra N. Mohapatra
(
- Maryland U.
)
,
Jogesh C. Pati
(
- Maryland U.
)

- Phys.Rev.D 11 (1975) 566-571
•
DOI:
- 10.1103/PhysRevD.11.566

[6]

Top flavor: A Separate SU(2) for the third family

- Phys.Lett.B 383 (1996) 345-350
•
e-Print:
- hep-ph/9602390
•
DOI:
- 10.1016/0370-2693(96)00745-9

[7]

A Model of strong flavor dynamics for the top quark

Ehab Malkawi
(
- Michigan State U.
)
,
Timothy M.P. Tait
(
- Michigan State U.
)
,
C.P. Yuan
(
- Michigan State U.
)

- Phys.Lett.B 385 (1996) 304-310
•
e-Print:
- hep-ph/9603349
•
DOI:
- 10.1016/0370-2693(96)00859-3

[8]

Search for $W^\prime$ Boson Resonances Decaying to a Top Quark and a Bottom Quark

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.Lett. 100 (2008) 211803
•
e-Print:
- 0803.3256
•
DOI:
- 10.1103/PhysRevLett.100.211803

[9]

Search for $W{^\prime}\rightarrow tb$ Resonances with Left- and Right-Handed Couplings to Fermions

D0

Collaboration

•

Victor Mukhamedovich Abazov
(
- Dubna, JINR
)

et al.

- Phys.Lett.B 699 (2011) 145-150
•
e-Print:
- 1101.0806
•
DOI:
- 10.1016/j.physletb.2011.03.066

[10]

Search for a $W$ ' Boson Decaying to a Bottom Quark and a Top Quark in $pp$ Collisions at $\sqrt{s}=7$ TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 718 (2013) 1229-1251
•
e-Print:
- 1208.0956
•
DOI:
- 10.1016/j.physletb.2012.12.008

[11]

Search for tb resonances in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Freiburg U.
)

et al.

- Phys.Rev.Lett. 109 (2012) 081801
•
e-Print:
- 1205.1016
•
DOI:
- 10.1103/PhysRevLett.109.081801

[12]

Interference between $W^\prime$ and $W$ in single-top quark production processes

- Phys.Lett.B 655 (2007) 245-250
•
e-Print:
- hep-ph/0610080
•
DOI:
- 10.1016/j.physletb.2007.03.064

[13]

The CMS Experiment at the CERN LHC

CMS

Collaboration

•

S. Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JINST 3 (2008) S08004
•
DOI:
- 10.1088/1748-0221/3/08/S08004

[14]

Fully Differential $W^{\prime}$ Production and Decay at Next-to-Leading Order in QCD

Zack Sullivan
(
- Fermilab
)

- Phys.Rev.D 66 (2002) 075011
•
e-Print:
- hep-ph/0207290
•
DOI:
- 10.1103/PhysRevD.66.075011

[15]

Model independent reach for W-prime bosons at the LHC

Daniel Duffty
(
- IIT, Chicago
)
,
Zack Sullivan
(
- IIT, Chicago
)

- Phys.Rev.D 86 (2012) 075018
•
e-Print:
- 1208.4858
•
DOI:
- 10.1103/PhysRevD.86.075018

[16]

PYTHIA 6.4 Physics and Manual

Torbjorn Sjostrand
(
- Lund U., Dept. Theor. Phys.
)
,
Stephen Mrenna
(
- Fermilab
)
,
Peter Z. Skands
(
- Fermilab
)

- JHEP 05 (2006) 026
•
e-Print:
- hep-ph/0603175
•
DOI:
- 10.1088/1126-6708/2006/05/026

[17]

Geant4 developments and applications

et al.

- IEEE Trans.Nucl.Sci. 53 (2006) 270
•
DOI:
- 10.1109/TNS.2006.869826

[18]

MadGraph/MadEvent v4: The New Web Generation

Johan Alwall
(
- SLAC
)
,
Pavel Demin
(
- Louvain U., CP3
)
,
Simon de Visscher
(
- Louvain U., CP3
)
,
Rikkert Frederix
(
- Louvain U., CP3
)
,
Michel Herquet
(
- Louvain U., CP3
)

et al.

- JHEP 09 (2007) 028
•
e-Print:
- 0706.2334
•
DOI:
- 10.1088/1126-6708/2007/09/028

[19]

NNLL threshold resummation for top-pair and single-top production

Nikolaos Kidonakis
(
- Kennesaw State U.
)

- Phys.Part.Nucl. 45 (2014) 4, 714-722
•
e-Print:
- 1210.7813
•
DOI:
- 10.1134/S1063779614040091

[20]

Matching NLO QCD computations with Parton Shower simulations: the POWHEG method

Stefano Frixione
(
- INFN, Genoa
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Carlo Oleari
(
- INFN, Milan Bicocca and
- Milan Bicocca U.
)

- JHEP 11 (2007) 070
•
e-Print:
- 0709.2092
•
DOI:
- 10.1088/1126-6708/2007/11/070

[21]

Commissioning of the particle-flow event reconstruction wi th leptons from J/ps and W decays at 7 TeV

CMS Collaboration

Collaboration

[22]

The anti- $k_t$ jet clustering algorithm

- JHEP 04 (2008) 063
•
e-Print:
- 0802.1189
•
DOI:
- 10.1088/1126-6708/2008/04/063

[23]

Algorithms for b Jet identification in CMS

CMS Collaboration

Collaboration

[24]

Measurement of the $t \bar{t}$ Production Cross Section in $pp$ Collisions at 7 TeV in Lepton + Jets Events Using $b$ -quark Jet Identification

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.D 84 (2011) 092004
•
e-Print:
- 1108.3773
•
DOI:
- 10.1103/PhysRevD.84.092004

[25]

Performance of b-jet identification in CMS

CMS Collaboration

Collaboration

1-25 of 27
1
2
25 / page