Search for heavy Majorana neutrinos in e$^{±}$e$^{±}$+jets and e$^{±}$$\mu^{±}$+jets events in proton-proton collisions at $ \sqrt{s}=8 $ TeV

Khachatryan, Vardan

doi:10.1007/JHEP04(2016)169

Title: Search for heavy Majorana neutrinos in e$$^{±}$$e$$^{±}$$+jets and e$$^{±}$$$$\mu^{±}$$+jets events in proton-proton collisions at $$ \sqrt{s}=8 $$ TeV

Journal Article · Wed Apr 27 00:00:00 EDT 2016 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP04(2016)169· OSTI ID:1253587

Khachatryan, Vardan ^[1]

Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.

In this study, a search is performed for heavy Majorana neutrinos (N) decaying into a W boson and a lepton using the CMS detector at the Large Hadron Collider. A signature of two jets and either two same sign electrons or a same sign electron-muon pair is searched for using 19.7 inverse femtobarns of data collected during 2012 in proton-proton collisions at a centre-of-mass energy of 8 TeV. The data are found to be consistent with the expected standard model (SM) background and, in the context of a Type-1 seesaw mechanism, upper limits are set on the cross section times branching fraction for production of heavy Majorana neutrinos in the mass range between 40 and 500 GeV. The results are additionally interpreted as limits on the mixing between the heavy Majorana neutrinos and the SM neutrinos. In the mass range considered, the upper limits range between 0.00015 - 0.72 for |V_eN|² and 6.6x10^-5 - 0.47 for |V_eN V*_μN|² / ( |V_eN|² + |V_μN|²), where V_lN is the mixing element describing the mixing of the heavy neutrino with the SM neutrino of flavour l. These limits are the most restrictive direct limits for heavy Majorana neutrino masses above 200 GeV.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: The CMS Collaboration

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1253587

Report Number(s):: CMS-EXO-14-014; CERN-EP-2016-032; FERMILAB-PUB-16-105-CMS; arXiv:1603.02248; 1426525

Journal Information:: Journal of High Energy Physics (Online), Vol. 2014, Issue 4; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 19 works

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References (47)

Search for Majorana Neutrinos in $B^{-} \to π^{+} μ^{-} μ^{-}$ Decays Aaij, R.; Adeva, B.; Adinolfi, M. Physical Review Letters, Vol. 112, Issue 13 https://doi.org/10.1103/PhysRevLett.112.131802	journal	April 2014
New Generation of Parton Distributions with Uncertainties from Global QCD Analysis Pumplin, Jonathan; Stump, Daniel Robert; Huston, Joey Journal of High Energy Physics, Vol. 2002, Issue 07 https://doi.org/10.1088/1126-6708/2002/07/012	journal	July 2002
The anti- k _t jet clustering algorithm Cacciari, Matteo; Salam, Gavin P.; Soyez, Gregory Journal of High Energy Physics, Vol. 2008, Issue 04 https://doi.org/10.1088/1126-6708/2008/04/063	journal	April 2008
MadGraph 5: going beyond Alwall, Johan; Herquet, Michel; Maltoni, Fabio Journal of High Energy Physics, Vol. 2011, Issue 6 https://doi.org/10.1007/JHEP06(2011)128	journal	June 2011
Search for heavy neutrinos and $$\mathrm {W}$$ W bosons with right-handed couplings in proton–proton collisions at $$\sqrt{s} = 8\,\text {TeV} $$ s = 8 TeV Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A. The European Physical Journal C, Vol. 74, Issue 11 https://doi.org/10.1140/epjc/s10052-014-3149-z	journal	November 2014
Determination of jet energy calibration and transverse momentum resolution in CMS collaboration, The CMS Journal of Instrumentation, Vol. 6, Issue 11 https://doi.org/10.1088/1748-0221/6/11/P11002	journal	November 2011
The catchment area of jets Cacciari, Matteo; Salam, Gavin P.; Soyez, Gregory Journal of High Energy Physics, Vol. 2008, Issue 04 https://doi.org/10.1088/1126-6708/2008/04/005	journal	April 2008
Radiatively induced neutrino masses and large Higgs-neutrino couplings in the Standard Model with Majorana fields Pilaftsis, Apostolos Zeitschrift f�r Physik C Particles and Fields, Vol. 55, Issue 2 https://doi.org/10.1007/BF01482590	journal	June 1992
Review of Particle Physics Olive, K. A. Chinese Physics C, Vol. 38, Issue 9 https://doi.org/10.1088/1674-1137/38/9/090001	journal	August 2014
Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √ s = 8 TeV Journal of Instrumentation, Vol. 10, Issue 06, p. P06005-P06005 https://doi.org/10.1088/1748-0221/10/06/P06005	journal	June 2015
Identification of b-quark jets with the CMS experiment collaboration, The CMS Journal of Instrumentation, Vol. 8, Issue 04 https://doi.org/10.1088/1748-0221/8/04/P04013	journal	April 2013
PYTHIA 6.4 physics and manual Sjöstrand, Torbjörn; Mrenna, Stephen; Skands, Peter Journal of High Energy Physics, Vol. 2006, Issue 05 https://doi.org/10.1088/1126-6708/2006/05/026	journal	May 2006
Confidence level computation for combining searches with small statistics Junk, Thomas Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 434, Issue 2-3 https://doi.org/10.1016/S0168-9002(99)00498-2	journal	September 1999
Search for heavy isosinglet neutrino in e+e− annihilation at LEP Achard, P.; Adriani, O.; Aguilar-Benitez, M. Physics Letters B, Vol. 517, Issue 1-2 https://doi.org/10.1016/S0370-2693(01)00993-5	journal	September 2001
Search for heavy Majorana neutrinos in $μ^{\pm} μ^{\pm}$ + jets events in proton–proton collisions at $\sqrt{s} = 8 TeV$ Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A. Physics Letters B, Vol. 748 https://doi.org/10.1016/j.physletb.2015.06.070	journal	September 2015
Measurement of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msup><mml:mrow><mml:mi mathvariant="normal">W</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi mathvariant="normal">W</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:math> and ZZ production cross sections in pp collisions at <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>8</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M. Physics Letters B, Vol. 721, Issue 4-5 https://doi.org/10.1016/j.physletb.2013.03.027	journal	April 2013
Search for neutral heavy leptons produced in Z decays Abreu et al., P. Zeitschrift f�r Physik C Particles and Fields, Vol. 74, Issue 1 https://doi.org/10.1007/s002880050370	journal	March 1997
A measurement of sin2θw from the charge asymmetry of hadronic events at the Z0 peak Physics Letters B, Vol. 277, Issue 3 https://doi.org/10.1016/0370-2693(92)90760-2	journal	March 1992
μ→eγ at a rate of one out of 109 muon decays? Minkowski, Peter Physics Letters B, Vol. 67, Issue 4 https://doi.org/10.1016/0370-2693(77)90435-X	journal	April 1977
Search for heavy Majorana neutrinos in <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>±</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>±</mml:mo></mml:mrow></mml:msup><mml:mo>+</mml:mo><mml:mtext>jets</mml:mtext></mml:math> and <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mo>±</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi mathvariant="normal">e</mml:mi></mml:mrow><mml:mrow><mml:mo>±</mml:mo></mml:mrow></mml:msup><mml:mo>+</mml:mo><mml:mtext>jets</mml:mtext></mml:math> events in pp collisions at <mml:math altimg="si3.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M. Physics Letters B, Vol. 717, Issue 1-3 https://doi.org/10.1016/j.physletb.2012.09.012	journal	October 2012
ALPGEN, a generator for hard multiparton processes in hadronic collisions Mangano, Michelangelo L.; Piccinini, Fulvio; Polosa, Antonio D. Journal of High Energy Physics, Vol. 2003, Issue 07 https://doi.org/10.1088/1126-6708/2003/07/001	journal	July 2003
Neutrino Mass and Spontaneous Parity Nonconservation Mohapatra, Rabindra N.; Senjanović, Goran Physical Review Letters, Vol. 44, Issue 14 https://doi.org/10.1103/PhysRevLett.44.912	journal	April 1980
Majorana Neutrinos and the Production of the Right-Handed Charged Gauge Boson Keung, Wai-Yee; Senjanović, Goran Physical Review Letters, Vol. 50, Issue 19 https://doi.org/10.1103/PhysRevLett.50.1427	journal	May 1983
Neutrino mass problem and gauge hierarchy Magg, M.; Wetterich, Ch. Physics Letters B, Vol. 94, Issue 1 https://doi.org/10.1016/0370-2693(80)90825-4	journal	July 1980
Pileup subtraction using jet areas Cacciari, Matteo; Salam, Gavin P. Physics Letters B, Vol. 659, Issue 1-2 https://doi.org/10.1016/j.physletb.2007.09.077	journal	January 2008
Geant4—a simulation toolkit Agostinelli, S.; Allison, J.; Amako, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8	journal	July 2003
Presentation of search results: the CL _s technique Read, A. L. Journal of Physics G: Nuclear and Particle Physics, Vol. 28, Issue 10 https://doi.org/10.1088/0954-3899/28/10/313	journal	September 2002
FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order Gavin, Ryan; Li, Ye; Petriello, Frank Computer Physics Communications, Vol. 182, Issue 11 https://doi.org/10.1016/j.cpc.2011.06.008	journal	November 2011
Description and performance of track and primary-vertex reconstruction with the CMS tracker Collaboration, The CMS Journal of Instrumentation, Vol. 9, Issue 10 https://doi.org/10.1088/1748-0221/9/10/P10009	journal	October 2014
Performance of CMS muon reconstruction in pp collision events at √s = 7 TeV collaboration, The CMS Journal of Instrumentation, Vol. 7, Issue 10 https://doi.org/10.1088/1748-0221/7/10/P10002	journal	October 2012
The search for heavy Majorana neutrinos Atre, Anupama; Han, Tao; Pascoli, Silvia Journal of High Energy Physics, Vol. 2009, Issue 05 https://doi.org/10.1088/1126-6708/2009/05/030	journal	May 2009
Signatures for Majorana Neutrinos at Hadron Colliders Han, Tao; Zhang, Bin Physical Review Letters, Vol. 97, Issue 17 https://doi.org/10.1103/PhysRevLett.97.171804	journal	October 2006
Signature for heavy Majorana neutrinos in hadronic collisions Almeida, F. M. L.; Coutinho, Y. A.; Simões, J. A. Martins Physical Review D, Vol. 62, Issue 7 https://doi.org/10.1103/PhysRevD.62.075004	journal	September 2000
Proton lifetime and fermion masses in an SO(10) model Lazarides, G.; Shafi, Q.; Wetterich, C. Nuclear Physics B, Vol. 181, Issue 2 https://doi.org/10.1016/0550-3213(81)90354-0	journal	April 1981
Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at $\sqrt{s} = 7~\mathrm{TeV}$ with the ATLAS detector Aad, G.; Abbott, B.; Abdallah, J. The European Physical Journal C, Vol. 72, Issue 7 https://doi.org/10.1140/epjc/s10052-012-2056-4	journal	July 2012
Heavy neutrino signals at large hadron colliders Aguila, Francisco del; Aguilar-Saavedra, Juan Antonio; Pittau, Roberto Journal of High Energy Physics, Vol. 2007, Issue 10 https://doi.org/10.1088/1126-6708/2007/10/047	journal	October 2007
Review of Particle Physics Group, Particle Data; Amsler, C.; Doser, M. Elsevier https://doi.org/10.5167/uzh-11249	text	January 2008
Review of Particle Physics Tanabashi, M.; Hagiwara, K.; Hikasa, K. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2018-03100	text	January 2018
Search for heavy Majorana neutrinos in μ±μ±+jets and e±e±+jets events in pp collisions at √s =7 TeV Collaboration, Cms; Chatrchyan, Serguei; Bäni, Lukas ETH Zurich https://doi.org/10.3929/ethz-b-000057035	text	January 2012
Review of Particle Physics Beringer, J.; Arguin, J.; Barnett, R. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/phppubdb-24149	text	January 2012
The anti-k_t jet clustering algorithm Cacciari, Matteo; Salam, Gavin P.; Soyez, Gregory arXiv https://doi.org/10.48550/arxiv.0802.1189	text	January 2008
FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order Gavin, Ryan; Li, Ye; Petriello, Frank arXiv https://doi.org/10.48550/arxiv.1011.3540	text	January 2010
MadGraph 5 : Going Beyond Alwall, Johan; Herquet, Michel; Maltoni, Fabio arXiv https://doi.org/10.48550/arxiv.1106.0522	text	January 2011
Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector Collaboration, Atlas arXiv https://doi.org/10.48550/arxiv.1203.5420	text	January 2012
Search for Heavy Isosinglet Neutrino in e+e- Annihilation at LEP Collaboration, L3 arXiv https://doi.org/10.48550/arxiv.hep-ex/0107014	text	January 2001
New Generation of Parton Distributions with Uncertainties from Global QCD Analysis Pumplin, J.; Stump, D. R.; Huston, J. arXiv https://doi.org/10.48550/arxiv.hep-ph/0201195	text	January 2002
Signatures for Majorana neutrinos at hadron colliders Han, Tao; Zhang, Bin arXiv https://doi.org/10.48550/arxiv.hep-ph/0604064	text	January 2006

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