publication . Article . Preprint . 2015

Possible explanation of excess events in the search for jets, missing transverse momentum and a Z boson in pp collisions

Ellwanger, Ulrich;
Open Access English
  • Published: 13 Oct 2015 Journal: EPJC, volume 75, issue 8 (issn: 1434-6052, eissn: 1434-6052, Copyright policy)
  • Publisher: Springer/Società Italiana di Fisica
Abstract
We study to which extent SUSY extensions of the Standard Model can describe the excess of events of 3.0 standard deviations observed by ATLAS in the on-Z signal region, respecting constraints by CMS on similar signal channels as well as constraints from searches for jets and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$E^\mathrm{miss}_\text {T}$$\end{document}ETmiss. GMSB-like scenarios are typically in conflict with these constraints, and do not reproduce well the shape of the \d...
Subjects
free text keywords: Regular Article - Theoretical Physics, High Energy Physics - Phenomenology, Engineering (miscellaneous), High Energy Physics - Experiment, Physics and Astronomy (miscellaneous)
Funded by
EC| HIGGSTOOLS
Project
HIGGSTOOLS
The Higgs quest - exploring electroweak symmetry breaking at the LHC
  • Funder: European Commission (EC)
  • Project Code: 316704
  • Funding stream: FP7 | SP3 | PEOPLE
,
EC| INVISIBLES
Project
INVISIBLES
INVISIBLES
  • Funder: European Commission (EC)
  • Project Code: 289442
  • Funding stream: FP7 | SP3 | PEOPLE
28 references, page 1 of 2

1. G. Aad et al. [ATLAS Collaboration], JHEP 1310, 130 (2013). arXiv:1308.1841 [hep-ex]; for an overview see https://twiki.cern. ch/twiki/bin/view/AtlasPublic/SupersymmetryPublicResults. [Erratum-ibid. 1401, 109 (2014)]

2. S. Chatrchyan et al. [CMS Collaboration], JHEP 1406, 055 (2014). arXiv:1402.4770 [hep-ex]; for an overview see https://twiki.cern. ch/twiki/bin/view/CMSPublic/PhysicsResultsSUS

3. V. Khachatryan et al. [CMS Collaboration], JHEP 1504, 124 (2015). arXiv:1502.06031 [hep-ex]

4. G. Aad et al. [ATLAS Collaboration], Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s = 8 TeV pp collisions with the ATLAS detector. arXiv:1503.03290 [hep-ex]

5. G. Barenboim, J. Bernabeu, V. A. Mitsou, E. Romero, E. Torro, O. Vives, METing SUSY on the Z peak. arXiv:1503.04184 [hep-ph]

6. N. Vignaroli, Phys. Rev. D 91(11), 115009 (2015). arXiv:1504.01768 [hep-ph]

7. B. Allanach, A. Raklev, A. Kvellestad, Phys. Rev. D 91, 095016 (2015). arXiv:1504.02752 [hep-ph]

8. A. Kobakhidze, A. Saavedra, L. Wu, J.M. Yang, ATLAS Z-peaked excess in MSSM with a light sbottom or stop. arXiv:1504.04390 [hep-ph]

9. J. Cao, L. Shang, J.M. Yang, Y. Zhang, JHEP 1506, 152 (2015). arXiv:1504.07869 [hep-ph]

10. B.A. Dobrescu, Leptophobic boson signals with leptons, jets and missing energy. arXiv:1506.04435 [hep-ph]

11. M. Cahill-Rowley, J.L. Hewett, A. Ismail, T.G. Rizzo, The ATLAS Z + MET Excess in the MSSM. arXiv:1506.05799 [hep-ph]

12. X. Lu, S. Shirai, T. Terada, ATLAS Z excess in minimal supersymmetric standard model. arXiv:1506.07161 [hep-ph]

13. S.P. Liew, A. Mariotti, K. Mawatari, K. Sakurai, M. Vereecken, Zpeaked excess in goldstini scenarios. arXiv:1506.08803 [hep-ph]

14. G. Aad et al., ATLAS Collaboration. JHEP 1409, 176 (2014). arXiv:1405.7875 [hep-ex]

15. V. Khachatryan et al., CMS Collaboration. JHEP 1505, 078 (2015). arXiv:1502.04358 [hep-ex]

28 references, page 1 of 2
Abstract
We study to which extent SUSY extensions of the Standard Model can describe the excess of events of 3.0 standard deviations observed by ATLAS in the on-Z signal region, respecting constraints by CMS on similar signal channels as well as constraints from searches for jets and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$E^\mathrm{miss}_\text {T}$$\end{document}ETmiss. GMSB-like scenarios are typically in conflict with these constraints, and do not reproduce well the shape of the \d...
Subjects
free text keywords: Regular Article - Theoretical Physics, High Energy Physics - Phenomenology, Engineering (miscellaneous), High Energy Physics - Experiment, Physics and Astronomy (miscellaneous)
Funded by
EC| HIGGSTOOLS
Project
HIGGSTOOLS
The Higgs quest - exploring electroweak symmetry breaking at the LHC
  • Funder: European Commission (EC)
  • Project Code: 316704
  • Funding stream: FP7 | SP3 | PEOPLE
,
EC| INVISIBLES
Project
INVISIBLES
INVISIBLES
  • Funder: European Commission (EC)
  • Project Code: 289442
  • Funding stream: FP7 | SP3 | PEOPLE
28 references, page 1 of 2

1. G. Aad et al. [ATLAS Collaboration], JHEP 1310, 130 (2013). arXiv:1308.1841 [hep-ex]; for an overview see https://twiki.cern. ch/twiki/bin/view/AtlasPublic/SupersymmetryPublicResults. [Erratum-ibid. 1401, 109 (2014)]

2. S. Chatrchyan et al. [CMS Collaboration], JHEP 1406, 055 (2014). arXiv:1402.4770 [hep-ex]; for an overview see https://twiki.cern. ch/twiki/bin/view/CMSPublic/PhysicsResultsSUS

3. V. Khachatryan et al. [CMS Collaboration], JHEP 1504, 124 (2015). arXiv:1502.06031 [hep-ex]

4. G. Aad et al. [ATLAS Collaboration], Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in √s = 8 TeV pp collisions with the ATLAS detector. arXiv:1503.03290 [hep-ex]

5. G. Barenboim, J. Bernabeu, V. A. Mitsou, E. Romero, E. Torro, O. Vives, METing SUSY on the Z peak. arXiv:1503.04184 [hep-ph]

6. N. Vignaroli, Phys. Rev. D 91(11), 115009 (2015). arXiv:1504.01768 [hep-ph]

7. B. Allanach, A. Raklev, A. Kvellestad, Phys. Rev. D 91, 095016 (2015). arXiv:1504.02752 [hep-ph]

8. A. Kobakhidze, A. Saavedra, L. Wu, J.M. Yang, ATLAS Z-peaked excess in MSSM with a light sbottom or stop. arXiv:1504.04390 [hep-ph]

9. J. Cao, L. Shang, J.M. Yang, Y. Zhang, JHEP 1506, 152 (2015). arXiv:1504.07869 [hep-ph]

10. B.A. Dobrescu, Leptophobic boson signals with leptons, jets and missing energy. arXiv:1506.04435 [hep-ph]

11. M. Cahill-Rowley, J.L. Hewett, A. Ismail, T.G. Rizzo, The ATLAS Z + MET Excess in the MSSM. arXiv:1506.05799 [hep-ph]

12. X. Lu, S. Shirai, T. Terada, ATLAS Z excess in minimal supersymmetric standard model. arXiv:1506.07161 [hep-ph]

13. S.P. Liew, A. Mariotti, K. Mawatari, K. Sakurai, M. Vereecken, Zpeaked excess in goldstini scenarios. arXiv:1506.08803 [hep-ph]

14. G. Aad et al., ATLAS Collaboration. JHEP 1409, 176 (2014). arXiv:1405.7875 [hep-ex]

15. V. Khachatryan et al., CMS Collaboration. JHEP 1505, 078 (2015). arXiv:1502.04358 [hep-ex]

28 references, page 1 of 2
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publication . Article . Preprint . 2015

Possible explanation of excess events in the search for jets, missing transverse momentum and a Z boson in pp collisions

Ellwanger, Ulrich;