Abstract
We examine the production and decay modes of neutralinos and charginos in a softly-broken supersymmetric model with an extra Abelian symmetry U(1)′. We perform the study in a U(1)′ model with a secluded sector, where the tension between the electroweak scale and developing a large enough mass for Z′ is resolved by incorporating three additional SU(2) singlet fields into the model. Although the chargino sector is the same as in the MSSM, the neutralino sector of the model is very rich: five new fermion fields are added to the neutral sector bring the total neutralino states to nine. We implement the model into standard packages and perform a detailed and systematic analysis of production and decay modes at the LHC, for three different scenarios, consistent with the Higgs data and relic density constraints. We concentrate on final signals (1) \(1\ell+\mathit{jets}+\not\! \! E_{T} \), (2) \(2\ell+\mathit{jets}+\not\! \! E_{T} \) and (3) \(3\ell+0\mathit{jets}+\not\! \! E_{T} \), and comment on the case with \(0\ell+\mathit{jets}+\not\! \! E_{T} \). We discuss backgrounds and indicate how these signals can be observed, and how the model can be distinguished from other supersymmetric model scenarios.
Similar content being viewed by others
Notes
The Higgs sector parameters can be fine-tuned and do not affect the specific calculations in this paper.
The branching ratios into tW,bZ and bH 0 for this analysis are assumed to be 42 %, 31 % and 27 %, respectively, for m 𝒬=500 GeV, and the mass restrictions depend crucially on the assumed branching ratios. For reduced ratios, as in our parameter space, the limits disappear.
Requiring one lepton in the final state will significantly reduce the QCD multijet production.
Note that the graphs in the frames 4–6 are interconnected, as \(\varDelta R_{\ell\ell}=(\varDelta\eta_{\ell\ell}^{2}+ \varDelta\phi_{\ell\ell}^{2})^{1/2}\).
References
G. Aad et al. (ATLAS Collaboration), Phys. Lett. B 716, 1 (2012)
S. Chatrchyan et al. (CMS Collaboration), Phys. Lett. B 716, 30 (2012)
R. Aaij et al. (LHCb Collaboration), Phys. Rev. Lett 110, 021801 (2013). arXiv:1211.2674
M. Cvetic, P. Langacker, Phys. Rev. D 54, 3570 (1996)
M. Cvetic, P. Langacker, Mod. Phys. Lett. A 11, 1247 (1996)
J.L. Hewett, T.G. Rizzo, Phys. Rep. 183, 193 (1989)
C.T. Hill, E.H. Simmons, Phys. Rep. 381, 235 (2003)
J.E. Kim, H.P. Nilles, Phys. Lett. B 138, 150 (1984)
D. Suematsu, Y. Yamagishi, Int. J. Mod. Phys. A 10, 4521 (1995)
M. Cvetic, P. Langacker, Mod. Phys. Lett. A 11, 1247 (1996)
V. Jain, R. Shrock, arXiv:hep-ph/9507238
D.A. Demir, Phys. Rev. D 59, 015002 (1999)
H.S. Lee, K.T. Matchev, T.T. Wang, Phys. Rev. D 77, 015016 (2008)
P. Minkowski, Phys. Lett. B 67, 421 (1977)
R.N. Mohapatra, G. Senjanovic, Phys. Rev. Lett. 44, 912 (1980)
J.h. Kang, P. Langacker, T.j. Li, Phys. Rev. D 71, 015012 (2005)
D.A. Demir, L.L. Everett, P. Langacker, Phys. Rev. Lett. 100, 091804 (2008)
D.A. Demir, Y. Farzan, J. High Energy Phys. 0603, 010 (2006)
S. Heinemeyer, O. Stal, G. Weiglein, Phys. Lett. B 710, 201 (2012)
G.G. Ross, K. Schmidt-Hoberg, F. Staub, J. High Energy Phys. 1208, 074 (2012). arXiv:1205.1509 [hep-ph]
J. Erler, P. Langacker, T.j. Li, Phys. Rev. D 66, 015002 (2002)
C.W. Chiang, E. Senaha, J. High Energy Phys. 0806, 019 (2008)
D.A. Demir, M. Frank, L. Selbuz, I. Turan, Phys. Rev. D 83, 095001 (2011)
G. Aad et al. (ATLAS Collaboration), Eur. Phys. J. C 72, 2174 (2012)
G. Aad et al. (ATLAS Collaboration), Phys. Lett. B 715, 44 (2012)
G. Aad et al. (ATLAS Collaboration), Phys. Rev. Lett. 108, 181802 (2012)
S. Chatrchyan et al. (CMS Collaboration), Phys. Rev. D 85, 012004 (2012)
R.M. Godbole, M. Guchait, K. Mazumdar, S. Moretti, D.P. Roy, Phys. Lett. B 571, 184 (2003). hep-ph/0304137
D. Ghosh, R. Godbole, M. Guchait, K. Mohan, D. Sengupta, arXiv:1211.7015 [hep-ph]
O.J.P. Eboli, D. Zeppenfeld, Phys. Lett. B 495, 147 (2000). hep-ph/0009158
M. Frank, L. Selbuz, L. Solmaz, I. Turan, Phys. Rev. D 87, 075007 (2013)
K. Schmidt-Hoberg, F. Staub, arXiv:1208.1683 [hep-ph]
H. An, T. Liu, L.-T. Wang, arXiv:1207.2473 [hep-ph]
A. Delgado, G. Nardini, M. Quiros, arXiv:1207.6596 [hep-ph]
L. Basso, F. Staub, arXiv:1210.7946 [hep-ph]
G. Aad et al. (ATLAS Collaboration), arXiv:1208.2884 [hep-ex]
G. Aad et al. (ATLAS Collaboration), arXiv:1208.3144 [hep-ex]
The ATLAS Collaboration, ATLAS-2012-CONF-2012-041 (2012)
G. Aad et al. (ATLAS Collaboration), arXiv:1204.5638 [hep-ex]
G. Aad et al. (ATLAS Collaboration), ATLAS-CONF-2013-035
G. Aad et al. (ATLAS Collaboration), ATLAS-CONF-2013-049
S. Chatrchyan et al. (CMS Collaboration), arXiv:1209.6620 [hep-ex]
S. Chatrchyan et al. (CMS Collaboration), J. High Energy Phys. 1206, 169 (2012)
S. Chatrchyan et al. (CMS Collaboration), Phys. Lett. B 704, 411 (2011)
S. Chatrchyan et al. (CMS Collaboration), CMS-SUS-13-006
H. Baer, C.-h. Chen, F. Paige, X. Tata, Phys. Rev. D 50, 4508 (1994)
A. Bharucha, S. Heinemeyer, F. von der Pahlen, arXiv:1307.4237 [hep-ph]
S. Gori, S. Jung, L.-T. Wang, arXiv:1307.5952 [hep-ph]
A. Alloul, M. Frank, B. Fuks, M.R. de Traubenberg, arXiv:1307.5073 [hep-ph]
D.A. Demir, L.L. Everett, M. Frank, L. Selbuz, I. Turan, Phys. Rev. D 81, 035019 (2010)
E. Komatsu et al. (WMAP Collaboration), arXiv:1001.4538 [astro-ph.CO]
S.Y. Choi, H.E. Harber, J. Jalinowski, P.M. Zewas, Nucl. Phys. B 778, 85 (2007)
V. Barger, C. Kao, P. Langacker, H.-S. Lee, Phys. Lett. B 600, 104 (2004). hep-ph/0408120
M. Battaglia, A. De Roeck, J.R. Ellis, F. Gianotti, K.A. Olive, L. Pape, Eur. Phys. J. C 33, 273 (2004)
M. Battaglia, A. De Roeck, J.R. Ellis et al., Eur. Phys. J. C 22, 535–561 (2001)
A. Ali, D.A. Demir, M. Frank, I. Turan, Phys. Rev. D 79, 095001 (2009). arXiv:0902.3826 [hep-ph]
A.J. Buras, R. Fleischer, J. Girrbach, R. Knegjens, arXiv:1303.3820 [hep-ph]
A. Pukhov, arXiv:hep-ph/0412191
G. Belanger, F. Boudjema, A. Pukhov et al., Comput. Phys. Commun. 180, 747–767 (2009)
G. Belanger, F. Boudjema, P. Brun et al., arXiv:1004.1092 [hep-ph]
D.N. Spergel et al. (WMAP Collaboration), Astrophys. J. Suppl. 170, 377 (2007)
A. Semenov, arXiv:0805.0555 [hep-ph]
A. Semenov, Comput. Phys. Commun. 115, 124 (1998)
M.R. Whalley, D. Bourilkov, R.C. Group, arXiv:hep-ph/0508110
T. Sjostrand, S. Mrenna, P.Z. Skands, Comput. Phys. Commun. 178, 852 (2008). arXiv:0710.3820 [hep-ph]
S.W. Ham, E.J. Yoo, S.K. Oh, Phys. Rev. D 76, 015004 (2007). hep-ph/0703041 [HEP-PH]
P. Langacker, Rev. Mod. Phys. 81, 1199 (2009). arXiv:0801.1345 [hep-ph]
The ATLAS Collaboration, ATLAS-CONF-2013-051
J. Kang, P. Langacker, B.D. Nelson, Phys. Rev. D 77, 035003 (2008). arXiv:0708.2701 [hep-ph]
M. Kawasaki, K. Kohri, T. Moroi, Phys. Rev. D 71, 083502 (2005). astro-ph/0408426
S. Chatrchyan et al. (CMS Collaboration), arXiv:1305.0491 [hep-ex]
S.W. Ham, S.K. Oh, J. Phys. G 37, 045003 (2010). arXiv:0906.5526 [hep-ph]
http://physics.ucdavis.edu/~conway/research/software/pgs/pgs4-general.htm
G. Aad et al. (ATLAS Collaboration), Phys. Rev. D 85, 092002 (2012)
G. Aad et al. (ATLAS Collaboration), arXiv:0901.0512 [hep-ex]
G. Aad et al. (ATLAS Collaboration), Phys. Lett. B 710, 67 (2012)
G. Aad et al. (ATLAS Collaboration), Phys. Rev. Lett. 106, 131802 (2011)
S. Mukhopadhyay, B. Mukhopadhyaya, A. Nyffeler, J. High Energy Phys. 1005, 001 (2010)
H. Davoudiasl, T. Han, H.E. Logan, Phys. Rev. D 71, 115007 (2005)
S. Abdullin et al. (CMS Collaboration), J. Phys. G 28, 469 (2002). hep-ph/9806366
Acknowledgements
M.F. would like to thank Benjamin Fuks for many discussions on the topic of chargino and neutralino production. The work of M.F. is supported in part by NSERC under grant number SAP105354. The research of L.S. is supported in part by The Council of Higher Education of Turkey (YOK).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Frank, M., Selbuz, L. & Turan, I. Neutralino and chargino production in U(1)′ at the LHC. Eur. Phys. J. C 73, 2656 (2013). https://doi.org/10.1140/epjc/s10052-013-2656-7
Received:
Revised:
Published:
DOI: https://doi.org/10.1140/epjc/s10052-013-2656-7