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LHC searches for Dark Matter in compressed mass scenarios: challenges in the forward proton mode
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SYSNO ASEP 0519150 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title LHC searches for Dark Matter in compressed mass scenarios: challenges in the forward proton mode Author(s) Harland-Lang, L. A. (GB)
Khoze, V.A. (GB)
Ryskin, M.G. (GB)
Taševský, Marek (FZU-D) RID, ORCIDNumber of authors 4 Article number 10 Source Title Journal of High Energy Physics. - : Springer - ISSN 1029-8479
Roč. 2019, č. 4 (2019), s. 1-26Number of pages 26 s. Language eng - English Country US - United States Keywords Supersymmetry Phenomenology ; QCD Phenomenology Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics R&D Projects LM2015058 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LG15052 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000463637400001 EID SCOPUS 85064889371 DOI 10.1007/JHEP04(2019)010 Annotation We analyze in detail the LHC prospects at √s = 14 TeV for charged electroweakino searches, decaying to leptons, in compressed supersymmetry scenarios, via exclusive photon-initiated pair production. This provides a potentially increased sensitivity in comparison to inclusive channels. We pay attention to the challenges that such searches would face in the high pile-up environment of the LHC, giving close consideration to the backgrounds. The signal we focus on is the exclusive production of same-flavour muon and electron pairs, with missing energy in the final state, and with two outgoing intact protons registered by the dedicated forward proton detectors. We present results for slepton masses of 120–300 GeV and slepton-neutralino mass splitting of 10–20 GeV, and find that the relevant backgrounds can be controlled to the level of the expected signal yields. We also outline a range of potential methods to further suppress these backgrounds as well as to enlarge the signal yields. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2020 Electronic address http://hdl.handle.net/11104/0304174
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