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Discovery potential for supersymmetry in CMS* *

S Abdullin1, Z Antunović2, F Charles3, D Denegri4, U Dydak5, M Dzelalija2, V Genchev6, D Graham7, I Iashvili8,9, A Kharchilava8,9, R Kinnunen10, S Kunori11, K Mazumdar12, C Racca9, L Rurua5,8, N Stepanov1 and J Womersley13

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RESEARCH NOTE FROM COLLABORATION

This work summarizes and puts in an overall perspective studies done within the compact muon solenoid (CMS) concerning the discovery potential for squarks and gluinos, sleptons, charginos and neutralinos, supersymmetric (SUSY) dark matter, lightest Higgs, sparticle mass determination methods and the detector design optimization in view of SUSY searches. It represents the status of our understanding of these subjects as of summer 1997. As a benchmark we used the minimal supergravity-inspired supersymmetric standard model (mSUGRA) with a stable lightest supersymmetric particle (LSP). Discovery of supersymmetry at the large hadron collider should be relatively straightforward. It may occur through the observation of large excesses of events in missing ET plus jets, or with one or more isolated leptons. An excess of trilepton events or isolated dileptons with missing ET, exhibiting a characteristic signature in the l+l invariant mass distribution, could also be the first manifestation of SUSY production. Squarks and gluinos can be discovered for masses in excess of 2 TeV. Charginos and neutralinos can be discovered from an excess of events in dilepton or trilepton final states. Inclusive searches can give early indications from their copious production in squark and gluino cascade decays. Indirect evidence for sleptons can also be obtained from inclusive dilepton studies. Isolation requirements and a jet veto would allow detection of both the direct chargino/neutralino production and the directly produced sleptons. Squark and gluino production may also represent a copious source of Higgs bosons through cascade decays. The lightest SUSY Higgs h → bbar b may be reconstructed with a signal/background ratio of order 1 thanks to hard cuts on ETmiss justified by escaping LSPs. The LSP of SUSY models with conserved R-parity represents a very good candidate for cosmological dark matter. The region of parameter space where this is true is well covered by our searches, at least for tanβ = 2.

If supersymmetry exists at the electroweak scale, it could hardly escape detection in CMS and the study of supersymmetry will form a central part of our physics program.


Footnote
*  Available on CMS information server
PACS

04.65.+e Supergravity

14.80.Ly Supersymmetric partners of known particles

12.60.Jv Supersymmetric models

12.10.-g Unified field theories and models

98.80.Cq Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.)

95.35.+d Dark matter (stellar, interstellar, galactic, and cosmological)

Subjects

Gravitation and cosmology

Particle physics and field theory

Astrophysics and astroparticles

Dates

Issue 3 (March 2002)

Received 11 July 2001

Published 13 February 2002



  1. Discovery potential for supersymmetry in CMS

    S Abdullin et al 2002 J. Phys. G: Nucl. Part. Phys. 28 469

  2. Estimating the Instabilities of N Clocks by Measuring Differences of their Readings

    P Tavella and A Premoli 1994 Metrologia 30 479

  3. Physics concepts of solar ultraviolet radiation by distance education

    A V Parisi 2005 Eur. J. Phys. 26 313

  4. Evaluation of the reproducibility of lung motion probability distribution function (PDF) using dynamic MRI

    Jing Cai et al 2007 Phys. Med. Biol. 52 365

  5. Photons in gapless colour–flavour-locked quark matter

    Mark Alford and Qinghai Wang 2005 J. Phys. G: Nucl. Part. Phys. 31 719

  6. Comparison between frequency standards in Europe and the USA at the 10−15 uncertainty level

    A Bauch et al 2006 Metrologia 43 109

  7. The thin-film equation: recent advances and some new perspectives

    Jürgen Becker and Günther Grün 2005 J. Phys.: Condens. Matter 17 S291

  8. An embedding technique for the solution of coupled Riccati equations

    P Enders and O Schmidtmann 1992 J. Phys. A: Math. Gen. 25 1981

  9. A generalized Lie derivative and homothetic or Killing vectors in the Geroch-Held-Penrose formalism

    Garry Ludwig and S Brian Edgar 2000 Class. Quantum Grav. 17 1683

  10. Charge transfer and target excitation in H+-Na(3s) collisions (2-20 keV)

    F Aumayr et al 1987 J. Phys. B: At. Mol. Phys. 20 2025

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