Une Recherche Générique de Nouvelle Physique `a Grande

Une Recherche Générique de Nouvelle Physique à Grande
Impulsion Transverse avec le Détecteur ATLAS au LHC
Responsable: Z. Zhang, tel: 06 83 41 11 78, email: [email protected]
Basic idea:
• New physics: expected to give rise new heavy particles
• Strategy: study all topologies of isolated particles/objects at large PT )
[γ, e, µ, jets and ν (i.e. missing energy)]
look for deviation in all topologies between data and SM predictions
A general search
⇐ comparison ⇒
• Model independent search
• Aim not to miss any discovery opportunity
A specific search
• Model dependent search
• Likely to miss a discovery if Nature
6= expectation
Challenge
If deviation, make sure that it is not a deficiency of
• Monte Carlo simulations of detector inefficiencies or resolution effects
• SM predictions (e.g. missing higher order corrections)
Apply statistical analyses to quantify the discovery significance or exclusion limit
References
• H1 Collab., Phys. Lett. B674 (2009) 257 [arXiv:0901.0507]
• CDF Collab., Phys. Rev. D78 (2008) 012002 [arXiv:0712.1311]
• D0 Collab., [hep-ex/0006011], [hep-ex/0011067]