Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV

  title={Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s = 7 TeV},
  author={Atlas Collaboration},
A search for long-lived particles is performed using a data sample of 4.7 fb−1 from proton-proton collisions at a centre-of-mass energy √ s = 7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the mass of the long-lived particles in different scenarios, based on their possible interactions in the inner detector, the calorimeters and the muon spectrometer. Long-lived staus in gauge-mediated… 
Search for long-lived charged particles in proton-proton collisions at √s=13 TeV
Results are presented of a search for heavy stable charged particles produced in proton-proton collisions at √ s = 13 TeV using a data sample corresponding to an integrated luminosity of 2.5 fb−1
Collider searches for long-lived particles beyond the Standard Model
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Under the minimal SUSY standard model (MSSM), the discrepancy in the muon g-2 suggests the SUSY particles are of order 100 GeV, which is also supported by discussions on the little hierarchy problem.
ATLAS draft
A measurement of the inelastic cross section is performed using the ATLAS detector with 63 μb−1 of proton-proton collisions at √ s = 13 TeV. The measurement is performed using scintillators mounted
Fermionic extensions of the Standard Model in light of the Higgs couplings
A bstractAs the Higgs boson properties settle, the constraints on the Standard Model extensions tighten. We consider all possible new fermions that can couple to the Higgs, inspecting sets of up to
1 New Particles Working Group Report Conveners :
This report summarizes the work of the Energy Frontier New Physics working group of the 2013 Community Summer Study (Snowmass). 1.1 Executive Summary • With the discovery of the Higgs, we have
Search for heavy charged long-lived particles in proton-proton collisions at √s= 13 TeV using an ionisation measurement with the ATLAS detector
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Search for heavy charged long-lived particles in proton–proton collisions at s=13TeV using an ionisation measurement with the ATLAS detector
This Letter presents a search for heavy charged long-lived particles produced in proton-proton collisions at root s= 13 TeV at the LHC using a data sample corresponding to an integrated luminosity ...
The unnatural composite Higgs
A bstractComposite Higgs models can trivially satisfy precision-electroweak and flavour constraints by simply having a large spontaneous symmetry breaking scale, f ≳ 10 TeV. This produces a ‘split’


Search for long-lived charged massive particles with the D0 detector.
Time-of-flight information is used to search for pair produced long-lived tau sleptons, gauginolike charginos, and Higgsino-like charginos and finds no evidence of a signal.
Measurement of anti-deuteron photoproduction and a search for heavy stable charged particles at HERA
The cross section for anti-deuteron photoproduction is measured at HERA at a mean centre-of-mass energy of W_{\gamma p} = 200 GeV in the range 0.2 < p_T/M < 0.7 and |y| < 0.4, where M, p_T and y are
Search for charged massive long-lived particles.
A search for charged massive long-lived particles (CMLLPs), predicted in several theories of physics beyond the standard model, based on 5.2  fb(-1) of integrated luminosity collected with the D0 detector at the Fermilab Tevatron pp collider is reported.
Luminosity determination in pp collisions at √s = 7 TeV usingthe ATLAS detector at the LHC
Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at √s=7 TeV are presented. The luminosity is independently determined using
Limit on the mass of a long-lived or stable gluino
We reinterpret the generic CDF charged massive particle limit to obtain a limit on the mass of a stable or long-lived gluino. Various sources of uncertainty are examined. The R-hadron spectrum and
Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC
Article history: Received 10 March 2011 Received in revised form 5 May 2011 Accepted 5 May 2011 Available online 13 May 2011 Editor: H. Weerts Hitherto unobserved long-lived massive particles with
HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
HERWIG is a general-purpose Monte Carlo event generator, which includes the simulation of hard lepton-lepton, lepton-hadron and hadron-hadron scattering and soft hadron-hadron collisions in one
Squark and Gluino Production at Hadron Colliders
We have determined the theoretical predictions for the cross-sections of squark and gluino production at $\ppb$ and $pp$ colliders (Tevatron and LHC) in next-to-leading order of supersymmetric QCD.
Stop production at hadron colliders
Abstract Stop particles are expected to be the lightest squarks in supersymmetric theories and the search for these particles is an important experimental task. We therefore present the cross
An updated description of heavy-hadron interactions in Geant-4
Exotic stable massive particles (SMP) are proposed in a number of scenarios of physics beyond the Standard Model. LHC experiments are expected to be able both to detect and extract the quantum