Dr
VIVIANA cavaliere
(CDF Collaboration, University of Illinois at Urbana Champaign)
21/07/2011 09:30
Parallel session talk
We present an updated study of the invariant mass and other kinematic distributions of jet pairs produced in association with a $W$ boson using data collected with the CDF detector utilizing an integrated luminosity of $\sim$ 7~fb$^{-1}$. The distributions are compared in detail to the Standard Model predictions.
Dr
Jadranka Sekaric
(University of Kansas)
21/07/2011 09:45
Parallel session talk
We present a study of the dijet invariant mass spectrum in events with at least two jets produced
in association with a $W$ boson, using data collected with the D0 detector which correspond
to an integrated luminosity of 4.3 fb$^{-1}$. We perform a detailed comparison of the observed
distribution with the background prediction, taking into account systematic uncertainties, to
check the...
Dr
Grégory MOREAU
(LPT/Orsay)
21/07/2011 10:00
Parallel session talk
The last decade of particle physics beyond the Standard Model has seen extensive developments on an alternative to supersymmetry: the scenarios with warped extra dimensions. Those constitute a new paradigm in the sense that they are dual, through the AdS/CFT correspondence, to composite Higgs models. These scenarios predict strong deviations from the Standard Model mainly in the bottom and top...
Thorsten Kuhl
21/07/2011 10:15
Parallel session talk
We summarize the analysis of events with top, top-like and diboson final states in pp collision data recorded with the ATLAS detector. The data are compared to the Standard Model predictions with the goal of searching for new phenomena, e.g. searches for anomalous top-quark production and decay in several channels, including a search for top-quark pair production with anomalous missing...
Kai Yi
21/07/2011 11:00
Parallel session talk
We present results of a number of searches for new physics in all-hadronic final state using pp data at the center-of-mass energy of 7 TeV collected with the CMS detector at the LHC in 2010 and 2011. The sought signals include monojet production in models with large extra dimensions, high-mass resonances decaying in ttbar pairs in all-hadronic decay channel, microscopic black holes, quark...
Adam Gibson
21/07/2011 11:20
Parallel session talk
We summarize the analysis of events with jets in the final state in pp collision data recorded with the ATLAS detector. The data are compared to Standard Model predictions with the goal of searching for new phenomena: heavy resonances, contact interactions and gravitationally-mediated effects in large extra dimensions, including gravitational scattering and quantum micro-black holes.
Christos Leonidopoulos
(FNAL)
21/07/2011 11:40
Parallel session talk
We present the results of a search for non-resonant signal for new physics in leptonic and photonic final states in pp collisions at 7 TeV collected with CMS in 2010 and 2011. These include searches for W'(lv), first and second generation leptoquarks, large extra dimensions in dilepton and diphoton channel, quark-lepton compositeness, anomalies in the transverse momentum of the leptonically...
Tetiana Hryn'ova
(LAPP)
21/07/2011 12:00
Parallel session talk
Studies of leptons and photons at the Large Hadron Collider are some of the most direct and sensitive ways to search for new phenomena. We present the results based on data collected with the ATLAS detector at the LHC and discuss current sensitivities and future discovery prospects.
Jordan Tucker
21/07/2011 12:20
Parallel session talk
We discuss the results of searches for narrow resonances decaying into pairs of leptons, photons, or jets, using pp collisions at 7 TeV delivered by LHC and collected with the CMS detector in 2010 and 2011. These include searches for Z' bosons, RS gravitons, dijet resonances, and excited leptons.
Jie Chen
21/07/2011 12:35
Parallel session talk
Several models of new physics, including split supersymmetry, predict the existence of a heavy particle, which is long-lived on timescales of the bunch spacing of the LHC. We present the results of several searches for these particles, using various experimental techniques, from out-of-time decays in the CMS calorimeter to use of highly displaced vertices, timing, and dE/dx techniques. We...
Dr
Aidan Robson
(Glasgow University)
21/07/2011 12:50
Higgs and New Physics
Parallel session talk
We report on a search for heavy resonances decaying into pairs
of Z bosons using 6fb^-1 of ppbar collisions at sqrt(s)=2TeV
collected by CDF.
The analysis explores three final states corresponding to decays
of Z pairs into four charged leptons, two charged leptons plus
neutrinos, and two charged leptons plus jets.
The results of the search are interpreted in the framework of
theoretical...
Prof.
Sudeshna Banerjee
(Tata Institute of Fundamental Research)
21/07/2011 14:30
Parallel session talk
We report on a search for charged massive long-lived particles (CMLLPs), based on 5.2 fb$^{-1}$ of data collected
with the D0 detector at the Fermilab Tevatron $p\bar{p}$ collider. CMLLPs are predicted in many theories of physics
beyond the Standard Model. We look for events in which one or more particles are reconstructed as muons
but have speed and ionization energy loss $dE/dx$...
Prof.
Dhiman Chakraborty
(Northern Illinois University)
21/07/2011 14:45
Parallel session talk
We present two searches involving final states with top quarks or with
topologies similar to those observed in top quark decays. The first is a search
for the pair production of a fourth generation $t'$ quark and its antiparticle,
followed by their decay to a W boson and a jet, based on an integrated
luminosity of 5.3 fb$^{-1}$ of $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV.
The second...
M.
Hayk Pirumov
(PI Heidelberg)
21/07/2011 15:00
Parallel session talk
New results on searches at HERA with the H1 Experiment are presented.
Lorenzo Bellagamba
21/07/2011 15:15
Parallel session talk
Various channels were explored to look for physics beyond the
standard model.
A search for first generation leptoquarks as a unique signal for
new physics was augmented by searches for unnaturally large number
of events in channels where the number of events predicted in the SM
is small. Such a channel is the production of single top.
Another such channel is the production of tau...
M.
Jihun Kim
(Seoul National Univerity)
21/07/2011 16:30
Parallel session talk
We introduce a jet shape observable, N-subjettiness, that helps to discriminate the fat jet from a highly boosted color singlet particle decaying to N partons and the QCD jet. As an illustration, a toy scheme for the light Standard Model Higgs search via fully hadronic decay channels from `pp -> H W/Z' is suggested. Issues regarding the subjet definition as required by the N-subjettiness are...
M.
Thibault Guillemin
(LAPP)
21/07/2011 16:45
Parallel session talk
We present the result of measurements of the cross sections for the simultaneous
production of two vector bosons ($WW$, $WZ$, $ZZ$) in lepton plus jets decays at
a center-of-mass energy of $\sqrt{s}=1.96$ TeV using data collected with the
CDF and D0 detectors at the Fermilab Tevatron. We then present the results of
searches for the $WZ$ or $ZZ$ production where one ot the bosons...
Boris Tuchming
(Saclay)
21/07/2011 17:00
Parallel session talk
We present the result of searches for the Standard Model Higgs boson produced
via the $H\to W W^{(*)}\to\ell^+\ell'^-$ ($\ell,\ell'=e,\mu,\tau$) process at
a center-of-mass energy of $\sqrt{s}=1.96$ TeV with the CDF and D0 detectors
at the Fermilab Tevatron collider. A Higgs particle with a mass greater than
140 GeV decays primarily into a pair of $W$-bosons and the leptonic...
Dr
Antonio Limosani
(University of Melbourne)
21/07/2011 17:20
Parallel session talk
We present the result of searches for the Standard Model Higgs boson at
the Tevatron in channels which provide additional sensitivity in the high
mass region. These include specialized searches for the $H\to W W^{(*)}\to\ell^+\ell'^-$
associated production with a $W$ or a $Z$ boson, resulting in three-leptons
final states, searches for the $H\to W W^{(*)}$ decay in final states with
2...
Prof.
Stefan Dittmaier Dittmaier
(University of Freiburg)
21/07/2011 17:35
Parallel session talk
Higgs strahlung off W/Z bosons at Tevatron and the LHC, ppbar/pp -> WH/ZH,
is an important process class for discovering a light Higgs boson. In the
talk, first results on electroweak (and QCD) corrections for these
reactions are shown that support the full differential information
and the decays of the W/Z bosons, i.e. the actually considered
processes are ppbar/pp -> l nu H / l l H. The...
Karolos Potamianos
21/07/2011 17:50
Parallel session talk
We present the result of searches for a low mass Standard Model Higgs boson produced in association with a $W$
or a $Z$ boson at a center-of-mass energy of $\sqrt{s}=$1.96~TeV with the CDF and D0 detectors at the Fermilab
Tevatron collider. The search is performed in events containing one or two $b$-tagged jets in association with
either two leptons, or one lepton and an imbalance in...
Azeddine Kasmi
21/07/2011 18:10
Parallel session talk
Although the sensitivity to a low mass Standard Model Higgs boson at the Fermilab Tevatron is highest for channels
involving the $H\to b\bar{b}$ decay, other channels contribute significantly to the combined Higgs search. We
report the results of searches for the Higgs boson in the diphoton final state using up to 8.5~fb$^{-1}$ of
integrated luminosity collected by the CDF and D0 detectors...
Adrian Buzatu
22/07/2011 09:30
Parallel session talk
We present the combination of the searches for the Standard Model Higgs boson at a
center-of-mass energy of $\sqrt{s}=$1.96~TeV, using up to 8.9~fb$^{-1}$ of data
collected with the CDF detector at the Fermilab Tevatron collider. The major
contributing processes include associated production ($WH\to \ell\nu bb$, $ZH\to\nu\nu bb$,
$ZH\to \ell\ell bb$, and $WH\to WWW^{(*)}$) and gluon...
sebastien greder
(IPHC)
22/07/2011 09:45
Parallel session talk
We present the combination of the searches for the Standard Model Higgs boson at a
center-of-mass energy of $\sqrt{s}=$1.96~TeV, using up to 8.5~fb$^{-1}$ of data
collected with the D0 detector at the Fermilab Tevatron collider. The major
contributing processes include associated production ($WH\to \ell\nu bb$, $ZH\to\nu\nu bb$,
$ZH\to \ell\ell bb$, and $WH\to WWW^{(*)}$) and gluon fusion...
Dr
Fabrice Couderc
(CEA/DAPNIA/SPP)
22/07/2011 10:00
Parallel session talk
We present searches for Higgs bosons in final states with $b$-quarks and/or taus
at a center-of-mass energy of $\sqrt{s}=$1.96~TeV using up to 8.5~fb$^{-1}$ of data
collected with the D0 detector. In Supersymmetric models the Higgs boson production
cross section can be significantly enhanced compared to the Standard Model, and in
such models the Higgs boson has a significant branching...
Aruna Kumar NAYAK
(LIP, Lisbon, Portugal)
22/07/2011 10:15
Parallel session talk
We present results from a search for an exotic Higgs Boson in the channel H++ --> l+l+ with the CMS detector using data accumulated in the 2010 & 2011 running of the LHC at sqrt s = 7 TeV. We also present results from a search for a charged Higgs Boson in ttbar decays in the channel H+ -> Tau nu with the CMS detector using data accumulated in the 2010 & 2011 running of the LHC at sqrt s = 7 TeV
Martin Flechl
22/07/2011 11:00
Parallel session talk
The search for the neutral Higgs boson(s) beyond the Standard Model is presented,
based on the ATLAS data collected in 2011. A wide region of the MSSM parameter
space is tested via searches for Higgs decays into two tau-leptons. Additionaly,
the obtained results are interpreted in terms of the exclusion limits for the
Standard Model-like Higgs boson production.
The experimental...
Simone Gennai
(CERN/INFN)
22/07/2011 11:15
Parallel session talk
We present results from a search for the Higgs Boson in the channel H --> Tau Tau with the CMS detector using data accumulated in the 2010 & 2011 running of the LHC at sqrt s = 7 TeV
Ricardo Goncalo
22/07/2011 11:30
Parallel session talk
The decay of the Standard Model-like Higgs boson into bb is the dominant decay
process in the region of low Higgs boson masses. The Higgs search in this channel
requirese an associated heavy object, allowing for strong discrimination from the
dominant multi-jet background processes. We present the status of the Higgs searches
in the H->bb channel based on the ATLAS data collected so far in 2011.
Marumi Kado
22/07/2011 11:45
Parallel session talk
The search for the Standard Model-like Higgs boson decaying to two photons
is one of the best ways to identify a low mass Higgs boson at LHC. The results
of the search in this channel are presented, based on the ATLAS data collected
in 2011 and giving sensitivity exceeding any currently reported. The detailed
analysis of the background contributions is included.
Daniele del Re
(Universita' "Sapienza" & INFN Rome)
22/07/2011 12:00
Parallel session talk
We present results from a search for the SM Higgs Boson in the channel H --> Gamma Gamma with the CMS detector using data accumulated in the 2010 & 2011 running of the LHC at sqrt s = 7 TeV
Konstantinos Nikolopoulos
22/07/2011 12:15
Parallel session talk
The search for the Standard Model-like Higgs boson via its decays into two Z bosons
is presented, based on the ATLAS data collected in 2011. The results obtained in the
fully leptonic 'golden' decay channel cover a wide range of Higgs boson masses.
Above 200 GeV, the sensitivity is highly improved using channels in which one of the
Z bosons decays into neutrinos or hadrons. The good...
Roberto Salerno
22/07/2011 12:35
Parallel session talk
We present results from a search for the SM Higgs Boson in the channels H -> ZZ -> 4l, 2l 2nu and 2l2j with the CMS detector using data accumulated in the 2010 & 2011 running of the LHC at sqrt (s) = 7 TeV
Jonas Strandberg
22/07/2011 14:30
Parallel session talk
The search for the Standard Model-like Higgs boson via its decays into two W bosons
is presented, based on the ATLAS data collected in 2011. The search in the dilepton
final state is more powerful than any public result for intermediate mass Higgs
bosons and has the highest sensitivity of any of the LHC Higgs searches. It is
complemented by semi-leptonic WW decays which give good...
M.
Dmytro Kovalskyi
(UCSB/CERN)
22/07/2011 14:45
Parallel session talk
We present results from a search for the SM Higgs Boson in the channel H -> WW -> 2l 2nu with the CMS detector using data accumulated in the 2010 & 2011 running of the LHC at sqrt s = 7 TeV. A Higgs signal in the Vector Boson Fusion channel, by exploiting the distinctive signature of the events, where the Higgs decay is accompanied by two high rapidity jets, is also presented.
Dr
Kyle Cranmer Cranmer
(New York University)
22/07/2011 15:00
Parallel session talk
Combined ATLAS results on the Standard Model-like Higgs boson search are presented,
based on the ATLAS data collected in 2010 and 2011. Several Higgs boson decay
channels are combined: H->gammagamma, H->ZZ->4l, H->ZZ->llnunu, H->ZZ->llqq,
H->WW->lnulnu and H->WW->lnuqq in a mass range from 110 GeV to 600 GeV. Models with
a fourth generation of heavy leptons and quarks with Standard...
Andrey Korytov
22/07/2011 15:20
Parallel session talk
We report on the combined results from several searches for the SM Higgs boson conducted by the CMS experiment with the data accumulated during the 2010 & 2011 running of the LHC at sqrt(s) = 7 TeV.
Dr
Matthias Schott
(CERN)
22/07/2011 15:40
Parallel session talk
In the global fit of the Standard Model using Gfitter, electroweak precision observables as well as constraints from direct Higgs searches are compared with state-of-the-art electroweak predictions. We use the most recent results for direct Higgs searches, including updates on precision measurements such as MW and mtop from Tevatron and LHC experiments. Moreover, the Gfitter results for the...
Ulrich Ellwanger
(LPT Orsay)
22/07/2011 16:30
Parallel session talk
We review possible properties of Higgs bosons which are
specific to the NMSSM as light CP-even scalars consistent with LEP
bounds, decays into a pair of light CP-odd scalars, and enhanced
branching ratios into two photons. The status of analyses to detect such
unconventionally decaying Higgs bosons is descussed.
Alberto Lusiani
22/07/2011 16:45
Parallel session talk
We present the results of direct searches for light new physics with BABAR. In particular, we describe studies of narrow Upsilon and B decays with sensitivity to possible light pseudoscalar Higgs bosons and invisibly decaying dark matter candidates. We also present results of searches for hidden sector gauge and Higgs bosons.
Jamal Rorie
22/07/2011 17:00
Parallel session talk
We search for a CP-odd light Higgs among 102 M $\Upsilon(1S)$ events recorded with
the Belle detector at KEKB. Our signal mode is
$\Upsilon(1S)\to\gamma A_0;A_0\to \tau^+\tau^-$, where the $\tau$ is
detected via its leptonic decay modes. We determine the upper limits
on the production rates for a CP-odd light Higgs with a mass between
the $\tau^+\tau^-$ threshold and 9.4...
Eric KAJFASZ
(CPPM)
22/07/2011 17:45
Parallel session talk
We present the result of various searches for the production of supersymmetric
particles in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV using data collected
by the CDF and D0 detectors at the Fermilab Tevatron Collider and corresponding
to integrated luminosities of up to 6 fb$^{-1}$. We present results for the
searches for the pair production of stop squark and searches for the...
Prof.
Mark Adams
(University of Illinois at Chicago)
22/07/2011 18:00
Parallel session talk
We report the result of searches for final states with 2 vector bosons,
either two photons or one photon plus one $Z$, in association with large missing
transverse energy produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV.
The data were collected with the D0 detector at the Fermilab Tevatron
Collider and correspond to up to 6.3 fb$^{-1}$ of integrated luminosity.
The observed...
MasterCode Collaboration
(MasterCode),
Samuel Rogerson
(Imperial College London)
22/07/2011 18:15
Parallel session talk
We present the latest results of the MasterCode collaboration on global SUSY fits.
Currently available experimental data are used to determine the preferred
SUSY and Higgs boson mass scales. The data comprise a combination of
high-energy SUSY searches, low-energy precision measurements and astrophysical
data. We include all relevant LHC searches for SUSY, electroweak
precision...
M.
Nils-Erik Bomark
(University of Bergen)
23/07/2011 09:30
Parallel session talk
Adding trilinear R-parity violating terms to a supersymmetric scenario, has large implications for collider phenomenology. We show that a large fraction of parameter space yields a scenario reminiscent of the standard MSSM but where the neutralino instead of escaping the detector, decays to standard model particles. This would give rise to spectacular multi-lepton and/or multi-jet...
Paul Jackson
23/07/2011 09:45
Parallel session talk
R-parity violation in supersymmetry gives rise to many unique experimental signatures. We describe searches with the ATLAS detector for supersymmetry with R-parity violation. Examples include searches for sneutrino decay to electron plus muon, and displaced vertices from the late decays of heavy objects. The most recent results on these channels will be given based on data recorded in 2010 and 2011.
Prof.
Jan Kalinowski
(University of Warsaw)
23/07/2011 10:00
Parallel session talk
The Higgs sector of the $R$-symmetric supersymmetric model includes two iso-doublets R_{d,u} in addition to the standard iso-doublets H_{d,u}. Masses and interactions of these novel states are analysed and their decay modes and production channels at the LHC and e+e- colliders are calculated.
Dr
Amine Benhenni
(LCC Montpellier)
23/07/2011 10:15
Parallel session talk
We consider no-scale supergravity inspired scenarios, with emphasize on the possible dynamical determination of the gravitino mass and connected soft supersymmetry-breaking parameters, through radiative corrections to an essentially flat tree-level potential in the hidden sector.
We (re)emphasize the important role played by the scale-dependent vacuum energy contribution to the...
Iacopo Vivarelli
23/07/2011 11:00
Parallel session talk
The most sensitive channels to Supersymmetry in proton-proton collisions are composed of jet(s) and missing transverse momentum final states (with and without b-jets). The most recent results on these channels will be given based on data recorded in 2011
M.
Christian Autermann
(Hamburg University)
23/07/2011 11:20
Parallel session talk
We present the results of searches for Supersymmetry in all-hadronic final states with jets and missing transverse energy, including the cases of jets identified as b-jets, the decay products of top quarks and hadronically decaying tau leptons. The searches are performed using data collected by the CMS experiment at the LHC in pp-collisions at a center-of-mass energy of 7 TeV. Various...
Alessandro Broggio
(Johannes Gutenberg Universität)
23/07/2011 11:40
Parallel session talk
We use a recent approach to threshold soft gluon resummation, based on
effective field theory, to quantify the dynamical enhancement of the
partonic threshold region for Drell-Yan and slepton pair production in
supersymmetry. We evaluate the resummed invariant mass distribution
and total cross section at the NNLL order, and match the result onto NLO
fixed order calculation.
Helen Hayward
23/07/2011 11:55
Parallel session talk
Channels with one or several leptons or photons and high missing transverse momentum (and potentially high pT jets or b-jets) are a natural place to search for supersymmetry at the LHC. The most recent results on these channels will be given based on data recorded in 2011
Sanjay Padhi
(University of California, San Diego)
23/07/2011 12:15
Parallel session talk
We present the results of searches for Supersymmetry in various topologies that lead to final states with jets and missing transverse momentum together with one or more isolated leptons, one or two photons or a photon and a lepton. The searches are performed using data collected by the CMS experiment at the LHC in pp-collisions at a center-of-mass energy of 7 TeV. Various data-driven...
