The DØ and CDF experiments have each collected more than 8 fb-in Run II of Fermilab's Tevatron, and have many recent search results which use up to 5.2 fb-1 . Here I summarize the results of a variety of searches for physics beyond the Standard Model with an emphasis on searches for very exotic phenomena. I will present the status of model-inspired searches for several signatures of supersymmetry, as well as several other searches for several "hidden- valley" inspired models, all of which contain photons and jets in the final state.
The associated production of jets and vector bosons is an important process at hadron colliders. An overview over recent Tevatron vector boson+jets measurements is given with an emphasis on comparisons between data and the predictions of various theory models.
I review here the latest measurements related to vector boson production in association with light or heavy flavor jets at the Tevatron and at the LHC. The methods to estimate the W+jets and Z+jets background in top-quark analyses are also presented.
Studies of the production of W/Z + jets are important for a variety of reasons. W/Z + inclusive jets is a valuable high statistics sample that allows one to probe the validity of predictions from perturbative Quantum Chromodynamics (pQCD) at both leading and next-to-leading order. W/Z + heavy flavor jets (those originating from b or c production) is a significant background to top and Higgs at the Tevatron and will play an important role at the LHC as well. Herein the latest Tevatron results on these production mechanisms are reviewed with an emphasis on comparison of data results to the lates…
Collider signatures containing bosons and jets are particularly interesting. Recent theoretical effort has been devoted to determining predictions of W/Z + multiple parton production; the high statistics sample of W/Z + jets events collected at the Tevatron is a valuable testbed for probing the validity of these calculations. The final state containing a Z or W boson and one or more b-jets is a promising Higgs search channel at the Tevatron and could be a window to new physics at the LHC. These searches benefit from a deep understanding of the production of W/Z + heavy flavor jets which consti…
Recent results on diffractive dijet and vector boson production and exclusive dijet production from the Collider Detector at Fermilab (CDF) experiment are presented.
We present preliminary measurements of $Z/γ^*$+jets, $W+c$ and $Z+b+X$ at the Tevatron, and review recent measurements of vector boson plus inclusive and heavy-flavor jets production. All measurements are in agreement with next-to-leading-order QCD calculations within the experimental and theoretical uncertainties. We also point to comparisons of the production rate and kinematics of the data with several Monte Carlo simulation programs of vector boson + jets processes.
Recent results on searches for new physics at Run II of the Tevatron are reported. The searches cover many different final states and previous hints of signals, but all analyses have at this point led to negative results.
The CDF and DO experiments have collected and analyzed about 300 inverse picobarns of data during the Run II of the Tevatron. Results of searches for new non supersymmetric particles based on these datasets will be presented.
We present the most recent W and Z production, asymmetries, and V+jets results from the Tevatron collider at sqrt(s) = 1.96 TeV, analyzing data collected by CDF and DZero detectors between 2002-2011. The results include the measurements of the W and Z bosons properties, include boson p_T and asymmetries measurements, and also the W and Z boson plus jets productions. Those measurements provide the precision tests on the electroweak in Standard Model (SM), and high order theoretical predictions.
Recent results from HERA and TevaTron on precision tests of QCD with jets, W and Z bosons and photons associated with jets and heavy flavours are presented. The measurements were used to probe QCD at the highest energies, to provide experimental constraints on SM processes that constitute background to new physics, to extract values of the coupling of the strong interaction and to constrain the proton parton distribution functions. The implications of the results on LHC physics are discussed.
We present an overview of the full range of Higgs searches in models beyond the Standard Model at the Tevatron. This includes both searches for Fermiophobic Higgs and for SUSY Higgs at high tan beta. No excess is seen in the data, so model dependent limits are set.
In the following, we describe preliminary results of searches for non-SM higgs bosons at the CDF and D0 experiments. Both experiments use data obtained in pp-bar collisions at the Tevatron at sqrt(s)=1.96 TeV.
This article presents recent results of searches for Supersymmetry using the CDF and the D$\not$O detector at the Fermilab Tevatron Collider. Described are the Tevatron searches for third generation scalar quarks and for supersymmetric signatures involving photons. All the reported results have been obtained assuming theoretical models in which $\mathcal{R}$-parity is conserved.
The CDF and D0 collaborations performed a comprehensive study of the production of vector bosons, W and Z, in association with energetic jets. Understanding the W/Z + jets and W/Z + c, b-jets processes is of paramount importance for the top quark physics, for the Higgs boson measurements, and for many new physics searches. In this contribution the most recent measurements of the associated production of jets and vector bosons in Run II at the Tevatron are presented. The measurements are compared to different perturbative QCD predictions and to several Monte Carlo generators.
SM and MSSM Higgs Searches at the proton anti-proton collider Tevatron in Run II are presented. The performance of the collider and the two experiments D0 and CDF is shown. No deviation from SM background expectation and no MSSM Higgs signal has been observed.
I review recent searches for physics beyond the standard model from the CDF and D0 experiments at the Fermilab Tevatron collider, covering searches for fourth generation quarks, exotic resonances, universal extra dimensions, and dark matter particles.
We report on recent Z (+jets) measurements from the Fermilab Tevatron proton anti-proton collider. A new D0 measurement of the transverse momentum of Z bosons yields the best measurement to date of the non-perturbative form factor, g2. The production of Z+jets is an major background to many rare signals, and is a vital testing ground for theoretical predictions. Measurements from CDF and D0 of differential cross sections in Z+jet production test NLO pQCD, and in the case of D0, the latest tree-level matrix element with matched parton shower calculations. Improving modelling of this signal will…
Measurements of the inclusive jet cross section and the dijet angular distribution using data from the Tevatron are presented. Comparisons to NLO QCD show good agreement below 250 GeV, but CDF data show an excess at higher ET; qualitative agreement is seen between the CDF and DO cross sections. Analysis of the dijet angular distributions exclude quark compositeness below 2.1 TeV.
Results are presented for beyond the Standard Model Higgs boson searches using up to 8.2 invfb of data from Run II at the Tevatron. No significant excess is observed in any of the channels so 95% confidence level limits are presented.
We summarize the status of SM Higgs boson searches at the Fermilab Tevatron performed by the CDF and DØcollaborations, with an emphasis on measurements at large Higgs mass, and derive sensitivity prospects for the upcoming increase in integrated luminosity.
The Tevatron collider has provided the CDF and D0 experiences with large datasets as input to a rich program of searches for physics beyond the standard model. The results presented here are a partial survey of recent searches conducted by the two collaborations using up to 6 /fb of data.
I describe recent signature-based searches for anomalous physics processes using up to 2.9/fb of data from the CDF or D0 detectors at the Fermilab Tevatron. While each search conveys its sensitivity by interpreting a null result in terms of one or more specific exotic models, the searches are designed to be broadly sensitive to many models.
Results are presented for beyond the Standard Model Higgs boson searches using up to 4.2 fb-1 of data from Run II at the Tevatron. No significant excess is observed in any of the channels so 95% confidence level limits are presented.
Recent results on searches for new physics at Run II of the Tevatron and highlights from HERA are reported. The searches cover many different final states and a wide range of models. All analyses have at this point led to negative results, but some interesting anomalies have been found.
Recent measurements on the vector boson plus heavy-flavor jets production by the CDF and D0 experiments are presented in comparisons with recent theoretical predictions. Good understanding of such processes is important to improve our understanding of QCD and also to enhance the potential to search for yet-to-be-discovered new physics phenomena which lead to similar final states.
The CDF and D0 collaborations have results on a large number of searches for beyond-the-standard-model phenomena. This talk focuses on searches for non-supersymmetric model signatures. These results, based on between 1--2.5 fb-1 of data from p pbar collisions at the Fermilab Tevatron, include some of the world's best limits on extra dimensions models and heavy resonances.
The D0 and CDF experiments at the proton-antiproton collider Tevatron have extensively searched for the Higgs boson and signals of supersymmetry using a wide range of signatures. The status of these searches is reviewed with a focus on recent measurements.
Various measurements of the top quark mass in the lepton+jets decay channel of top quark pair production are presented. The measurements are performed on data samples of up to 2.7 fb-1 of integrated luminosity acquired by the CDF and D0 experiments in Run-II of the Tevatron proton-anti-proton collider at a center-of-mass energy of sqrt(s) = 1.96 TeV. The new Tevatron combination using up to 2.8 fb-1 of data results in a preliminary world average mass of the top quark of m_top = 172.4 +- 1.2 GeV. This corresponds to a relative precision of 0.7%.
The results of search for Supersymmetry performed at the Tevatron Collider by the CDF and D0 collaborations are summarized in this paper. No significant deviations with respect to the Standard Model expectations were observed and constraints were set on supersymmetric parameters.
A comprehensive overview of the latest aspects of jet physics in proton-antiproton collisions at $\sqrt{s}=$1.96 TeV is presented. In particular, measurements of the inclusive jet production, dijet and multi-jet production, and jet substructure studies are discussed.
As the integrated luminosity of the Run II Tevatron increases, the sensitivity to new physics is approaching and in some cases surpassing that previously attained in Run I. Presented below are a selection of new results from searches for physics beyond the Standard Model at the CDF and D0 experiments.
We report on results obtained at the Tevatron by the CDF and D0 collaborations up to June 2008 (2.4 fb-1), on searches for standard model (SM) Higgs bosons having a high mass (135-200 GeV). High mass Higgs bosons decay dominantly in WW and the presented searches are performed in the leptonic decay modes of the W's. Both direct production (ppbar -> H) and associated production (ppbar -> WH) are studied and eventually combined with all channels available at the Tevatron. Prospects for SM Higgs searches with the full projected Tevatron statistics are also given.
Recent searches for leptoquark production and compositeness in p-anti-p collisions at sqrt{s}=1.96 TeV are presented using data samples with integrated luminosities up to 4 fb^{-1} recorded with the D0 and CDF detectors at the Tevatron collider.
One of the highest priority physics goals for the upgraded Tevatron experiments, CDF and D0, is the search for the Higgs boson. We present the initial results from both experiments, based on 40--90 pb$^{-1}$ integrated luminosity, of Higgs searches in several final states, including $WH$ and $ZH$, $H\to WW$, and doubly-charged Higgs.
Various recent results of new particle searches at the Fermilab Tevatron are presented. No evidence is found for supersymmetric particles (chargino, gluino), leptoquark bosons and heavy gauge bosons in p-pbar collisions at sqrt{s} = 1.8 TeV. Excluded mass regions for each particle are determined.
In this article results from supersymmetry searches at D0 and CDF are reported. Searches for third generation squarks, searches for gauginos, and searches for models with R-parity violation are described. As no signs of supersymmetry for these models are observed, the most stringent limits to date are presented.
Results of searches at the Tevatron for physics (non-SUSY and non-Higgs) beyond the Standard Model using 200/pb to 480/pb of data are discussed. Searches at DO and CDF for Z', Lepton-Quark compositeness, Randall-Sundrum Gravitons, Large Extra Dimensions, W', Leptoquarks and Excited Electrons are presented here.
Successful operation of the Large Hadron Collider has led to more than 1 fb^-1 of data recorded with both ATLAS and CMS detectors by summer of 2011. This large amount of data has allowed to perform numerous searches for rare processes beyond the Standard Model, many of which are competitive with previous searches performed with the CDF and D0 detectors at the Tevatron. In this talk the most recent searches at the hadron colliders are reviewed.
The results for searches for Supersymmetry (SUSY) at the Tevatron Collider are summarized in this paper. We focus here on searches for trileptons and the lightest stop, as well as scenarios with R-parity violation and split supersymmetry. No significant excesses with respect to the Standard Model were observed and constraints are set on the SUSY parameter space.
The Tevatron collider has provided the CDF and D0 collaborations with large datasets as input to a rich program of physics beyond the standard model. The results presented here are from recent searches for SUSY particles using up to 6 fb-1 of data.
Recent searches for non-SUSY exotics in $p\bar{p}$ collisions at a center-of-mass energy of 1.96 TeV at the Tevatron Run II are reported. The emphasis is put on the results of model-driven analyses which were updated to the full Run IIA datasets corresponding to integrated luminosities of about 1 $fb^{-1}$.
The rapidly increasing integrated luminosity collected by the CDF and D0 detectors at the Tevatron Collider has resulted in a wealth of new results from searches for Higgs bosons in the extensions of the Standard Model. Tighter limits are set on the parameters governing the Higgs sector in these models.
We present the results of searches for Standard Model Higgs, charged stable massive particles, dijet mass resonances, and heavy neutral gauge bosons in Tevatron ppbar collisions at sqrt s = 1.8 TeV using the CDF and D0 detectors.
Recent preliminary results obtained by the CDF and D0 Collaborations on searches for the Higgs boson in proton anti-proton collisions at Sqrt(s)=1.96 TeV at the Fermilab Tevatron collider are discussed. The data, corresponding to integrated luminosities of about 1 fb-1, show no excess of a signal above the expected background in any of the decay channels examined. Instead, upper limits at 95% Confidence Level on the cross section are established. Further, a combined Standard Model Tevatron cross section limit is presented.
We present the current status of searches for supersymmetry performed at the Tevatron accelerator at Fermilab by the CDF and D0 collaborations using luminosity of up to 2.1 fb-1. We focus on searches for charginos, neutralinos, squarks, gluinos and sneutrinos in several supersymmetric scenarios. No supersymmetric signal is detected and limits on the masses and production cross sections for the supersymmetric particles are set.
The Standard Model of particle physics has a number of asymmetries suggestive of a more fundamental theory, where the symmetries are restored. If the symmetry breaking scale is the electroweak scale, new Higgs bosons beyond that of the Standard Model could be observed at the Tevatron. Recent Tevatron searches have set the most stringent limits on new Higgs bosons in a variety of models.
This paper describes the searches for the Higgs boson performed by the CDF and D0 collaborations at the Tevatron ppbar Collider using the data collected in the 1992-95 run. Searches for standard model Higgs and as well for neutral and charged minimal SUSY Higgs bosons are also presented. No signal has been observed and limits are set for production cross sections.
We present the non-standard model Higgs boson searches at both DO and CDF experiments. We concentrate on three topics, reported by DO and CDF recently: the searches for the minimal supersymmetric Higgs boson using pp--> hbb --> bbbb and pp --> hX --> tau tau X, and for long-lived doubly charged Higgs boson.
Latest jet results from the Tevatron are presented in this conference note. These are namely: new results on central inclusive jet production using both cone and $k_T$ algorithms, measurement of decorrelation in azimuthal angle between the two jets with the highest transverse momenta, and study of jet shapes. Results are based on data collected in $\mathrm{p}\bar{\mathrm{p}}$ collisions at $\sqrt{s}=1.96 \mathrm{TeV}$ in the years 2001-2004. Depending on the analysis, integrated luminosity of the sample was up to $378 \mathrm{pb}^{-1}$.
Quark-quark and quark-lepton searches for compositenss at the Fermilab Tevatron are summarized. These are of the contact-interaction variety where sqrt(s-hat) < the hypothesized mass scales, Lambda. Tevatron experiments limit a variety of compositeness phenomena in the range from 1.9 to 8.3 TeV. These limits result from measurements of: the Ht spectrum (D0), dijet mass (D0), dijet angular distribution (CDF, D0), drell-yan production (CDF, D0), and the Neutral Current to Charged Current ratio (CCFR/NuTeV).
This paper summarizes searches at the Fermilab Tevatron for a wide variety of signatures for physics beyond the Standard Model. These include searches for supersymmetric particles, in the two collider detectors and in one fixed target experiment. Also covered are searches for leptoquarks, dijet resonances, heavy gauge bosons, and particles from a fourth generation, as well as searches for deviations from the Standard Model predictions in dijet angular distributions, dilepton mass distributions, and trilinear gauge boson couplings.
We present the status of the Standard Model Higgs boson searches in final states containing τ leptons using data collected from p-pbar collisions at Fermilab Tevatron collider at center-of-mass energy of 1.96 TeV. A summary of the latest results from CDF and D0 collaborations is reported in this paper.
We review the status of the searches for the Higgs boson in the context of the Standard Model and the Minimal SuperSymmetric Standard Model by the CDF and DO experiments at the Fermilab Tevatron proton-antiproton collider, using up to $2.4 \rm{fb}^{-1}$ of Run II data. Since no evidence of signal above the expected background is observed in any of the various final states examined, limits at 95% confidence level are presented.
This paper reviews the most recent results on searches for physics beyond the Standard Model at Tevatron. Both the collider experiments: CDF and DO are performing a large variety of searches such as searches for scalar top and scalar bottom particles, search for new gauge bosons, search for long-lived massive particles and general searches for new particles decaying into dijets. The results, summarized here, are a selection of what obtained recently by both the collaborations using the Run II data, collected so far.
We present the results of searches for non-standard model phenomena, with focus on signature-based searches and searches driven by non-supersymmetry (non-SUSY) models. The analyses use 1.0--2.5 fb-1 of data from ppbar collisions at sqrt(s)=1.96 TeV collected with the CDF and D0 detectors at the Fermilab Tevatron. No significant excess in data has been observed. We report on the event counts, kinematic distributions, and limits on selected model parameters.
The CDF and DØ experiments at the Tevatron are currently the only capable of searching for the Standard Model Higgs boson. This article describes their most sensitive searches in the expected Higgs mass range, focusing on advanced methods used to extract the maximal sensitivity from the data. CDF presents newly updated results for $H \to W^+W^-$ and $ZH \to l^+l^- b\bar{b}$. DØ\ presents two new searches for $WH \to lνb\bar{b}$. These new analyses use the same 1 fb$^{-1}$ dataset as previous searches, but with improved techniques resulting in markedly improved sensitivity.
We present results for various searches for signatures of standard and non-standard model Higgs boson decays conducted at the collider detectors CDF and DO using ~ 100 pb^-1 of integrated luminosity each from the Tevatron Collider Run 1 (1992-96) at \sqrt{s} = 1.8 TeV. No evidence for a Higgs boson decay is found and various limits are set.
