Cross-section measurements of the Higgs boson decaying into a pair of tau-leptons in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
A measurement of production cross sections of the Higgs boson in proton-proton collisions is presented in the $H\rightarrowττ$ decay channel. The analysis is performed using $36.1\mathrm{fb}^{-1}$ of data recorded by the ATLAS experiment at the Large Hadron Collider at a center-of-mass energy of $\sqrt{s}=13$ TeV. All combinations of leptonic ($τ\rightarrow l ν\barν$ with $l = e$, $μ$) and hadronic ($τ\to \mathrm{hadrons} ν$) tau decays are considered. The $H\rightarrowττ$ signal over the expected background from other Standard Model processes is established with an observed (expected) significance of 4.4 (4.1) standard deviations. Combined with results obtained using data taken at 7 and 8 TeV center-of-mass energies, the observed (expected) significance amounts to 6.4 (5.4) standard deviations and constitutes an observation of $H\rightarrowττ$ decays. Using the data taken at $\sqrt{s}=13$ TeV, the total cross section in the $H\rightarrowττ$ decay channel is measured to be $3.77^{+0.60}_{-0.59}\mathrm{(stat.)}^{+0.87}_{-0.74}\mathrm{(syst.)}\mathrm{pb}$, for a Higgs boson of mass 125 GeV assuming the relative contributions of its production modes as predicted by the Standard Model. Total cross sections in the $H\rightarrowττ$ decay channel are determined separately for vector-boson-fusion production and gluon-gluon-fusion production to be $0.28 \pm 0.09\mathrm{(stat.)}^{+0.11}_{-0.09}\mathrm{(syst.)}\mathrm{pb}$ and $3.1 \pm 1.0\mathrm{(stat.)}^{+1.6}_{-1.3}\mathrm{(syst.)}\mathrm{pb}$, respectively. Similarly, results of a fit are reported in the framework of simplified template cross sections. All measurements are in agreement with Standard Model expectations.
Search for pair-production of vector-like quarks in final states with at least one $Z$ boson decaying into a pair of electrons or muons in $pp$ collision data collected with the ATLAS detector at $\sqrt{s}$ = 13 TeV
Searches for a heavy scalar boson H decaying to a pair of 125 GeV Higgs bosons hh or for a heavy pseudoscalar boson A decaying to Zh, in the final states with h to tau tau
Search for heavy resonances decaying into a photon and a hadronically decaying Higgs boson in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
Search for heavy resonances decaying to a photon and a hadronically decaying $Z/W/H$ boson in $pp$ collisions at $\sqrt{s}=13$ $\mathrm{TeV}$ with the ATLAS detector
Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons
这封信介绍了在轻子+喷流通道中通过b '->Wt衰变的重下型夸克的成对产生的研究，如b' b '->WtWt->bbWWWW->lvbbqqqqqq。除了需要恰好一个轻子、大的缺失横向动量和至少六个喷注之外，附近喷注对的不变质量被用来识别高横向动量的W玻色子。在ATLAS探测器记录的sqrt（s）= 7 TeV pp碰撞的积分亮度为1.04 fb^-1的数据中，在95%的置信水平下排除了质量小于480 GeV的重降型夸克。
Search for dark matter in events with missing transverse momentum and a Higgs boson decaying into two photons in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Search for WH production with a light Higgs boson decaying to prompt electron-jets in proton-proton collisions at sqrt(s)=7 TeV with the ATLAS detector
Search for Dark Matter Produced in Association with a Higgs Boson Decaying to $b\bar b$ using 36 fb$^{-1}$ of $pp$ collisions at $\sqrt s=13$ TeV with the ATLAS Detector
Measurement of $WW/WZ \to \ell νq q^{\prime}$ production with the hadronically decaying boson reconstructed as one or two jets in $pp$ collisions at $\sqrt{s}=8$ TeV with ATLAS, and constraints on anomalous gauge couplings
Measurement of the top quark pair cross section with ATLAS in pp collisions at sqrt(s) = 7 TeV using final states with an electron or a muon and a hadronically decaying tau lepton
Search for supersymmetry with jets, missing transverse momentum and at least one hadronically decaying tau lepton in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
Search for a light Higgs boson decaying to long-lived weakly-interacting particles in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
Search for light resonances decaying to boosted quark pairs and produced in association with a photon or a jet in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
Search for Dark Matter in Events with Missing Transverse Momentum and a Higgs Boson Decaying to Two Photons in $pp$ Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector
Search for the Standard Model Higgs boson decaying into $b\bar{b}$ produced in association with top quarks decaying hadronically in $pp$ collisions at $\sqrt{s}$=8 TeV with the ATLAS detector
Search for the Standard Model Higgs boson produced in association with a vector boson and decaying to a b-quark pair with the ATLAS detector
这封信介绍了在大型强子对撞机上用ATLAS探测器直接搜索质量为110 < m（H）< 130 GeV produced in association with a W or Z boson and decaying to bb. Three decay channels are considered: ZH->llbb，WH->lvbb，ZH->vvbb的标准模型希格斯玻色子的结果，其中l对应于电子或μ子。在ATLAS于2011年收集的对应于4.7/fb的积分亮度的7 TeV pp碰撞数据集中，没有观察到希格斯玻色子产生的证据。在110 - 130 GeV的质量范围内，在95%的置信水平下，希格斯玻色子产生的排除极限为标准模型截面的2.5至5.5倍。对于相同的质量间隔，预期排除限范围在2.5和4.9之间。
Search for a new resonance decaying to a $W$ or $Z$ boson and a Higgs boson in the $\ell \ell/ \ell ν/ νν+ b \bar{b}$ final states with the ATLAS Detector
Search for light long-lived neutral particles produced in $pp$ collisions at $\sqrt{s} =$ 13 TeV and decaying into collimated leptons or light hadrons with the ATLAS detector
