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ustc contributes to lhc experiment discovery on higgs boson




new results from the atlas and cms experiments at the large hadron collider (lhc) revealed how strongly the higgs boson interacts with the heaviest known elementary particle, the top quark. research team from the center for particle science and technology of university and science and technology of ...



atlas experiment explores how the higgs boson interacts with other bosons




figures 1 and 2: measurement of the higgs boson production cross sections in its main production modes and normalised to the standard model predictions, as obtained by the h→zz*→4ℓ and h→γγ decay channels respectively. credit: atlas collaboration/cernsince resuming operation for run 2, the...



probing physics beyond the standard model with the atlas experiment




although the discovery of the higgs boson by the atlas and cms collaborations in 2012 completed the standard model, many mysteries remain unexplained. for instance, why is the mass of the higgs boson so much lighter than expected, and why is gravity so weak?



direct coupling of the higgs boson to the top quark observed




on 4 july 2012, two of the experiments at the cern's large hadron collider (lhc), atlas (a toroidal lhc apparatus) and cms (compact-muon-solenoid), reported independently the discovery of the higgs boson. the discovery confirmed the existence of the last missing elementary particle of the standard m...



new atlas precision measurements of the higgs boson in the 'golden channel'




the discovery of a higgs boson in 2012 by the atlas and cms experiments marked a milestone in the history of particle physics. it confirmed a long-standing prediction of the standard model, the theory that comprises our present understanding of elementary particles and their interactions.



new atlas precision measurements of the higgs boson in the 'golden channel'




figure 1: distribution of the invariant mass of the four leptons selected in the atlas measurement of h→zz*→4l using the full 2015+2016 data set. the higgs boson corresponds to the excess of events with respect to the non resonant zz* background observed at 125 gev. credit: atlas collaboration/c...



higgs boson, top quarks linked in milestone collider discovery




the magnet in the compact muon solenoid detector. scientists from florida tech and elsewhere used the cms to reveal how strongly the higgs boson interacts with the top quark. credit: large hadron collider/cernan observation made by an experiment at the large hadron collider involving florida institu...



higgs boson, top quarks linked in milestone collider discovery




an observation made by an experiment at the large hadron collider involving florida institute of technology physicists francisco yumiceva, marcus hohlmann and marc baarmand has for the first time connected the two heaviest elementary particles of the standard model.



cosmic inflation: higgs says goodbye to his 'little brother'




image: inflatons, hypothetical particles beyond the standard model, were sought in mesons decays observed by the lhcb experiment at cern. the image shows a typical, fully reconstructed lhcb event. (source: lhcb... view more credit: source: lhcb collaboration, cernin the first moments after the big...



physicists say the universe could end in a big bang that consumes the known univ




we’ve all heard about the big bang that scientists believe created our universe. harvard physicists have published new research that claims that a destabilization of the higgs boson quantum particle could lead to an explosion of energy that would consume everything the known universe. such an expl...



meet the 'odderon': large hadron collider experiment shows potential evidence of




in a 17-mile circular tunnel underneath the border between france and switzerland, an international collaboration of scientists runs experiments using the world's most advanced scientific instrument, the large hadron collider (lhc). by smashing together protons that travel close to light speed, part...



neutrons detect elusive higgs amplitude mode in quantum material




oak ridge, tenn. july 5, 2017 - a team led by the department of energy's oak ridge national laboratory has used sophisticated neutron scattering techniques to detect an elusive quantum state known as the higgs amplitude mode in a two-dimensional material. the higgs amplitude mode is a condensed matt...



a major upgrade to the large hadron collider is underway




within the lhc, clouds of protons fly around the 27-kilometer ring at nearly the speed of light and there are four points at which they can collide. to see the increase in collisions the lhc team is looking for, they need to be able to squeeze the particle beams at those interaction points, which wi...



physics boosts artificial intelligence methods




researchers from caltech and the university of southern california (usc) report the first application of quantum computing to a physics problem. by employing quantum-compatible machine learning techniques, they developed a method of extracting a rare higgs boson signal from copious noise data. higgs...



physics boosts artificial intelligence methods




image: this is an image of higgs "di-photon " event candidate from large hadron collider data collisions overlaid with a schematic of a wafer of quantum processors. view more credit: lhc image: cern/cms experiment; composite: m. spiropulu (caltech)researchers from caltech and the university of sou...



new results from the atlas experiment




the highest-mass dijet event measured by the atlas experiment. credit: atlas collaboration/cernat the 2017 moriond conference, the atlas experiment at cern presented its first results examining the combined 2015/2016 lhc data. thanks to outstanding performance of the cern accelerator complex, this n...



evidence of the higgs particle's decay in quarks




as part of the atlas collaboration, the freiburg research group led by prof. dr. karl jakobs and dr. christian weiser has contributed to finding strong evidence that, among other things, the higgs particle decays into quarks. the researchers analyzed data sets that were recorded in 2015 and 2016 wit...



higgs boson uncovered by quantum algorithm on d-wave machine




enlarge/ see a higgs there? a quantum ai might.los alamos national labshare this storymachine learning has returned with a vengeance. i still remember the dark days of the late '80s and '90s, when it was pretty clear that the current generation of machine-learning algorithms didn't seem to actually ...



meet the 'odderon': large hadron collider experiment shows potential evidence of




lawrence -- in a 17-mile circular tunnel underneath the border between france and switzerland, an international collaboration of scientists runs experiments using the world's most advanced scientific instrument, the large hadron collider (lhc). by smashing together protons that travel close to light...



new neural network teaches itself go, spanks the pros




enlargedeepmindshare this storywhile artificial intelligence software has made huge strides recently, in many cases, it has only been automating things that humans already do well. if you want an ai to identify the higgs boson in a spray of particles, for example, you have to train it on collisions ...



chance discovery of forgotten 1960s 'preprint' experiment




for years, scientists have complained that it can take months or even years for a scientific discovery to be published, because of the slowness of peer review. to cut through this problem, researchers in physics and mathematics have long used "preprints" - preliminary versions of their scientific fi...



new particle flow algorithm improves atlas experiment precision




proton collisions in the large hadron collider often result in the production of "jets" of particles. these jets are a key element in the measurement of many processes, such as the decays of higgs bosons or other exotic particles. a jet is a stream of particles produced when a quark or gluon is one ...



researchers implement entanglement swapping with independent sources over 100km




image: this is a scheme of the entanglement swapping experiment. view more credit: image by zhang qianga group of scientists led by prof. zhang qiang and pan jianwei from the university of science and technology of china (ustc) have successfully demonstrated entanglement swapping with two independ...



researchers implement entanglement swapping with independent sources over 100km




scheme of the entanglement swapping experiment. credit: zhang qianga group of scientists led by prof. zhang qiang and pan jianwei from the university of science and technology of china (ustc) have successfully demonstrated entanglement swapping with two independent sources 12.5 km apart using 103 km...



boson sampling with photons found to produce useful output in spite of photon le




a team of researchers from china, germany and the u.s. has found that boson sampling with photons is a viable option for testing for quantum supremacy, despite photons leaking from a given test system. in their paper published in the journal physical review letters, the group describes testing the i...