2013-08-02, by Verena Ingrid M...
CMS presented new results of searches for signatures of supersymmetry (SUSY) at the LHCP conference held in Barcelona, Spain in May and at the EPSHEP conference held in Stockholm, Sweden in July.
2013-07-19, by Achintya Rao
CMS has seen an important rare decay predicted by the Standard Model
2013-07-03, by Donald William ...
One of the biggest unanswered questions of particle physics is why the mass of the Higgs boson is relatively small when the Standard Model suggests a more natural value would be many
2013-05-31, by Julia Velkovska
Observing a phenomenon for the first time helps us fine-tune our understanding of the Universe. CMS physicists found such a phenomenon in September 2012 in proton-lead collisions, an observation that has since been reinforced by much more data from such collisions collected in early 2013.
2013-05-02, by Alessandra Fanfani
CMS measures production rates up to high transverse momenta
2013-03-18, by Jim Pivarski
Sometimes, everyday words are co-opted by scientists and used as technical terms. One of these is the word “berry”.
2013-03-15, by Achintya Rao
New results on the Higgs boson, Standard Model physics, and searches for exotic physics
2013-03-05, by Achintya Rao
New results on the Higgs-like boson, Supersymmetry, and searches for exotic physics
2013-01-18, by Achintya Rao
The new year brings a new type of collision at the LHC: the accelerator will smash protons and lead nuclei together, allowing CMS and the other LHC experiments to study the cold nuclear matter we expect these collisions to produce.
2012-12-18, by Achintya Rao
2012-12-10, by Achintya Rao
In the vast particle landscape, there are, to borrow a phrase, known knowns (the Standard Model, for example), unknown unknowns (exotic extensions of the Standard Model and beyond), and those ever-interesting known unknowns. A recent CMS observation perfectly fits into this third category.
2012-11-22, by Achintya Rao
Kyoto, Japan on 12–16 November 2012
2012-10-30, by Pedro Vieira De...
Amongst all known elementary particles, the top quark is peculiar: weighing as much as a Tungsten atom, it completes the so-called 3rd generation of quarks and is the only quark whose properties can be directly measured.
2012-10-22, by Wei Li
CMS has published its first paper on proton-lead (pPb) collisions, describing the observation of a phenomenon that was previously seen first in nucleus-nucleus collisions but also detected by CMS in proton-proton (pp) collisions.
2012-10-17, by Jim Pivarski
All of the atoms in our bodies are made of electrons, protons and neutrons, and the protons and neutrons can be further broken down into quarks. Fundamentally, then, we are made of only two types of particles: electrons and quarks. But what do these labels mean?
2012-10-08, by Achintya Rao
Our best understanding of the early Universe tells us that a dense medium, known as the quark-gluon plasma (QGP), existed in the first microseconds after the big bang.
2012-08-13, by Lucas Taylor
The Quark Matter 2012 conference, held in Washington DC from 13-18 August 2012, brings together experimental and theoretical experts in the area of heavy-ion physics.
2012-08-07, by Lucas Taylor
2012-07-09, by Henning Kirschenmann
Jets are the experimental signatures of quarks and gluons produced in high-energy processes such as head-on proton-proton collisions.
2012-05-07, by Alexey Ferapontov
The search for microscopic black holes at the LHC is motivated by the hierarchy problem — the huge observed difference between the strengths of the electroweak and gravitational forces.
2012-05-02, by Achintya Rao
A measurement of the underlying event (UE) activity in proton-proton collisions at a centre-of-mass energy of 7 TeV is performed using Drell-Yan events in a data sample corresponding to an integrated luminosity of 2.2 fb−1
2012-04-27, by Lucas Taylor
New, excited Ξ*b0 baryon observed with more than 5 standard deviations significance at a mass of 5945.0 ± 2.8 MeV.
2012-04-11, by Achintya Rao
A search is presented for a massive particle, generically referred to as a Z′, decaying into a t-tbar pair.
2012-04-08, by Achintya Rao
The production of b jets in association with a Z/γ* boson is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV and recorded by the CMS detector.
2012-04-05, by Achintya Rao
Results are presented from a search for heavy bottom-like quarks, produced in pairs in pp collisions at √s = 7 TeV, undertaken with the CMS experiment at the LHC. The b′ quarks are assumed to decay exclusively to a top quark and a W boson (tW).
2012-04-03, by Achintya Rao
Results are presented from a search for new physics in which the final state contains a photon (γ) and missing transverse energy (MET).
2012-04-03, by Achintya Rao
A study of dijet production in proton-proton collisions was performed at √s = 7 TeV for jets with pT > 35 GeV and |y| < 4.7 using data collected with the CMS detector at the LHC in 2010.
2012-03-21, by Achintya Rao
The LHC provides CMS with millions of collisions each second, and a wealth of physics data is obtained from the proton-proton interactions. In order to record all these data for analyses, all CMS sub-detectors have to be performing optimally.
2012-03-08, by Achintya Rao
CMS has presented a rich variety of results at the Electroweak Interactions and Unified Theories sessions of the Rencontres de Moriond conference in La Thuile, Italy.
2012-02-28, by Achintya Rao
At a CERN seminar today, CMS presented results for the search for new physics in the decay of Bs and B0 mesons to two muons, taking into account all of the 4.9 fb−1 of data collected in 2011.