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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.

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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?

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Visitors to P5 now have a series of seven posters of beautiful 3D drawings of the CMS detector to look at before they go underground to the CMS cavern.

This series of the drawings is called “ZOOOM”.

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By Siddharth Sehgal

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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.

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The CMS Letter of Intent was completed 20 years ago this month.

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The LHC circulates protons inside its beam-pipes not in a continuous stream but in several very closely packed bunches.

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Here is a delightful poem written by Erich Harth, an Emeritus Professor from Syracuse University, in the wake of the discovery announcement from CMS and ATLAS.

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I have been a physicist working for CMS for about ten years now, and a guitarist for about twice as long. From time to time I have tried to somehow marry these two worlds, and when I became interested in guitar building I realised that I need to build a “CMS guitar”.

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Every year CERN opens its doors to hundreds of high-school students who wish to get an in-depth look at what it is like to be a scientist or engineer at one of the world’s most prestigious research laboratories.

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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.

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CMS has just passed another major milestone, recording more than 10 inverse femtobarns of data at 8 TeV.

Despite higher pile-up creating more complicated events, CMS improved its running efficiency and now regularly achieves efficiencies in excess of 95, 97 or even 98% each day.

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31 July 2012, CERN

Version française ci-dessous / French version below

The Prime Minister of France Jean-Marc Ayrault visited CERN on the 30th of July, accompanied by the Minister of Higher Education and Research Mme Geneviève Fioraso.

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Jets are the experimental signatures of quarks and gluons produced in high-energy processes such as head-on proton-proton collisions.

Our understanding of physical reality — of everything and nothing — has changed forever. We don't yet know where we are heading, but nothing will ever be the same. As a scientist, I don't know what more I could ask for.

Signaling a likely end to one of the longest, most expensive searches in the history of science, physicists said Wednesday that they had discovered a new subatomic particle that looks for all the world like the Higgs boson, a key to understanding why there is diversity and life in the universe.

Cern scientists reporting from the Large Hadron Collider (LHC) have claimed the discovery of a new particle consistent with the Higgs boson.

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CMS Experiment, CERN
4 July 2012

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4th July Higgs Seminar

On 4th July, at 09:00 CEST, CMS will present their latest results on the search for the Standard Model (SM) Higgs boson at the LHC.

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CMS 2012 data exceed 2011 sample

LHC has delivered 6.65 fb−1 of collisions to CMS in 2012 so far

While the LHC will play the starring role in the 2013/2014 Long Shutdown (LS1), the break will also be a chance for its experiments to upgrade their detectors.

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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.

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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

Another day, another particle. Unlike the Higgs boson, the neutral Xi_b baryon is not expected to solve any deep, outstanding mysteries. But, sightings of its excited state are another first for the Large Hadron Collider (LHC) at CERN near Geneva, Switzerland.

Physicists using the Large Hadron Collider (LHC) particle accelerator have discovered their first brand-new baryon, a particle consisting of three quarks.

A never-before-seen subatomic particle has popped into existence inside the world's largest atom smasher, bringing physicists a step closer to unraveling the mystery of how matter is put together in the universe.

Researchers at the Large Hadron Collider submitted a paper to Physical Review Letters claiming that they’d discovered a new Baryon particle. This is the Xi_b^*0 – which is composed of three quarks: a strange quark, a beauty quark, and an up quark.