SMP-J workshop (theory part), Jan 25 2017
... why: secondary vertex tracks get very collimated, but more importantly b lifetime gets long enough to hit first tracking layers solution: don’t worry about vertices, just count multiplicity increase history: tried in 80’s and 90’s fixed target expts at hadron machines; did not work very well, tails ...
... why: secondary vertex tracks get very collimated, but more importantly b lifetime gets long enough to hit first tracking layers solution: don’t worry about vertices, just count multiplicity increase history: tried in 80’s and 90’s fixed target expts at hadron machines; did not work very well, tails ...
In search of symmetry lost
... particles that are sufficiently heavy — specifically, those whose mass exceeds 114 GeV, which is the current lower bound14 — will have to await more powerful accelerators than are now available. But theory tells us that this evasion cannot be maintained indefinitely. If the Higgs particle, or an app ...
... particles that are sufficiently heavy — specifically, those whose mass exceeds 114 GeV, which is the current lower bound14 — will have to await more powerful accelerators than are now available. But theory tells us that this evasion cannot be maintained indefinitely. If the Higgs particle, or an app ...
Chapter 33: The Atomic Nucleus and Radioactivity
... consist of negatively charged electrons. Gamma rays are uncharged photons of light. A magnetic field will apply a force to a moving charged particle. Positively charged particles are accelerated in one direction and negative charged particles are accelerated in the opposite direction. Because gamma ...
... consist of negatively charged electrons. Gamma rays are uncharged photons of light. A magnetic field will apply a force to a moving charged particle. Positively charged particles are accelerated in one direction and negative charged particles are accelerated in the opposite direction. Because gamma ...
An introduction to the concept of symmetry - Pierre
... This has been shown to be equivalent to Lorentz invariance Bring Feynman to interpret anti-particles as particles running backward in time… Accidental symmetries such as Baryon (⅓ ×(nq-naq)) and lepton (nl-nal, l=e, m, t) numbers conservation Approximate symmetries such as CP invariance Th ...
... This has been shown to be equivalent to Lorentz invariance Bring Feynman to interpret anti-particles as particles running backward in time… Accidental symmetries such as Baryon (⅓ ×(nq-naq)) and lepton (nl-nal, l=e, m, t) numbers conservation Approximate symmetries such as CP invariance Th ...
The Atomic Nucleus and Radioactivity Review questions pg. 657
... charged electrons. Gamma rays are uncharged photons of light. A magnetic field will apply a force to a moving charged particle. Positively charged particles are accelerated in one direction and negative charged particles are accelerated in the opposite direction. Because gamma rays are not charged, ...
... charged electrons. Gamma rays are uncharged photons of light. A magnetic field will apply a force to a moving charged particle. Positively charged particles are accelerated in one direction and negative charged particles are accelerated in the opposite direction. Because gamma rays are not charged, ...
Compact Muon Solenoid
The Compact Muon Solenoid (CMS) experiment is one of two large general-purpose particle physics detectors built on the Large Hadron Collider (LHC) at CERN in Switzerland and France. The goal of CMS experiment is to investigate a wide range of physics, including the search for the Higgs boson, extra dimensions, and particles that could make up dark matter.CMS is 21.6 metres long, 15 metres in diameter, and weighs about 14,000 tonnes. Approximately 3,800 people, representing 199 scientific institutes and 43 countries, form the CMS collaboration who built and now operate the detector. It is located in an underground cavern at Cessy in France, just across the border from Geneva. In July 2012, along with ATLAS, CMS tentatively discovered the Higgs Boson.