... Eric Torrence 8/25 May 2005 LFV Backgrounds - Е - Backgrounds - - Е - Е Е- Irreducable at some level, mass/energy resolution important More significant is e ... Backgrounds present a challenge - l - l + l - Backgrounds e+ e- e+ e- ,e+ e- e+ e- ,e+ e- Е+ Е Kinematics, photon conversions Generic tau decays - Particle ID Backgrounds generally lower than Е lhh somewhere in between Eric Torrence 9/25 May 2005 - 3 leptons Е lll analysis E, GeV qq ...
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Ссылки http://zebu.uoregon.edu/~uochep/talks/talks05/torrence.pdf -- 1873.2 Кб -- 08.07.2005 Похожие документы
... Main detector backgrounds? ... Energy collimation at ~10% Enom Parallel beam at compton IP Eric Torrence 9/19 June 2005 2 mRad optics design Yuri Nosochkov Turtle Tracking X CIP Turtle Tracking Y CIP Eric Torrence 10/19 June 2005 2 mRad instrumentation layout Polarimeter Chicane Energy Chicane BHEX3A z=190.06 m x=-- cm BHEX3B z=192.36 m x=-- cm BYCHIC z=~198 m x=-- cm BYCHICM z~208 m x=-- cm Ken Moffeit - June 2 ...
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Ссылки http://zebu.uoregon.edu/~uochep/talks/talks05/torrence-1.pdf -- 844.7 Кб -- 08.07.2005 Похожие документы
From Herschel's catalog, the first accurate stellar parallax measurement of 0.32 seconds of arc for the star 61 Cygni was published by the F.W. Bessel in 1838. ... This distance is equivalent to 3.26 light years. ... The Universe was now a large place and the intrinsic energy output of the stars had to be huge in order that their light could reach us. ... An Orbit in Curved Space This is a prediction made by General Relativity and confirmed by direct observation of Mercury. ...
Newton's Many Accomplishments . ... By the time Isaac Newton entered college, the scientific revolution of the 17th century was well underway. ... Men like Copernicus, Kepler, Galileo, and Descartes had all helped develop a new view of nature. ... He was one of the most creative geniuses the world has ever seen and to many people the greatest scientist who ever lived. ... Principia Mathematica is still considered by many to be the greatest scientific book ever written. ...
... Astronomical Definition: self-replicating information . ... Climate Changes . Milloins of years timescale . ... 500 million years ago (unclear) . 230 million years ago definite . 65 million years ago famous . ... Evidence from Fossil Record: 100-150 million year extinction periodicity ?? ... Since the orbital period of the Sun around the center of the Galaxy is about 250 million years then every 100-150 million years the earth is in a spiral arm which is a region of high supernova density. ...
So the evidence for Dark Matter is fairly overwhelming. ... Theory: if the Universe is closed then all the luminous matter seen in galaxies contributes only 0.5% of the mass required to eventually halt the expansion . ... This means that galaxies are surrounded by dark matter halos which trapped baryonic gas (e.g. hydrogen) and turned it into stars. ... WIMPS - weakly interacting massive particles created in the extremely early universe . ... Theory 99% of the Universe is Dark Matter . ...
The above process keeps the # of protons and the # of neutrons in the early Universe constant. ... Remember, a free neutron (one that is not bound in an atomic nucleus) will decay into a proton + electron (+ anti-neutrino) in about 900 seconds. AT t=0.01 seconds, none of the neutrons have decayed. ... During this epoch, the proton-to-neutron ratio is 1.0 . Epoch #2: . ... Now we have 62% protons and 38% neutrons where at 0.01 seconds we had 50% protons and 50% neutrons. ...