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Jun
23
revised Ideal energy to study higgsstrahlung at a lepton collider
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Jun
23
revised Ideal energy to study higgsstrahlung at a lepton collider
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Jun
23
comment Ideal energy to study higgsstrahlung at a lepton collider
Circular colliders have the advantage that one can install more than one experiment thus effectively multiplying the recorded luminosity and particles can collide more than once. Looking at Table 3 of arxiv:1308.6176, it is expected to have a total integrated luminosity of $10\ \mathrm{ab}^{-1}$ for four detectors at TLEP240 compared to $0.25\ \mathrm{ab}^{-1}$ at ILC250.
Jun
23
revised Ideal energy to study higgsstrahlung at a lepton collider
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Jun
23
revised Ideal energy to study higgsstrahlung at a lepton collider
added 638 characters in body
Jun
23
answered Ideal energy to study higgsstrahlung at a lepton collider
Jun
21
answered Shape of the Higgs branching ratio to ZZ
Jun
4
awarded  Enlightened
Jun
4
awarded  Nice Answer
Jan
31
answered What would happen if two electrons fuse?
Jan
30
comment Switching a PMT from PC-mode to DC-mode: What happens?
what is the 'coupling' setting at the scope input ?
Jan
30
comment Switching a PMT from PC-mode to DC-mode: What happens?
sounds like something cuts off the DC component in your signal. Just a thought: does your PMT amplifier support DC mode ? (can you share which model it is ?)
Jan
29
comment Switching a PMT from PC-mode to DC-mode: What happens?
have you actually observed what happens when you increase the photon rate (be careful to stay within the limits of your PMT) ? If you have a high rate, pulses from individual photons will 'overlap' and look like a steady current (as illustrated e.g. here: vertilon.com/pmt_readout.html )
Jan
28
comment Are we living in a Universe with 3 time dimensions and 1 spatial dimension?
I guess it would be difficult to read your question if he had one spatial dimension only...
Jan
24
answered Which collision energy at LHC is better for hunting 125 GeV Higgs, 7 TeV, 8 TeV or 14 TeV?
Dec
22
answered Is it possible to single out a proton, electron, neutron?
Dec
20
comment The status of the BICEP2 'discovery' after Planck 2014
see also resonaances.blogspot.com/2014/09/… and links therein
Dec
4
comment What would happen if you put your hand in front of the 7 TeV beam at LHC?
the reflex time of 0.1-0.2 seconds is much larger than the time it takes for the beam to do one turn (which is about $90 \mu s$), once protons interact with the hand, most of them will not make another turn (the beam blows up in the transverse direction), i.e. the reaction time is slow enough to absorb one beam entirely. $1.2 \cdot 10^{11}$ is more the number of protons per bunch, of which there are up to 2808 per beam (see here which would give $3.4 \cdot 10^{14}$ protons per beam.
Dec
4
comment What would happen if you put your hand in front of the 7 TeV beam at LHC?
The design number of bunches is 2808 per beam (see here and $1.15\cdot 10^{11}$ protons per bunch ($3.2 \cdot 10^{14}$ protons per beam), you'll get 362 MJ per beam (at 7 TeV beam energy)
Nov
29
awarded  Yearling