2017-10-20
16:53 |
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2017-10-20
16:53 |
Design of the new front-end electronics for the readout of the upgraded CMS electromagnetic calorimeter for the HL-LHC
/ Cometti, Simona (INFN, Turin) ; Mazza, Gianni (INFN, Turin)
/CMS Collaboration
The Compact Muon Solenoid detector was originally designed to operate for about ten years, for LHC instantaneous luminosities up to $1 \cdot 10^{34}$ cm$^{-2}$ s$^{-1}$ and integrated luminosity of 500 fb$^{-1}$.
The High Luminosity LHC will increase the instantaneous luminosity by about a factor of 5 from current levels and CMS will accumulate an integrated luminosity of 3000 fb$^{-1}$ by about 2035. With such high luminosity the electromagnetic calorimeter of CMS will have to cope with a challenging increase in the number of interactions per bunch crossing and in radiation levels. [...]
CMS-CR-2017-352.-
Geneva : CERN, 2017 - 6 p.
Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Santa Cruz, Ca, United States Of America, 11 - 14 Sep 2017
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2017-10-20
16:53 |
The CMS trigger in Run 2
/ Tosi, Mia (CERN)
/CMS Collaboration
During its second period of operation (Run 2) which started in 2015,
the LHC will reach a peak instantaneous luminosity of approximately 2$\times 10^{34}$~cm$^{-2}s^{-1}$
with an average pile-up of about 55, far larger than the design value. Under these conditions,
the online event selection is a very challenging task. [...]
CMS-CR-2017-340.-
Geneva : CERN, 2017 - 7 p.
Fulltext: PDF;
In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017
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2017-10-20
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2017-10-20
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2017-10-20
07:41 |
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A Lower Bound on Inelasticity in Pion-Pion Scattering
/ Martin, André ; Roy, S.M.
Assuming that the pion-pion scattering amplitude and its absorptive part are analytic inside an ellipse in $t$- plane with foci $t=0$, $u=0$ and right extremity $t=4 m_{\pi}^2 +\epsilon $, ($\epsilon > 0$), except for cuts prescribed by Mandelstam representation for $t\geq 4 m_{\pi}^2$, $u\geq 4 m_{\pi}^2$ , and bounded by $s^N$ on the boundary of this domain, we prove that for $s\rightarrow \infty$, \sigma_{inel} (s) > \frac{Const}{s^{5/2} }\exp {[-\frac{\sqrt{s}}{4} (N+5/2) \ln {s} ]}..
CERN-TH-2017-215 ; arXiv:1710.07140.
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10 p.
Preprint
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2017-10-20
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2017-10-20
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2017-10-20
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2017-10-20
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