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TOTEM Notes

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2017-05-24
11:22
Evidence for proton-tagged, central semi-exclusive production of high-mass muon pairs at 13 TeV with the CMS-TOTEM Precision Proton Spectrometer /CMS Collaboration ; TOTEM Collaboration
The process $pp \rightarrow p \mu^+\mu^- p^{(*)}$ has been observed at the LHC for dimuon masses larger than $110~\mathrm{GeV}$ in $pp$ collisions at $\sqrt{s}=13~\mathrm{TeV}$. Here $p^{(*)}$ indicates that the second proton is undetected, and either remains intact or dissociates into a low-mass state $p^{*}$. [...]
CMS-PAS-PPS-17-001; TOTEM-NOTE-2017-003.- Geneva : CERN, 2017 Figure_001-a: PDF; Figure_001-b: PDF; Figure_001-c: PDF; Figure_002: PDF; Figure_003: PDF; Figure_004: PDF; Figure_005: PDF; Figure_006: PDF; Figure_007: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_009: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_011: PDF; Fulltext in PDF: PDF;

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2017-03-21
18:24
LHC optics determination with proton tracks measured in the CT-PPS detectors in 2016, before TS2 / Nemes, F (CERN, Geneva, Switzerland. On leave from MTA Wigner Research Center, RMKI, Budapest, Hungary.)
Novel optics estimation methods have been developed for the CMS-TOTEM Precision Proton Spectrometer (CT-PPS), in order to determine the horizontal dispersion function $D_{x}$ and the orbit between IP5 and the Roman Pot detectors. [...]
CERN-TOTEM-NOTE-2017-002. - 2017. - 12 p.
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2017-03-20
19:05
Alignment of CT-PPS detectors in 2016, before TS2 / Kaspar, J (INFN Sezione di Pisa, Pisa, Italy)
This note presents the first alignment of the CMS-TOTEM Precision Proton Spectrometer (CT-PPS) using the data from before Technical Stop 2 (TS2), 2016. [...]
CERN-TOTEM-NOTE-2017-001. - 2017. - 16 p.
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2015-09-29
12:16
Timing performances of diamond detectors with Charge Sensitive Amplifier readout / Berretti, M (CERN and INFN Pisa) ; Bossini, E (INFN Pisa and Museo Storico della Fisica e Centro Studi e Ricerche E. Fermi) ; Minafra, N (CERN and Dipartimento Interateneo di Fisica di Bari)
Research on particle detector based on synthetic diamonds has always been limited by the cost, quality and availability of the sensitive material. [...]
CERN-TOTEM-NOTE-2015-003. - 2015.
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2015-08-27
16:24
RF Measurements of the New TOTEM Roman Pot / Berrig, O ; Biancacci, N ; Caspers, F ; Danisi, A ; Eberhardt, J ; Kuczerowski, J ; Minafra, N ; Salvant, B ; Vollinger, C
The TOTEM experiment has been designed to measure the total proton-proton cross section and to study the elastic and diffractive scattering at the LHC energy. [...]
CERN-TOTEM-NOTE-2015-002. - 2015. - 17 p.
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2015-05-13
12:23
LHC Optics Measurement with Proton Tracks Detected by the Roman Pots of the TOTEM Experiment / Nemes, Frigyes J (Wigner Research Centre for Physics, RMKI, Budapest, Hungary; and Department of Atomic Physics, ELTE University, Budapest, Hungary.) ; Niewiadomski, Hubert (Case Western Reserve University, Dept. of Physics, Cleveland, OH, USA.)
Precise knowledge of the beam optics at the LHC is crucial to fulfill the physics goals of the TOTEM experiment, where the kinematics of the scattered protons is reconstructed with the near-beam telescopes – so-called Roman Pots (RP). [...]
CERN-TOTEM-NOTE-2015-001. - 2015. - 27 p.
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2014-10-13
14:59
CMS-TOTEM feasibility studies for single diffractive Z, W, J/ψ and central exclusive dijet production in pp collisions at \sqrt(s) = 13 TeV / CMS, Collaboration ; TOTEM, Collaboration
Feasibility studies for the measurement of single-diffractive Z or W boson production in the electron and muon channels, J/ψ production in the muon decay channel and central exclusive dijet production, in proton-proton (pp) collisions with the Compact Muon Solenoid (CMS) and TOTal Elastic and diffractive cross section Measurement (TOTEM) experiments are presented. [...]
CERN-TOTEM-NOTE-2014-002 ; CMS-PAS-FSQ-14-001. - 2014.
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2014-08-01
17:16
Performance studies of the Roman Pot timing detectors in the forward region of the IP5 at LHC / Berretti, M (CERN)
The detection of Central Diffractive (CD) events at high luminosity requires the measurement the time of flight of the leading protons in order to resolve the pileup contribution and reduce the beam-beam background. [...]
CERN-TOTEM-NOTE-2014-001. - 2014. - 22 p.
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2013-06-24
12:08
RF Characterization of the New TOTEM Roman Pot / Minafra, Nicola (U. Bari (main) ; INFN, Bari)
The aim of the present work is the optimization of the Roman Pot (RP) design to minimize the beam-coupling impedance, in particular when the RP is inserted very close to the beam. [...]
CERN-TOTEM-NOTE-2013-003. - 2013. - 13 p.
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2013-06-14
10:55
Geant4 simulations for the TOTEM upgrade program / Nemes, F (Wigner RCP, Budapest)
The TOTEM physics goals require the installation of new cylindrical shaped Roman Pots, which are radiofrequency optimized and are able to house timing detectors. [...]
CERN-TOTEM-NOTE-2013-002. - 2013. - 19 p.
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