CERN Accelerating science

SEE ALSO: PREPRINTS
ABOUT PREPRINTS
The Preprints collection aims to cover as far as possible all the grey literature in particle physics and its related technologies. The collection contains something like 400,000 documents, out of which about 50% can be accessed electronically. The documents originate from a variety of institutes all over the world. The collection, currently available, starts in 1979 and it has a full coverage of the arXiv.org e-Print archive since its beginning in 1991.

Preprints

Latest additions:
2017-10-22
19:14
Measurement of differential cross sections in the $\phi^*$ variable for inclusive $\mathrm{Z}$ boson production in pp collisions at $\sqrt{s} = $ 8 TeV
Measurements of differential cross sections ${\mathrm{d}}\sigma / {\mathrm{d}}\phi^*$ and double-differential cross sections ${\mathrm{d}}^2\sigma / {\mathrm{d}}\phi^*{\mathrm{d}}{|y|}$ for inclusive Z boson production are presented using the dielectron and dimuon final states. [...]
CERN-EP-2017-234 ; CMS-SMP-17-002-003.
- 2017.
Additional information for the analysis - CMS AuthorList - Fulltext

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2017-10-22
14:26
Pseudorapidity and transverse momentum dependence of flow harmonics in pPb and PbPb collisionsDifferential flow harmonics v_n in pPb and PbPb collisions
Measurements of azimuthal angular correlations are presented for high-multiplicity pPb collisions at $\sqrt{s_{\mathrm{NN}}} = $ 5.02 TeV and peripheral PbPb collisions at $\sqrt{s_{\mathrm{NN}}} = $ 2.76 TeV. [...]
CERN-EP-2017-218 ; CMS-HIN-15-008-003.
- 2017.
Additional information for the analysis - CMS AuthorList - Fulltext

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2017-10-21
07:17
General heat kernel coefficients for massless free spin-3/2 Rarita-Schwinger field / Karan, Sudip (Indian Sch. Mines, Dhanbad) ; Kumar, Shashank (Indian Sch. Mines, Dhanbad) ; Panda, Binata (Indian Sch. Mines, Dhanbad ; Bhubaneswar, Inst. Phys. ; CERN ; Bhubaneswar, Inst. Phys. ; CERN ; Bhubaneswar, Inst. Phys. ; CERN ; Bhubaneswar, Inst. Phys. ; CERN)
We review the general heat kernel method for the Dirac spinor field as an elementary example in any arbitrary background. [...]
arXiv:1709.08063.
- 21 p.
Preprint

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2017-10-21
07:17
NLO and off-shell effects in top quark mass determinations / Heinrich, G. (Munich, Max Planck Inst.) ; Maier, Andreas (CERN) ; Nisius, Richard (Munich, Max Planck Inst.) ; Schlenk, Johannes (Durham U., IPPP) ; Schulze, Markus (Humboldt U., Berlin) ; Scyboz, Ludovic (Munich, Max Planck Inst.) ; Winter, Jan (Michigan State U.)
We study the impact of different theoretical descriptions of top quark pair production on top quark mass measurements in the di-lepton channel [...]
MPP-2017-197 ; IPPP-17-69 ; HU-EP-17-22 ; MSUHEP-170922 ; arXiv:1709.08615.
- 33 p.
Preprint

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2017-10-20
16:53
Functional Tests of 2S Modules for the CMS Phase-2 Tracker Upgrade with a microTCA-based Readout System / Preuten, Marius (Aachen, Tech. Hochsch.) /CMS Collaboration
First full size 2S module prototypes for the CMS Phase-2 Tracker Upgrade have been assembled. With two sensors with realistic geometries and 16 CBC2 readout chips on two front-end hybrids these allow to study the characteristics of these complex objects.A microTCA based readout system was developed to test multiple front-end hybrids simultaneously. [...]
CMS-CR-2017-367.- Geneva : CERN, 2017 - 8 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
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
16:53
Precision measurements of electroweak parameters / Savin, Alexander (Wisconsin U., Madison) /ATLAS and CMS Collaborations
A set of selected precise measurements of the SM parameters from the LHC experiments is discussed. Results on W-mass measurement and forward-backward asymmetry in production of the Drell--Yan events in both dielectron and dimuon decay channels are presented together with results on the effective mixing angle measurements. [...]
CMS-CR-2017-336.- Geneva : CERN, 2017 - 9 p. Fulltext: PDF;
In : 37th International Symposium on Physics in Collision (PIC 2017), Prague, Czech Republic, 4 - 8 Sep 2017

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2017-10-20
16:53
The CMS ECAL Upgrade for Precision Crystal Calorimetry at the HL-LHC / Jofrehei, Arash (IPM, Tehran) /CMS Collaboration
The Compact Muon Solenoid Experiment (CMS) is operating at the Large Hadron Collider (LHC) with proton-proton collisions at 13 TeV center-of-mass energy and at a bunch spacing of 25 ns. Challenging running conditions for CMS are expected after the High-Luminosity upgrade of the LHC (HL-LHC). [...]
CMS-CR-2017-324.- Geneva : CERN, 2017 - 4 p. Fulltext: PDF;
In : 14th International Conference on Inorganic Scintillators and their Applications, Chamonix, France, 18 - 22 Sep 2017

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2017-10-20
07:41
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.
- 10 p.
Preprint

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