CERN Accelerating science

CERN Preprints

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2021-09-15
04:51
$\rm{\Lambda^{+}_{c}}$ production cross section in pp and p--Pb collisions down to $p_{\rm T}$ = 0 at $\sqrt{s_{\rm NN}}$ = 5.02 TeV measured with ALICE / Kalteyer, Annalena Sophie (Darmstadt, GSI ; Heidelberg U.)
The open heavy-flavour hadron measurements in proton--proton and proton--lead collisions give insight into the charm production and hadronization mechanisms. [...]
arXiv:2109.05949.
- 5 p.

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2021-09-15
04:46
Unveiling Hidden Physics at the LHC / Fischer, Oliver (Liverpool U.) ; Mellado, Bruce (U. Witwatersrand, Johannesburg, Sch. Phys. ; iThemba LABS) ; Antusch, Stefan (Basel U.) ; Bagnaschi, Emanuele (PSI, Villigen) ; Banerjee, Shankha (CERN) ; Beck, Geoff (U. Witwatersrand, Johannesburg, Sch. Phys. ; iThemba LABS) ; Belfatto, Benedetta (Pisa U. ; INFN, Pisa) ; Bellis, Matthew (Siena Coll., Loudonville) ; Berezhiani, Zurab (L'Aquila U. ; INFN, Aquila) ; Blanke, Monika (KIT, Karlsruhe ; KIT, Karlsruhe, TTP) et al.
The field of particle physics is at the crossroads. [...]
arXiv:2109.06065.
- 70 p.

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2021-09-15
04:43
Apparent strangeness enhancement from multiplicity selection in high energy proton-proton collisions / Loizides, Constantin (Oak Ridge) ; Morsch, Andreas (CERN)
The increase of strange-particle yields relative to pions versus charged-particle multiplicity in proton-proton (pp) collisions at the LHC is usually described by microscopic or hydrodynamical models as a result of the increasing density of produced partons or strings and their interactions. [...]
arXiv:2109.05181.
- 23 p.

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2021-09-14
07:32
Nonlocal Activation of Bound Entanglement via Local Quantum Zeno Dynamics / Ozaydin, Fatih (Tokyo City U.) ; Bayindir, Cihan (Istanbul, Tech. U. ; Bogazici U. ; CERN) ; Altintas, Azmi Ali (Okan U., Istanbul)
Bound entanglement was shown to be activated [Phys. [...]
arXiv:2109.02214.
- 2021. - 6 p.

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2021-09-14
04:49
The hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle / José, Teseo San ; Cè, Marco ; Gérardin, Antoine ; von Hippel, Georg ; Meyer, Harvey B. ; Miura, Kohtaroh ; Ottnad, Konstantin ; Risch, Andreas (NIC, Zeuthen) ; Wilhelm, Jonas ; Wittig, Hartmut
As present and future experiments, on both the energy and precision frontiers, look to identify new physics beyond the Standard Model, we require more precise determinations of fundamental quantities, like the QED and electroweak couplings at various momenta. [...]
arXiv:2109.04537 ; CERN-TH-2021-126 ; DESY-21-137 ; MITP/21-038.
- 9 p.

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2021-09-14
04:37
Publishing statistical models: Getting the most out of particle physics experiments / Cranmer, Kyle (Geneva U. ; CERN ; Paris U., VI-VII) ; Kraml, Sabine (Geneva U. ; CERN ; Paris U., VI-VII) ; Prosper, Harrison B. (Geneva U. ; CERN ; Paris U., VI-VII) ; Bechtle, Philip ; Bernlochner, Florian U. ; Bloch, Itay M. ; Canonero, Enzo ; Chrzaszcz, Marcin ; Coccaro, Andrea ; Conrad, Jan et al.
The statistical models used to derive the results of experimental analyses are of incredible scientific value and are essential information for analysis preservation and reuse. [...]
arXiv:2109.04981.
- 60 p.

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2021-09-13
18:56
Search for heavy resonances decaying to WW, WZ, or WH boson pairs in the lepton plus merged jet final state in proton-proton collisions at $\sqrt{s} = $ 13 TeV / CMS Collaboration
A search for new heavy resonances decaying to pairs of bosons (WW, WZ, or WH) is presented. [...]
arXiv:2109.06055 ; CMS-B2G-19-002 ; CERN-EP-2021-159 ; CMS-B2G-19-002-003.
- 2021.
Additional information for the analysis - CMS AuthorList - Fulltext

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2021-09-10
16:56
CERN n_TOF Facility : waste calculations and dose rate simulations of the n_TOF spallation target / Lebbos, Elias (CERN) ; Brugger, Markus (CERN) ; Cennini, Paolo (CERN) ; Vlachoudis, Vasilis (CERN)
The n_TOF facility, a spallation neutron source, uses a pure lead target for production of neutrons with a proton beam extracted from the Proton Synchrotron (PS) of CERN with an energy of 20 GeV. [...]
2007. - 50 p.
Full text

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2021-09-09
15:52
CP measurement of the Higgs-tau coupling / Hassanshahi, Mohammad Hassan (Imperial Coll., London) /CMS Collaboration
The Standard Model predicts that the Higgs boson is even under charge-parity inversion. In this report, we explain the result of the first direct measurement of the CP structure of the Yukawa coupling between the Higgs boson and tau leptons. [...]
CMS-CR-2020-263.- Geneva : CERN, 2020 - 4 p. Fulltext: PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020

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2021-09-09
15:52
CMS measurements of EFT parameters with top quarks / Tonon, Nicolas (DESY) /CMS Collaboration
Measurements carried out or reinterpreted within the framework of effective field theory (EFT) will constitute a key component of the LHC legacy in the quest towards physics beyond the standard model. Numerous EFT measurements were already published by the CMS Collaboration. In the top quark sector, four distinct approaches to EFT have been identified, each successfully applied in several analyses. We review the pros and cons of each approach, while illustrating them with recent analyses in which they were adopted..
CMS-CR-2020-276.- Geneva : CERN, 2020 - 7 p. Fulltext: PDF;
In : 13th International Workshop on Top-Quark Physics, Durham, United Kingdom, 14 - 18 Sep 2020

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