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2024-06-24
12:27
3D silicon pixel sensors for the CMS experiment tracker upgrade / Zuolo, Davide (Colorado U.) /CMS Collaboration
The upgrade program of the CMS experiment in view of the LHC High Luminosity phase (HL-LHC) includes a replacement of the silicon pixel tracker. This is necessary to guarantee the same tracking performance of the current detector under harsher operating conditions, including higher radiation fluences and hit rates. [...]
CMS-CR-2024-100.- Geneva : CERN, 2024 - 3 p. Fulltext: PDF;
In : 16th Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, It, 26 May - 1 Jun 2024

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2024-06-24
12:27
Di-Higgs searches at CMS / Fontana Santos Alves, Bruno Afonso (Ecole Polytechnique) /CMS Collaboration
The production of Higgs boson pairs (HH) at the LHC is the main handle for the measurement of the Higgs boson interaction with itself and is thus a fundamental test of the Standard Model theory as well as for determining the Higgs potential. The most recent results from the CMS Collaboration on measurements of nonresonant HH production using different final states, and their combination using the data set collected by the CMS experiment at a centre of mass energy of 13 TeV, will be presented..
CMS-CR-2024-102.- Geneva : CERN, 2024 - 7 p. Fulltext: PDF;
In : 31st International Workshop on Deep Inelastic Scattering, Grenoble, Fr, 8 - 12 Apr 2024

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2024-06-24
12:27
3D silicon pixel sensors for the CMS experiment tracker upgrade / Zuolo, Davide (Colorado U.) /CMS Collaboration
The upgrade program of the CMS experiment in view of the LHC High Luminosity phase (HL-LHC) includes a replacement of the silicon pixel tracker. This is necessary to guarantee the same tracking performance of the current detector under harsher operating conditions, including higher radiation fluences and hit rates. [...]
CMS-CR-2024-100.- Geneva : CERN, 2024 - 3 p. Fulltext: PDF;
In : 16th Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, It, 26 May - 1 Jun 2024

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2024-06-24
12:27
Performance of the New CMS-HF Online Radiation Damage Monitoring System / , (Bogazici U.) ; Onel, Yasar (Iowa U.) ; Gulmez, Erhan (Bogazici U.)
The CMS-HF Calorimeter is designed to detect forward going particles. Discovery type events are believed to produce high energy particles going at forward angles. [...]
CMS-CR-2024-099.- Geneva : CERN, 2024 - 5 p. Fulltext: PDF;
In : The 20th International Conference on Calorimetry in Particle Physics, Tsukuba, Jp, 20 - 24 May 2024

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2024-06-24
12:27
EFT interpretations in the Higgs sector at the CMS Experiment / Guzel, Ahmet Oguz (Louvain U.) /CMS Collaboration
The search for new physics beyond the Standard Model continues to be a focal point in contemporary particle physics research. Despite exhaustive direct searches at the Large Hadron Collider yielding no definitive evidence of new particles, the scientific community is propelled towards indirect search methodologies. [...]
CMS-CR-2024-097.- Geneva : CERN, 2024 - 6 p. Fulltext: PDF;
In : 31st International Workshop on Deep Inelastic Scattering, Grenoble, Fr, 8 - 12 Apr 2024

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2024-06-22
07:40
Candidate de Sitter Vacua / McAllister, Liam (Cornell U., Phys. Dept.) ; Moritz, Jakob (CERN) ; Nally, Richard (Cornell U., Phys. Dept.) ; Schachner, Andreas (Cornell U., Phys. Dept. ; Munich U., ASC)
We construct compactifications of type IIB string theory that yield, at leading order in the $\alpha^\prime$ and $g_s$ expansions, de Sitter vacua of the form envisioned by Kachru, Kallosh, Linde, and Trivedi. [...]
CERN-TH-2024-090 ; arXiv:2406.13751. - 64 p.
Fulltext

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2024-06-22
07:34
LO, NLO, and NNLO Parton Distributions for LHC Event Generators / Cruz-Martinez, Juan (CERN) ; Forte, Stefano (INFN, Milan ; Milan U.) ; Laurenti, Niccolo (INFN, Milan ; Milan U.) ; Rabemananjara, Tanjona R. (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Rojo, Juan (Vrije U., Amsterdam ; NIKHEF, Amsterdam)
We present NNPDF4.0MC, a variant of the NNPDF4.0 set of parton distributions (PDFs) at LO, NLO and NNLO, with and without inclusion of the photon PDF, suitable for use with Monte Carlo (MC) event generators, which require PDFs to satisfy additional constraints in comparison to standard PDF sets. [...]
CERN-TH-2024-080 ; TIF-UNIMI-2024-4 ; arXiv:2406.12961. - 14 p.
Fulltext

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2024-06-21
04:47
Using graph neural networks to reconstruct charged pion showers in the CMS High Granularity Calorimeter / Alpana, A. (IISER, Pune) ; Kumar, N. (IISER, Pune) ; Aamir, M. (Maryland U.) ; Acar, B. (Lebanese U.) ; Adamov, G. (Serpukhov, IHEP ; GTU, Tbilisi) ; Adams, T. (Florida State U., Tallahassee (main)) ; Adloff, C. (Taiwan, Natl. Central U.) ; Afanasiev, S. (Dubna, JINR ; Higher Sch. of Economics, Moscow) ; Agrawal, C. (TIFR, Mumbai, DHEP) ; Agrawal, C. (IISER, Pune) et al.
A novel method to reconstruct the energy of hadronic showers in the CMS High Granularity Calorimeter (HGCAL) is presented. [...]
arXiv:2406.11937. -
Fulltext

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2024-06-20
17:56
Measurement of the polarizations of prompt and non-prompt $ \mathrm{J}/\psi $ and $\psi \text{(2S)} $ mesons produced in pp collisions at $ \sqrt{s} = $ 13 TeV / CMS Collaboration
The polarizations of prompt and non-prompt $ \mathrm{J}/\psi $ and $\psi \text{(2S)} $ mesons are measured in proton-proton collisions at $ \sqrt{s} = $ 13 TeV, using data samples collected by the CMS experiment in 2017 and 2018, corresponding to a total integrated luminosity of 103.3 fb$ ^{-1} $. [...]
arXiv:2406.14409 ; CMS-BPH-22-009 ; CERN-EP-2024-155 ; CMS-BPH-22-009-003. - 2024.
Additional information for the analysis - CMS AuthorList - Fulltext - CMS HEPData - Fulltext

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2024-06-20
09:49
Precision measurement of the $\Xi_b^-$ baryon lifetime
A sample of $pp$ collision data, corresponding to an integrated luminosity of 5.5 fb$^{-1}$ and collected by the LHCb experiment during Run 2, is used to measure the ratio of the lifetime of the $\Xi^-_b$ baryon to that of the $\Lambda^0_b$ baryon, $r_{\tau}\equiv\tau_{\Xi^-_b}/\tau_{\Lambda^0_b}$. [...]
CERN-EP-2024-139 ; LHCB-PAPER-2024-010. - 2024.
Fulltext - Related data file(s) - Supplementary information

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