Preprints

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2025-03-12
15:56
arXiv [PUBDB-2025-01025] Preprint
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Measurements of $|V_{cb}|$ and $|V_{ub}|$ from Belle and Belle II
[arXiv:2311.00375]
 GO
This proceeding summarizes recent measurements of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements $|V_{cb}|$ and $|V_{ub}|$ at the Belle and Belle~II experiments. It provides insights derived from both exclusive and inclusive determinations. [...]
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2025-03-12
15:14
arXiv [PUBDB-2025-01023] Preprint
; ; ; et al
Evaluation of planar silicon pixel sensors with the RD53A readout chip for the Phase-2 Upgrade of the CMS Inner Tracker
[CERN-CMS-NOTE-2023-005; arXiv:2307.01580]
 GO
The Large Hadron Collider at CERN will undergo an upgrade inorder to increase its luminosity to7.5 × 10$^{34}$ cm$^{-2}$s$^{-1}$. The increased luminosityduring this High-Luminosity running phase, starting around 2029,means a higher rate of proton-proton interactions, hence a largerionizing dose and particle fluence for the detectors. [...]
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2025-03-12
11:37
OpenAccess [PUBDB-2025-01021] Preprint
; ; ; et al
Evaluation of HPK $n^+$-$p$ planar pixel sensors for the CMS Phase-2 upgrade
[CMS-NOTE-2023-002; arXiv:2212.04793]
To cope with the challenging environment of the planned high luminosity upgrade of the Large Hadron Collider (HL-LHC), scheduled to start operation in 2029, CMS will replace its entire tracking system. The requirements for the tracker are largely determined by the long operation time of 10 years with an instantaneous peak luminosity of up to 7.5 x 10$^{34}$ cm$^{-2}$s$^{-1}$ in the ultimate performance scenario. [...]
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2025-03-12
10:52
OpenAccess [PUBDB-2025-01020] Preprint
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Gertsenshtein–Zel’dovich effect: a plausible explanation for fast radio bursts?
[arXiv:2202.00032]
We present a novel model that may provide an interpretation for a class of non-repeating fast radio bursts (FRBs) – short (⁠|$\lt 1~\rm {s}$|⁠), bright (⁠|$0.1 - 1000~\rm {Jy}$|⁠) bursts of MHz–GHz frequency radio waves. The model has three ingredients – compact object, a progenitor with effective magnetic field strength around 10^10 Gauss, and high-frequency (MHz–GHz) gravitational waves (GWs). [...]
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2025-03-07
10:26
OpenAccess [PUBDB-2025-00983] Preprint
; ; ; et al
The Pixel Luminosity Telescope: a detector for luminosity measurement at CMS using silicon pixel sensors
[CERN-CMS-NOTE-2022-007; CMS-DN-21-008; arXiv:2206.08870]
The Pixel Luminosity Telescope is a silicon pixel detector dedicated to luminosity measurement at the CMS experiment at the LHC. It is located approximately 1.75 m from the interaction point and arranged into 16 “telescopes”, with eight telescopes installed around the beam pipe at either end of the detector and each telescope composed of three individual silicon sensor planes. [...]
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2025-03-05
13:35
arXiv [PUBDB-2025-00955] Preprint
; ; ; et al
Updated predictions for toponium production at the LHC
[CERN-TH-2024-222; DESY 24-207; P3H-24-104; TTP24-048; arXiv:2412.16685]
 GO
We provide an update on QCD predictions for top-quark pair production close to threshold including bound state effects at the Large Hadron Collider. We compute the top-quark pair invariant mass distribution $d\sigma/dM_{t\bar{t}}$, including Coulomb resummation for bound-state effects, as well as threshold resummation for emissions of soft and collinear gluons. [...]
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2025-03-03
10:57
OpenAccess [PUBDB-2025-00905] Preprint
; ; ; et al
Know your footprint - Evaluation of the professional carbon footprint for individual researchers in high energy physics and related fields
[arXiv:2403.03308]
Understanding the environmental impact of professional activities is becoming paramount in current times, especially within sectors that historically have had significant resource utilisation, such as High Energy Physics (HEP) and related fields. The young High Energy Physicists (yHEP) association launched the Know your footprint (Kyf) campaign to evaluate the CO$_\text{2}$-equivalent emissions generated by HEP-related research. [...]
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2025-02-28
13:47
OpenAccess [PUBDB-2025-00886] Preprint
; ; ; et al
Development of systematic uncertainty-aware neural network trainings for binned-likelihood analyses at the LHC
[CERN-EP-2025-005; CMS-MLG-23-005; arXiv:2502.13047]
We propose a neural network training method capable of accounting for the effects of systematic variations of the data model in the training process and describe its extension towards neural network multiclass classification. The procedure is evaluated on the realistic case of the measurement of Higgs boson production via gluon fusion and vector boson fusion in the $\tau\tau$ decay channel at the CMS experiment. [...]
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2025-02-28
13:45
OpenAccess [PUBDB-2025-00885] Preprint
; ; ; et al
Search for medium effects using jet axis decorrelation in inclusive jets from PbPb collisions at $\sqrt{s_\text{NN}}$ = 5.02 TeV
[CERN-EP-2024-345; CMS-HIN-24-010; arXiv:2502.13020]
The jet axis decorrelation in inclusive jets is studied using lead-lead (PbPb) collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The jet axis decorrelation is defined as the angular difference between two definitions of the jet axis. [...]
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2025-02-28
13:43
OpenAccess [PUBDB-2025-00884] Preprint
; ; ; et al
Observation of $\Lambda$ hyperon local polarization in pPb collisions at $\sqrt{s_\mathrm{NN}}$ = 8.16 TeV
[CERN-EP-2024-328; CMS-HIN-24-002; arXiv:2502.07898]
The polarization of the $\Lambda$ and $\overline{\Lambda}$ hyperons along the beam direction has been measured in proton-lead (pPb) collisions at a center-of-mass energy per nucleon pair of 8.16 TeV. The data were obtained with the CMS detector at the LHC and correspond to an integrated luminosity of 186.0 $\pm$ 6.5 nb$^{-1}$. [...]
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