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2024-04-27
07:20
Strong evidence for the discovery of a gravitational wave background / Caprini, Chiara (CERN ; Geneva U.)
In 2023, pulsar timing arrays announced what could become the first ever discovery of a stochastic gravitational wave background: the random superposition of gravitational waves permeating the cosmos — a vestige of cosmic processes in the Universe. [...]
2024. - 3 p.

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2024-04-27
07:20
Cosmic-ray searches with the MATHUSLA detector / Alpigiani, Cristiano (Washington U., Seattle) ; Arteaga-Velázquez, J C (IFM-UMSNH, Michoacan) ; Blanco-Lira, Daniela (Puebla U., Mexico) ; Boscherini, Davide (INFN, Bologna) ; Caballero-Mora, K S (Chiapas Autonoma U.) ; Camarri, Paolo (INFN, Rome2 ; Rome U., Tor Vergata) ; Cardarelli, Roberto (INFN, Rome2) ; Ramírez, Dennis Cazar (San Francisco de Quito U.) ; Di Sciascio, Giuseppe (INFN, Rome2) ; Fernández Téllez, Arturo (Puebla U., Mexico) et al.
The performance of the proposed MATHUSLA detector as an instrument for studying the physics of cosmic rays by measuring extensive air showers is presented. [...]
arXiv:2311.07704. - 2023. - 64 p.
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2024-04-27
05:39
Probing Neutral Triple Gauge Couplings via $\boldsymbol{Z\gamma\,(\ell^+\ell^-\gamma)}$ Production at $\boldsymbol{e^+e^-}$ Colliders / Liu, Danning (Shanghai Jiao Tong U.) ; Xiao, Rui-Qing (Shanghai Jiao Tong U. ; King's Coll. London) ; Li, Shu (Shanghai Jiao Tong U. ; Maryland U. ; Peking U., CHEP) ; Ellis, John (Shanghai Jiao Tong U. ; King's Coll. London ; CERN) ; He, Hong-Jian (Shanghai Jiao Tong U. ; Peking U., CHEP) ; Yuan, Rui (Shanghai Jiao Tong U.)
Neutral triple gauge couplings (nTGCs) are absent in the Standard Model (SM) and at the dimension-6 level in the Standard Model Effective Field Theory (SMEFT), arising first from dimension-8 operators. [...]
KCL-PH-TH/2024-18 ; CERN-TH-2024-046 ; arXiv:2404.15937. - 24 p.
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2024-04-27
05:39
Benchmark of deep-inelastic-scattering structure functions at $\mathcal{O}(\alpha_s^3)$ / Bertone, Valerio (IRFU, Saclay) ; Karlberg, Alexander (CERN)
We present a benchmark comparison of the massless inclusive deep-inelastic-scattering (DIS) structure functions up to $\mathcal{O}(\alpha_s^3)$ in perturbative QCD. [...]
CERN-TH-2024-018 ; arXiv:2404.15711. - 21 p.
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2024-04-26
19:20
Performance of CMS muon reconstruction from proton-proton to heavy ion collisions
The performance of muon tracking, identification, triggering, momentum resolution, and momentum scale has been studied with the CMS detector at the LHC using data collected at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV in proton-proton (pp) and lead-lead (PbPb) collisions in 2017 and 2018, respectively, and at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 8.16 TeV in proton-lead (pPb) collisions in 2016. [...]
CERN-EP-2024-040 ; CMS-MUO-21-001-003. - 2024.
Additional information for the analysis - CMS AuthorList - Fulltext

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2024-04-26
15:04
Measurement of multijet azimuthal correlations and determination of the strong coupling in proton-proton collisions at $ \sqrt{s}= $ 13 TeV / CMS Collaboration
A measurement is presented of a ratio observable that provides a measure of the azimuthal correlations among jets with large transverse momentum $ p_{\mathrm{T}} $. [...]
arXiv:2404.16082 ; CMS-SMP-22-005 ; CERN-EP-2024-066 ; CMS-SMP-22-005-003. - 2024.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext

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2024-04-26
05:35
Nuclear charge radii of germanium isotopes around $N$ = 40 / Wang, S.J. (Peking U., SKLNPT) ; Kanellakopoulos, A. (Leuven U.) ; Yang, X.F. (Peking U., SKLNPT ; Leuven U.) ; Bai, S.W. (Peking U., SKLNPT) ; Billowes, J. (Manchester U.) ; Bissell, M.L. (Manchester U.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cheal, B. (Manchester U.) ; Devlin, C.S. (Manchester U.) ; Garcia Ruiz, R.F. (MIT ; CERN) et al.
Collinear laser spectroscopy measurements were performed on $^{68-74}$Ge isotopes ($Z = 32$) at ISOLDE-CERN, by probing the $4s^2 4p^2 \, ^3\!P_1 \rightarrow 4s^2 4p 5s \, ^3\!P_1^o$ atomic transition (269~nm) of germanium. [...]
arXiv:2404.06046. - 6 p.
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2024-04-26
05:25
The CCube reconstruction algorithm for the SoLid experiment / SoLid Collaboration
The SoLid experiment is a very-short-baseline experiment aimed at searching for nuclear reactor-produced active to sterile antineutrino oscillations. [...]
arXiv:2404.03580. - 21 p.
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2024-04-25
08:55
Constraints on dark matter models involving an $s$-channel mediator with the ATLAS detector in $pp$ collisions at $\sqrt{s} = 13$ TeV / ATLAS Collaboration
This paper reports a summary of searches for a fermionic dark matter candidate in the context of theoretical models characterised by a mediator particle exchange in the $s$-channel. [...]
arXiv:2404.15930 ; CERN-EP-2024-102. - 2024. - 55 p, 55 p.
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2024-04-25
07:32
Dielectrons at the LHC -- Chances and challenges / Appelshäuser, Harald
Dielectrons are unique observables in ultra-relativistic heavy-ion collisions. [...]
arXiv:2404.15064. -
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