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Journal articleMcGarrigle JM, Long KR, Prezado Y, 2024,
The FLASH effect-an evaluation of preclinical studies of ultra-high dose rate radiotherapy
, Frontiers in Oncology, Vol: 14, ISSN: 2234-943XFLASH radiotherapy (FLASH-RT) is a novel radiotherapy approach based on the use of ultra-high dose radiation to treat malignant cells. Although tumours can be reduced or eradicated using radiotherapy, toxicities induced by radiation can compromise healthy tissues. The FLASH effect is the observation that treatment delivered at an ultra-high dose rate is able to reduce adverse toxicities present at conventional dose rates. While this novel technique may provide a turning point for clinical practice, the exact mechanisms underlying the causes or influences of the FLASH effect are not fully understood. The study presented here uses data collected from 41 experimental investigations (published before March 2024) of the FLASH effect. Searchable databases were constructed to contain the outcomes of the various experiments in addition to values of beam parameters that may have a bearing on the FLASH effect. An in-depth review of the impact of the key beam parameters on the results of the experiments was carried out. Correlations between parameter values and experimental outcomes were studied. Pulse Dose Rate had positive correlations with almost all end points, suggesting viability of FLASH-RT as a new modality of radiotherapy. The collective results of this systematic review study suggest that beam parameter qualities from both FLASH and conventional radiotherapy can be valuable for tissue sparing and effective tumour treatment.
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Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2024,
Prompt and nonprompt ψ(2<i>S</i>) production in <i>p</i>Pb collisions at √<i>s</i><sub>NN</sub>=8.16 TeV
, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2024,
Search for supersymmetry in final states with disappearing tracks in proton-proton collisions at √<i>s</i>=13 TeV
, PHYSICAL REVIEW D, Vol: 109, ISSN: 2470-0010 -
Journal articleDatta A, Mazumdar D, Banerjee S, et al., 2024,
Erratum to “Magnetic, magnetocaloric and critical behavior studies in Heusler compounds Co<inf>2-x</inf>Cr<inf>1+x</inf>Al” [J. Magn. Magn. Mater. 591 (2024) 171743] (Journal of Magnetism and Magnetic Materials (2024) 591, (S0304885324000337), (10.1016/j.jmmm.2024.171743))
, Journal of Magnetism and Magnetic Materials, Vol: 596, ISSN: 0304-8853In the original article (https://doi.org/10.1016/j.jmmm.2024.171743), the units of the parameters in Table 1, and the values of the parameters in Table 3 and Table 4 are difficult to understand for a reader. The actual form of Table 1, Table 3 and Table 4 are given below. [Table prsented]
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Journal articleChakrani J, Dolan S, Avanzini MB, et al., 2024,
Parametrized uncertainties in the spectral function model of neutrino charged-current quasielastic interactions for oscillation analyses
, PHYSICAL REVIEW D, Vol: 109, ISSN: 2470-0010 -
Journal articleAbratenko P, Alterkait O, Andrade Aldana D, et al., 2024,
First Measurement of η Meson Production in Neutrino Interactions on Argon with MicroBooNE.
, Phys Rev Lett, Vol: 132We present a measurement of η production from neutrino interactions on argon with the MicroBooNE detector. The modeling of resonant neutrino interactions on argon is a critical aspect of the neutrino oscillation physics program being carried out by the DUNE and Short Baseline Neutrino programs. η production in neutrino interactions provides a powerful new probe of resonant interactions, complementary to pion channels, and is particularly suited to the study of higher-order resonances beyond the Δ(1232). We measure a flux-integrated cross section for neutrino-induced η production on argon of 3.22±0.84(stat)±0.86(syst) 10^{-41} cm^{2}/nucleon. By demonstrating the successful reconstruction of the two photons resulting from η production, this analysis enables a novel calibration technique for electromagnetic showers in GeV accelerator neutrino experiments.
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Journal articleKotani T, Miyata Y, Tsuboyama Y, et al., 2024,
Local intracellular stiffening of ascidian embryo in cleavage developmental stage observed by atomic force microscopy
, JAPANESE JOURNAL OF APPLIED PHYSICS, Vol: 63, ISSN: 0021-4922 -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2024,
Measurement of Ξ<sub>c</sub><SUP>+</SUP> production in <i>p</i>Pb collisions at √<i>s<sub>NN</sub></i>=8.16 TeV at LHCb
, PHYSICAL REVIEW C, Vol: 109, ISSN: 2469-9985 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2024,
Search for flavor changing neutral current interactions of the top quark in final states with a photon and additional jets in proton-proton collisions at √s=13 TeV
, Physical Review D (particles, fields, gravitation, and cosmology), Vol: 109, ISSN: 2470-0010A search for the production of a top quark in association with a photon and additional jets via flavorchanging neutral current interactions is presented. The analysis uses proton-proton collision data recordedby the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of138 fb−1. The search is performed by looking for processes where a single top quark is produced inassociation with a photon, or a pair of top quarks where one of the top quarks decays into a photon and anup or charm quark. Events with an electron or a muon, a photon, one or more jets, and missing transversemomentum are selected. Multivariate analysis techniques are used to discriminate signal and standardmodel background processes. No significant deviation is observed over the predicted background.Observed (expected) upper limits are set on the branching fractions of top quark decays: Bðt → uγÞ <0.95 × 10−5 (1.20 × 10−5) and Bðt → cγÞ < 1.51 × 10−5 (1.54 × 10−5) at 95% confidence level, assuminga single nonzero coupling at a time. The obtained limit for Bðt → uγÞ is similar to the current best limit,while the limit for Bðt → cγÞ is significantly tighter than previous results.
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Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2024,
Observation of the B<inf>c</inf><sup>+</sup>→J/ψπ<sup>+</sup>π<sup>0</sup> decay
, Journal of High Energy Physics, Vol: 2024The first observation of the Bc+→J/ψπ+π0 decay is reported with high significance using proton-proton collision data, corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV. The ratio of its branching fraction relative to the Bc+→J/ψπ+ channel is measured to be (Formula presented.) where the first uncertainty is statistical, the second systematic and the third related to imprecise knowledge of the branching fractions for B+ → J/ψK*+ and Bc+→J/ψπ+ decays, which are used to determine the π0 detection efficiency. The π+π0 mass spectrum is found to be consistent with the dominance of an intermediate ρ+ contribution in accordance with a model based on QCD factorisation.
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Journal articleAcar B, Adamov G, Adloff C, et al., 2024,
Timing performance of the CMS High Granularity Calorimeter prototype
, JOURNAL OF INSTRUMENTATION, Vol: 19, ISSN: 1748-0221 -
Journal articleHoenig D, Thielemann F, Karpa L, et al., 2024,
Trapping Ion Coulomb Crystals in an Optical Lattice
, PHYSICAL REVIEW LETTERS, Vol: 132, ISSN: 0031-9007 -
Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2024,
Determination of short- and long-distance contributions in B<SUP>0</SUP> → K<SUP>*0</SUP>μ<SUP>+</SUP>μ<SUP>-</SUP> decays
, PHYSICAL REVIEW D, Vol: 109, ISSN: 2470-0010 -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2024,
Amplitude Analysis of the <i>B</i><SUP>0</SUP> - <i>K</i>*<SUP>0</SUP> μ<SUP>+</SUP>μ<SUP>-</SUP> Decay
, PHYSICAL REVIEW LETTERS, Vol: 132, ISSN: 0031-9007 -
Conference paperFujii Y, 2024,
Charged Lepton Flavour Violation: experimental activities
Charged lepton flavour violation processes are powerful probes to investigate new physics beyond the standard model of particle physics. There are several ongoing activities and future projects. All of them are going to achieve the levels of sensitivity which are able to explore many new physics scenarios, corresponding to higher energy scale than that is directly accessible with present particle colliders. This paper introduces the recent and present experimental efforts in this area of searches, especially focusing on MEG, MEG2, Mu3e, Mu2e and COMET.
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2024,
Search for dark matter particles in W<SUP>+</SUP>W<SUP>-</SUP> events with transverse momentum imbalance in proton-proton collisions at √<i>s</i>=13 TeV
, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479 -
Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2024,
Search for <i>CP</i> violation in the phase space of <i>D</i><SUP>0</SUP> → <i>K</i><sub>S</sub><SUP>0</SUP><i>K</i><SUP>±</SUP>π<SUP>∓</SUP> decays with the energy test
, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2024,
Observation of WWγ Production and Search for Hγ Production in Proton-Proton Collisions at √ s=13 TeV
, PHYSICAL REVIEW LETTERS, Vol: 132, ISSN: 0031-9007 -
Journal articleYuzu K, Imamura H, Nozaki T, et al., 2024,
Mechanistic Modeling of Amyloid Oligomer and Protofibril Formation in Bovine Insulin
, JOURNAL OF MOLECULAR BIOLOGY, Vol: 436, ISSN: 0022-2836 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2024,
New structures in the J=ψJ=ψ mass spectrum in proton-proton collisions at √ s=13 TeV
, Physical Review Letters, Vol: 132, ISSN: 0031-9007A search is reported for near-threshold structures in the 𝐽/𝜓𝐽/𝜓 invariant mass spectrum produced in proton-proton collisions at √𝑠=13 TeV from data collected by the CMS experiment, corresponding to an integrated luminosity of 135 fb−1. Three structures are found, and a model with quantum interference among these structures provides a good description of the data. A new structure is observed with a local significance above 5 standard deviations at a mass of 6638+43−38(stat)+16−31(syst) MeV. Another structure with even higher significance is found at a mass of 6847+44−28(stat)+48−20(syst) MeV, which is consistent with the 𝑋(6900) resonance reported by the LHCb experiment and confirmed by the ATLAS experiment. Evidence for another new structure, with a local significance of 4.7 standard deviations, is found at a mass of 7134+48−25(stat)+41−15(syst) MeV. Results are also reported for a model without interference, which does not fit the data as well and shows mass shifts up to 150 MeV relative to the model with interference.
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Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2024,
Measurement of <i>J</i>/ψ-pair production in <i>pp</i> collisions at √<i>s</i>=13 TeV and study of gluon transverse-momentum dependent PDFs
, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479 -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2024,
Observation of Ξ<sub>b</sub><SUP>0</SUP>→ Ξ<sub>c</sub> <SUP>+</SUP> D<sub>s</sub><SUP>-</SUP> and Ξ<sub>b</sub><SUP>0</SUP> c D- s decays
, EUROPEAN PHYSICAL JOURNAL C, Vol: 84, ISSN: 1434-6044 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2024,
Search for long-lived heavy neutral leptons with lepton flavour conserving or violating decays to a jet and a charged lepton
, Journal of High Energy Physics, Vol: 2024A search for long-lived heavy neutral leptons (HNLs) is presented, which considers the hadronic final state and coupling scenarios involving all three lepton generations in the 2–20 GeV HNL mass range for the first time. Events comprising two leptons (electrons or muons) and jets are analyzed in a data sample of proton-proton collisions, recorded with the CMS experiment at the CERN LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb−1. A novel jet tagger, based on a deep neural network, has been developed to identify jets from an HNL decay using various features of the jet and its constituent particles. The network output can be used as a powerful discriminating tool to probe a broad range of HNL lifetimes and masses. Contributions from background processes are determined from data. No excess of events in data over the expected background is observed. Upper limits on the HNL production cross section are derived as functions of the HNL mass and the three coupling strengths VℓN to each lepton generation ℓ and presented as exclusion limits in the coupling-mass plane, as lower limits on the HNL lifetime, and on the HNL mass. In this search, the most stringent limit on the coupling strength is obtained for pure muon coupling scenarios; values of |VμN2| > 5 (4) × 10−7 are excluded for Dirac (Majorana) HNLs with a mass of 10 GeV at a confidence level of 95% that correspond to proper decay lengths of 17 (10) mm.
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Journal articleAbratenko P, Alterkait O, Andrade Aldana D, et al., 2024,
Measurement of ambient radon progeny decay rates and energy spectra in liquid argon using the MicroBooNE detector
, Physical Review D, Vol: 109, ISSN: 2470-0010We report measurements of radon progeny in liquid argon within the MicroBooNE time projection chamber (LArTPC). The presence of specific radon daughters in MicroBooNE's 85 metric tons of active liquid argon bulk is probed with newly developed charge-based low-energy reconstruction tools and analysis techniques to detect correlated Bi214-Po214 radioactive decays. Special datasets taken during periods of active radon doping enable new demonstrations of the calorimetric capabilities of single-phase neutrino LArTPCs for β and α particles with electron-equivalent energies ranging from 0.1 to 3.0 MeV. By applying Bi214-Po214 detection algorithms to data recorded over a 46-day period, no statistically significant presence of radioactive Bi214 is detected, and a limit on the activity is placed at <0.35 mBq/kg at the 95% confidence level. This bulk Bi214 radiopurity limit-the first ever reported for a liquid argon detector incorporating liquid-phase purification-is then further discussed in relation to the targeted upper limit of 1 mBq/kg on bulk Rn222 activity for the DUNE neutrino detector.
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Journal articleStray B, Ennis O, Hedges S, et al., 2024,
Centralized design and production of the ultra-high vacuum and laser-stabilization systems for the AION ultra-cold strontium laboratories
, AVS Quantum Science, Vol: 6, ISSN: 2639-0213This paper outlines the centralized design and production of the ultra-high-vacuum sidearm and laser-stabilization systems for the AION Ultra-Cold Strontium Laboratories. Commissioning data on the residual gas and steady-state pressures in the sidearm chambers, on magnetic field quality, on laser stabilization, and on the loading rate for the 3D magneto-optical trap are presented. Streamlining the design and production of the sidearm and laser stabilization systems enabled the AION Collaboration to build and equip in parallel five state-of-the-art Ultra-Cold Strontium Laboratories within 24 months by leveraging key expertise in the collaboration. This approach could serve as a model for the development and construction of other cold atom experiments, such as atomic clock experiments and neutral atom quantum computing systems, by establishing dedicated design and production units at national laboratories.
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Journal articleTumasyan A, Adam W, Andrejkovic JW, et al., 2024,
Study of azimuthal anisotropy of γ(1S) mesons in pPb collisions at √S<sub>NN</sub>=8.16 TeV
, PHYSICS LETTERS B, Vol: 850, ISSN: 0370-2693 -
Journal articleQue Z, Fan H, Loo M, et al., 2024,
LL-GNN: Low Latency Graph Neural Networks on FPGAs for High Energy Physics
, ACM TRANSACTIONS ON EMBEDDED COMPUTING SYSTEMS, Vol: 23, ISSN: 1539-9087 -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2024,
Curvature-bias corrections using a pseudomass method
, JOURNAL OF INSTRUMENTATION, Vol: 19, ISSN: 1748-0221 -
Journal articleTumasyan A, Adam W, Andrejkovic JW, et al., 2024,
Measurements of azimuthal anisotropy of nonprompt D<SUP>0</SUP> mesons in PbPb collisions at √s<sub>NN</sub>=5.02 TeV
, PHYSICS LETTERS B, Vol: 850, ISSN: 0370-2693 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2024,
Search for new Higgs bosons via same-sign top quark pair production in association with a jet in proton-proton collisions at √s=13 TeV
, Physics Letters B, Vol: 850, ISSN: 0370-2693A search is presented for new Higgs bosons in proton-proton (pp) collision events in which a same-sign top quarkpair is produced in association with a jet, via the pp → tH∕A → ttc and pp → tH∕A → ttu processes. Here, H andA represent the extra scalar and pseudoscalar boson, respectively, of the second Higgs doublet in the generalizedtwo-Higgs-doublet model (g2HDM). The search is based on pp collision data collected at a center-of-mass energyof 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb−1. Final stateswith a same-sign lepton pair in association with jets and missing transverse momentum are considered. NewHiggs bosons in the 200–1000 GeV mass range and new Yukawa couplings between 0.1 and 1.0 are targetedin the search, for scenarios in which either H or A appear alone, or in which they coexist and interfere. Nosignificant excess above the standard model prediction is observed. Exclusion limits are derived in the context ofthe g2HDM.
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