Preprints

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2025-04-25
11:03
arXiv [PUBDB-2025-01479] Preprint
; ; ; et al
Prospects for a survey of the galactic plane with the Cherenkov Telescope Array
[arXiv:2310.02828]
 GO
Approximately one hundred sources of very-high-energy (VHE) gamma rays are known in the Milky Way, detected with a combination of targeted observations and surveys. A survey of the entire Galactic Plane in the energy range from a few tens of GeV to a few hundred TeV has been proposed as a Key Science Project for the upcoming Cherenkov Telescope Array Observatory (CTAO). [...]
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2025-04-25
10:51
arXiv [PUBDB-2025-01478] Preprint
; ; ; et al
Indirect search for dark matter with a combined analysis of dwarf spheroidal galaxies from VERITAS
[arXiv:2407.16518]
 GO
Understanding the nature and identity of dark matter is a key goal in the physics community. In the case that TeV-scale dark matter particles decay or annihilate into Standard Model particles, very-high-energy (VHE) gamma rays (greater than 100 GeV) will be present in the final state. [...]
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2025-04-24
14:16
arXiv [PUBDB-2025-01474] Preprint
; ; ; et al
Test of lepton flavor universality with measurements of $R(D^{+})$ and $R(D^{*+})$ using semileptonic $B$ tagging at the Belle II experiment
[Belle II Preprint 2025-011; KEK Preprint 2025-9; arXiv:2504.11220]
 GO
We report measurements of the ratios of branching fractions $\mathcal{R}(D^{(*)+}) = \mathcal{B}(\overline{B}{}^0 \to D^{(*)+} \,\tau^- \, \overline{\nu}_\tau) / \mathcal{B}(\overline{B}{}^0 \to D^{(*)+} \, \ell^- \, \overline{\nu}_\ell)$, where $\ell$ denotes either an electron or a muon. These ratios test the universality of the charged-current weak interaction. [...]
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2025-04-24
14:12
arXiv [PUBDB-2025-01473] Preprint
; ; ; et al
Search for $B^0 \to K^{\ast 0} \tau^+ \tau^-$ decays at the Belle II experiment
[Belle II Preprint 2025-010; KEK Preprint 2025-8; arXiv:2504.10042]
 GO
We present a search for the rare flavor-changing neutral-current decay $B^0 \to K^{\ast 0} \tau^+ \tau^-$ with data collected by the Belle II experiment at the SuperKEKB electron-positron collider. The analysis uses a 365 fb$^{-1}$ data sample recorded at the center-of-mass energy of the $\Upsilon(4S)$ resonance. [...]
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2025-04-24
14:10
arXiv [PUBDB-2025-01472] Preprint
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Measurements of the branching fractions of $\Xi_{c}^{+}\to \Sigma^{+}K_{S}^{0}$, $\Xi_{c}^{+}\to \Xi^{0}\pi^{+}$, and $\Xi_{c}^{+}\to \Xi^{0}K^{+}$ at Belle and Belle II
[Belle II Preprint 2025-005; KEK Preprint 2025-2; arXiv:2503.17643]
 GO
Using 983.0 $\rm{fb}^{-1}$ and 427.9 $\rm{fb}^{-1}$ data samples collected with the Belle and Belle II detectors at the KEKB and SuperKEKB asymmetric energy $e^+e^-$ colliders, respectively, we present studies of the Cabibbo-favored $\Xi_c^+$ decays ${\Xi_{c}^{+}\to \Sigma^{+}K_{S}^{0}}$ and $\Xi_{c}^{+}\to \Xi^{0}\pi^{+}$, and the singly Cabibbo-suppressed decay $\Xi_{c}^{+}\to \Xi^{0}K^{+}$. The ratios of branching fractions of ${\Xi_{c}^{+}\to \Sigma^{+}K_{S}^{0}}$ and $\Xi_{c}^{+}\to \Xi^{0}K^{+}$ relative to that of $\Xi_{c}^{+}\to\Xi^{-}\pi^{+}\pi^{+}$ are measured for the first time, while the ratio ${\cal B}(\Xi_{c}^{+}\to\Xi^{0}\pi^{+})/{\cal B}(\Xi_{c}^{+}\to\Xi^{-}\pi^{+}\pi^{+}) $ is also determined and improved by an order of magnitude in precision. [...]
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2025-04-24
14:08
OpenAccess [PUBDB-2025-01470] Preprint
; ; ; et al
Measurement of the Branching Fraction of $\Lambda_c^+ \to p K_S^0 \pi^0$ at Belle
[Belle II Preprint: 2024-022; KEK preprint: 2024-20; arXiv:2503.04371]
We report a precise measurement of the ratio of branching fractions $\mathcal{B}(\Lambda_c^+\to p K_S^0 \pi^0)/\mathcal{B}(\Lambda_c^+\to p K^- \pi^+)$ using 980 fb$^{-1}$ of $e^+e^-$ data from the Belle experiment. We obtain a value of $\mathcal{B}(\Lambda_c^+\to p K_S^0 \pi^0)/\mathcal{B}(\Lambda_c^+\to p K^- \pi^+)=0.339\pm 0.002\pm 0.009$, where the first and second uncertainties are statistical and systematic, respectively. [...]
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2025-04-23
13:45
OpenAccess [PUBDB-2025-01429] Preprint
; ; ; et al
Shining light on the dark sector: search for axion-like particles and other new physics in photonic final states with FASER
[CERN-EP-2024-262; arXiv:2410.10363]
The first FASER search for a light, long-lived particle decaying into a pair of photons is reported. The search uses LHC proton-proton collision data at $ \sqrt{s} $ = 13.6 TeV collected in 2022 and 2023, corresponding to an integrated luminosity of 57.7 fb$^{−1}$ [...]
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2025-04-23
10:56
OpenAccess [PUBDB-2025-01422] Preprint
; ; ; et al
Underlying-event studies with strange hadrons in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
[CERN-EP-2024-105; arXiv:2405.05048]
Properties of the underlying-event in pp interactions are investigated primarily via the strange hadrons $K_{S}^{0}$, $\Lambda $ and $\bar{\Lambda }$, as reconstructed using the ATLAS detector at the LHC in minimum-bias pp collision data at $\sqrt{s} = 13$ TeV. The hadrons are reconstructed via the identification of the displaced two-particle vertices corresponding to the decay modes , $\Lambda \rightarrow \pi ^-p$ and $\bar{\Lambda }\rightarrow \pi ^+\bar{p}$. [...]
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2025-04-22
12:37
arXiv [PUBDB-2025-01408] Preprint
; ; ; et al
Resistively detected electron spin resonance and g- factor in few-layer exfoliated MoS$_2$ devices
[arXiv:2410.18758]
 GO
MoS$_2$ has recently emerged as a promising material for enabling quantum devices and spintronic applications. In this context, an improved physical understanding of the g-factor of MoS$_2$ depending on device geometry is of great importance. [...]
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2025-04-14
14:44
[PUBDB-2025-01355] Preprint
; ; ; et al
Determination of the first-generation quark couplings at the Z-pole
[DESY-25-063]
 GO
Electroweak Precision Measurements are stringent tests of the Standard Model and sensitive probes to New Physics. Accurate studies of the Z-boson couplings to the first-generation quarks, which are currently constrained from LEP data to a few percent, could reveal potential discrepancies from the theory predictions. [...]

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