Publications database

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2023-03-20
10:24
OpenAccess [PUBDB-2023-01322] Preprint
; ; ; et al
Measurement of the branching fraction and CP asymmetry of $B^0 \rightarrow \pi^0 \pi^0$ decays using 2019-2021 Belle II data
[BELLE2-PUB-DRAFT-2022-006; arXiv:2303.08354]
We report measurements of the branching fraction and $CP$ asymmetry in $B^{0} \to \pi^{0} \pi^{0}$ decays reconstructed at Belle II in an electron-positron collision sample containing $198 \times 10^{6}$$B\overline{B}$ pairs. We measure a branching fraction $\mathcal{B}(B^0 \rightarrow \pi^0 \pi^0) = (1.38 \pm 0.27 \pm 0.22) \times 10^{-6}$ and a $\it CP$ asymmetry $\mathcal{A}_{\rm CP}(B^0 \rightarrow \pi^0 \pi^0) = 0.14 \pm 0.46 \pm 0.07$, where the first uncertainty is statistical and the second is systematic..
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2023-03-19
16:08

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2023-03-19
15:58

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2023-03-19
15:52
OpenAccess [PUBDB-2023-01314] Report
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Participation of DESY-Zeuthen in the IceCube project
[DESY-PRC-01-01]
129 pp. () [10.3204/PUBDB-2023-01314]  GO
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2023-03-19
15:27
OpenAccess [PUBDB-2023-01313] Report
; ; ; et al
Proposal to upgrade the longitudinal polarimeter
[DESY-PRC-00-06]
24 pp. () [10.3204/PUBDB-2023-01313]  GO
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2023-03-19
15:08
OpenAccess [PUBDB-2023-01312] Report

H1 Fast Track Trigger specification of the L1 system
[DESY-PRC-00-05]
21 pp. () [10.3204/PUBDB-2023-01312]  GO
The H1 collaboration has been asked to present to the October PRC meeting a “close to full” simula- tion of the first level part of the Fast Track Trigger algorithm, including the current understanding of the prospects for providing information to the level 1 H1 central trigger. This document contains the requested information, including a near to final specification of the full level 1 system. [...]
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2023-03-17
11:18
OpenAccess [PUBDB-2023-01306] Preprint
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A galactic breeze origin for the Fermi bubbles emission
[arXiv:2207.09189]
The origin of the Fermi bubbles, which constitute two gamma-ray emitting lobes above and below the Galactic plane, remains unclear. The possibility that this Fermi bubbles gamma-ray emission originates from hadronic cosmic rays advected by a subsonic Galactic outflow, or breeze, is here explored. [...]
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2023-03-17
09:47
OpenAccess [PUBDB-2023-01300] Journal Article
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VERITAS and Fermi-LAT Constraints on the Gamma-Ray Emission from Superluminous Supernovae SN2015bn and SN2017egm
[arXiv:2302.06686]
Superluminous supernovae (SLSNe) are a rare class of stellar explosions with luminosities ∼ 10–100 times greater than ordinary core-collapse supernovae. One popular model to explain the enhanced optical output of hydrogen-poor (Type I) SLSNe invokes energy injection from a rapidly spinning magnetar. [...]
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2023-03-16
12:05
arXiv [PUBDB-2023-01297] Journal Article
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Self-broadening and self-shift in the $3\nu_{2}$ band of ammonia from mid-infrared-frequency-comb spectroscopy
[arXiv:2205.04088]
We report the broadband absorption spectrum of the $3\nu_{2}$ band of $^{14}$NH$_{3}$ near 4 $\mu m$. The data was recorded using a mid-infrared frequency comb coupled to a homebuilt Fourier-transform spectrometer with a resolution of 0.00501 $cm^{-1}$. [...]
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2023-03-15
17:04
OpenAccess [PUBDB-2023-01292] Book/Dissertation / PhD Thesis
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Tau identification algorithms and study of the CP structure of the Yukawa coupling between the Higgs boson and tau leptons in CMS
[DESY-THESIS-2023-005]
Hamburg : Verlag Deutsches Elektronen-Synchrotron DESY, DESY-THESIS 191 pp. () [10.3204/PUBDB-2023-01292] = Dissertation, Universität Hamburg, 2023  GO
The measurement of the CP properties of the Yukawa coupling of the Higgs boson to τleptons is presented. The data set used for the analysis is collected by the CMS experiment atthe LHC during the Run 2 data-taking period in proton-proton collisions at √s = 13 TeV andcorresponds to an integrated luminosity of 137 fb−1. [...]
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