CERN Accelerating science

CERN Preprints

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2021-08-05
09:06
Primordial blackholes from Gauss-Bonnet-corrected single field inflation / Kawai, Shinsuke (Sungkyunkwan U.) ; Kim, Jinsu (CERN)
Primordial blackholes formed in the early Universe via gravitational collapse of over-dense regions may contribute a significant amount to the present dark matter relic density. [...]
arXiv:2108.01340 ; CERN-TH-2021-115.
- 9 p.

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2021-08-05
09:06
Source-Agnostic Gravitational-Wave Detection with Recurrent Autoencoders / Moreno, Eric A. (Caltech) ; Vlimant, Jean-Roch (Caltech) ; Spiropulu, Maria (Caltech) ; Borzyszkowski, Bartlomiej (Gdansk Tech. U.) ; Pierini, Maurizio (CERN)
We present an application of anomaly detection techniques based on deep recurrent autoencoders to the problem of detecting gravitational wave signals in laser interferometers. [...]
arXiv:2107.12698.
- 16 p.

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2021-08-05
09:04
Pile-Up Mitigation using Attention / Maier, Benedikt (CERN) ; Narayanan, Siddharth M. ; de Castro, Gianfranco (Caltech, Pasadena (main)) ; Goncharov, Maxim (MIT) ; Paus, Christoph (MIT) ; Schott, Matthias (Mainz U.)
Particle production from secondary proton-proton collisions, commonly referred to as pile-up, impair the sensitivity of both new physics searches and precision measurements at LHC experiments. [...]
arXiv:2107.02779.
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2021-08-05
09:04
LHC physics dataset for unsupervised New Physics detection at 40 MHz / Govorkova, Ekaterina (CERN) ; Puljak, Ema (CERN) ; Aarrestad, Thea (CERN) ; Pierini, Maurizio (CERN) ; Woźniak, Kinga Anna (CERN ; Vienna U.) ; Ngadiuba, Jennifer (Fermilab)
In particle detectors at the Large Hadron Collider, tens of terabytes of data are produced every second from proton-proton collisions occurring at a rate of 40 megahertz. [...]
arXiv:2107.02157.
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2021-08-04
04:15
The Giant Radio Array for Neutrino Detection (GRAND) Project / Kotera, Kumiko (Malta U. ; Paris, Inst. Astrophys. ; CERN)
The GRAND project aims to detect ultra-high-energy neutrinos, cosmic rays and gamma rays, with an array of $200,000$ radio antennas over $200,000\,{\rm km}^2$, split into $\sim 20$ sub-arrays of $\sim 10,000\,{\rm km}^2$ deployed worldwide. [...]
arXiv:2108.00032 ; PoS(ICRC2021)1181.
- 8 p.

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2021-08-04
04:13
A search for spectral hardening in HAWC sources above 56 TeV / Malone, Kelly (Malta U. ; Los Alamos ; CERN)
The High Altitude Water Cherenkov (HAWC) Observatory is a wide-field-of-view gamma-ray observatory that is optimized to detect gamma rays between ~300 GeV and several hundred TeV. [...]
arXiv:2107.14358.
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2021-08-04
04:13
Bright Ångstrom and Picometre Free Electron Laser Based on the LHeC Energy Recovery Linac / Nergiz, Z. (Nigde U.) ; Mirian, N.S. (CERN ; DESY) ; Aksoy, A. (Ankara U.) ; Zhou, D. (KEK, Tsukuba) ; Zimmermann, F. (CERN) ; Aksakal, H. (Kahramanmaras U.)
The Large Hadron electron Collider (LHeC) is a proposed future particle-physics project colliding 60 GeV electrons from a six-pass recirculating energy-recovery Linac (ERL) with 7 TeV protons stored in the LHC. [...]
arXiv:2107.13331.
- 13 p.

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2021-08-02
15:15
Inclusive J/ψ production at midrapidity in pp collisions at √s = 13 TeV / ALICE Collaboration, CERN /ALICE
We report on the inclusive J/ψ production cross section measured at the CERN Large Hadron Collider in proton–proton collisions at a centre-of-mass energy s = 13 TeV. The J/ψ mesons are reconstructed in the e+e− decay channel and the measurements are performed at midrapidity (|y| < 0.9) in the transverse-momentum interval 0 < pT < 40 GeV/c, using a minimum-bias data sample corresponding to an integrated luminosity Lint = 32.2 nb−1 and an Electromagnetic Calorimeter triggered data sample with Lint = 8.3 pb−1. [...]
CERN-EP-2021-160.- Geneva : CERN, 2021 Draft (restricted): PDF;

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2021-08-02
09:41
The beauty of the rare: $B_{(s)}\rightarrow \mu^{+} \mu ^{-}$ at the LHCb / Ferreres-Solé, Silvia (NIKHEF, Amsterdam)
The latest and improved measurements in $B^0_{(s)}\rightarrow\mu^+ \mu^-$ processes have been performed by LHCb using full Run 1 and Run 2 data. [...]
arXiv:2106.15995.
- 4 p.

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2021-08-02
09:41
Recent Studies of Exotic Hadrons at the LHCb Experiment / Robertson, G. (Edinburgh U. ; SUNY, Stony Brook)
Recent results on studies of exotic hadrons at the LHCb experiment are summarised. [...]
arXiv:2107.14560.
- 6 p.

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