CERN Accelerating science

Preprints

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2019-06-25
04:21
Pentaquarks / Capriotti, Lorenzo
The field of exotic spectroscopy is extremely rich and productive. [...]
arXiv:1906.09190.
- 6 p.
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2019-06-25
04:21
Real-time discrimination of photon pairs using machine learning at the LHC / Benson, Sean ; Casais Vidal, Adrián ; Cid Vidal, Xabier ; Puig Navarro, Albert
ALPs and other as-yet unobserved $B$ decays to di-photon final states are a challenge to select in hadron collider environments due to the large backgrounds that come directly from the $pp$ collision. [...]
CERN-LHCb-DP-2019-004 ; arXiv:1906.09058.
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2019-06-25
04:21
Production rates and branching fractions of heavy hadrons & quarkonia at LHC experiments / Ronchese, P.
Measurements of production cross-sections of inclusive $b$-hadrons pairs, bottom mesons and baryons, and quarkonia at LHC will be shown. [...]
arXiv:1906.08992.
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2019-06-24
11:13
Assessment of the Mechanical Properties of Ultra-High Purity Niobium after Cold Work and Heat Treatment with the HL-LHC Crab Cavities as Benchmark / Gallifa Terricabras, Adria (Universidad de Oviedo (ES)) ; Amorim Carvalho, Alexandre (CERN) ; Aviles Santillana, Ignacio (CERN) ; Barriere, Simon (CERN) ; Calaga, Rama (CERN) ; Cano Pleite, Eduardo (CERN) ; Capatina, Ofelia (CERN) ; Crouvizier, Mickael Denis (CERN) ; Dassa, Luca (CERN) ; Meyer, Mickael Sebastien (CERN) et al.
The High Luminosity Large Hadron Collider (HL-LHC) is the upgrade of the world’s largest particle collider; it will allow the full exploitation of the LHC potential and its operation beyond 2025. [...]
CERN-ACC-2019-0050.
- 2019. - 7 p.
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2019-06-22
21:39
Properties of jet fragmentation using charged particles measured with the ATLAS detector in $pp$ collisions at $\sqrt{s}=13$ TeV / ATLAS Collaboration
This paper presents a measurement of quantities related to the formation of jets from high-energy quarks and gluons (fragmentation). [...]
arXiv:1906.09254 ; CERN-EP-2019-090.
- 2019. - 56 p, 56 p.
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2019-06-22
04:04
Precision measurement of the $\Lambda_c^+$, $\Xi_c^+$ and $\Xi_c^0$ baryon lifetimes / LHCb Collaboration
We report measurements of the lifetimes of the $\Lambda_c^+$, $\Xi_c^+$ and $\Xi_c^0$ charm baryons using proton-proton collision data at center-of-mass energies of 7 and 8\tev, corresponding to an integrated luminosity of 3.0 fb$^{-1}$, collected by the LHCb experiment. [...]
arXiv:1906.08350 ; LHCb-PAPER-2019-008 ; CERN-EP-2019-122.
- 9 p.
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2019-06-22
04:04
Time-sliced perturbation theory with primordial non-Gaussianity and effects of large bulk flows on inflationary oscillating features / Vasudevan, Anagha ; Ivanov, Mikhail M. ; Sibiryakov, Sergey ; Lesgourgues, Julien
We extend the formalism of time-sliced perturbation theory (TSPT) for cosmological large-scale structure to include non-Gaussian initial conditions. [...]
arXiv:1906.08697 ; CERN-TH-2019-091 ; INR-TH-2019-012 ; TTK-19-22.
- 39 p.
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2019-06-22
04:04
Cosmology with a Master Coupling in Flipped SU(5) $\times$ U(1): The $\lambda_6$ Universe / Ellis, John ; Garcia, Marcos A.G. ; Nagata, Natsumi ; Nanopoulos, Dimitri V. ; Olive, Keith A.
We propose a complete cosmological scenario based on a flipped SU(5) $\times$ U(1) GUT model that incorporates Starobinsky-like inflation, taking the subsequent cosmological evolution carefully into account. [...]
arXiv:1906.08483 ; KCL-PH-TH/2019-52 ; CERN-TH-2019-096 ; UT-19-14 ; ACT-04-19, MI-TH-1924 ; UMN-TH-3827/19 ; FTPI-MINN-19/18.
- 6 p.
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2019-06-22
04:04
Rare strange particle decays / Zamkovsky, Michal
The rare decays $\mathrm{K}^+\to \pi^+ \nu \bar{\nu}$ and $\mathrm{K_L}\to \pi^0 \nu \bar{\nu}$ are extremely attractive processes to study flavor physics because they are both exceptionally clean from a theoretical point of view. [...]
arXiv:1906.08567.
- 6 p.
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2019-06-22
04:03
A QCD analysis of LHCb D-meson data in p+Pb collisions / Eskola, Kari J. (Helsinki U. ; Jyvaskyla U.) ; Helenius, Ilkka (Helsinki U. ; Jyvaskyla U.) ; Paakkinen, Petja (Helsinki U. ; Jyvaskyla U.) ; Paukkunen, Hannu (Helsinki U. ; Jyvaskyla U.)
We scrutinize the recent LHCb data for D$^0$-meson production in p+Pb collisions within a next-to-leading order QCD framework. [...]
arXiv:1906.02512.
- 29 p.
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