CERN Accelerating science

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1.
Status and prospects of the LHCf experiment / LHCf Collaboration
The Large Hadron Collider forward (LHCf) experiment at the Large Hadron Collider (LHC) measures neutral particle production in the very forward region of proton-proton and proton-ion collisions, aiming to improve hadronic interaction models (HIMs) used in ultra-high-energy cosmic ray (UHECR) simulations. This paper presents recent experimental activities of LHCf. [...]
2024 - 7 p. - Published in : PoS ICHEP2024 (2025) 687 Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024, pp.687
2.
Reconstruction of multiple calorimetric clusters in the LHCf experiment with machine learning techniques / LHCf Collaboration
One of the major challenges in the Large Hadron Collider forward (LHCf) experiment is the accurate reconstruction of calorimetric clusters when multiple particles hit the same detector tower simultaneously. Traditional reconstruction methods struggle with overlapping signals, especially in events involving more than two particles or a combination of photons and neutrons. [...]
2024 - 7 p. - Published in : PoS ICHEP2024 (2025) 1016 Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024, pp.1016
3.
LHCf Run II physics results in proton-proton collisions at $\sqrt{s}$ = 13 TeV / Tiberio, A (INFN, Florence) ; Adriani, O (INFN, Florence ; Florence U.) ; Berti, E (INFN, Florence ; Florence U.) ; Betti, P (INFN, Florence ; Florence U.) ; Bonechi, L (INFN, Florence) ; Bongi, M (INFN, Florence ; Florence U.) ; D'Alessandro, R (INFN, Florence ; Florence U.) ; Detti, S (INFN, Florence) ; Haguenauer, M (Ecole Polytechnique) ; Itow, Y (Nagoya U., ISEE ; KMI, Nagoya) et al.
The LHC-forward experiment (LHCf), located at the Large Hadron Collider (LHC), is designed to measure the production cross section of neutral particles in the very-forward region, covering the pseudorapidity region above 8.4 (up to zero-degree particles). By measuring the very-forward particle production rates at the highest energy possible at an accelerator, LHCf will provide fundamental informations to improve phenomenological hadronic interaction models used in the simulation of air-showers induced by ultra-high-energy cosmic rays in the atmosphere. [...]
2022 - 6 p. - Published in : PoS ICHEP2022 (2022) 121 Fulltext: PDF;
In : 41st International Conference on High Energy Physics (ICHEP 2022), Bologna, Italy, 6 - 13 Jul 2022, pp.121
4.
The Gbar project, or how does antimatter fall? / Indelicato, Paul (Paris, Lab. Kastler Brossel) ; Chardin, G (CSNSM, Orsay) ; Grandemange, P (CSNSM, Orsay) ; Lunney, D (CSNSM, Orsay) ; Manea, V (CSNSM, Orsay) ; Badertscher, A (Zurich, ETH) ; Crivelli, P (Zurich, ETH) ; Curioni, A (Zurich, ETH) ; Marchionni, A (Zurich, ETH) ; Rossi, B (Zurich, ETH) et al.
The Einstein classical Weak Equivalence Principle states that the trajectory of a particle is independent of its composition and internal structure when it is only submitted to gravitational forces. This fundamental principle has never been directly tested with antimatter. [...]
2014 - 10 p. - Published in : Hyperfine Interact. 228 (2014) 141-150
In : 11th International Conference on Low Energy Antiproton Physics, Uppsala, Sweden, 10 - 15 Jun 2013, pp.141-150
5.
Measurement of the forward η meson production rate in p-p collisions at $ \sqrt{\textrm{s}} $ = 13 TeV with the LHCf-Arm2 detector / Piparo, G. (INFN, Catania ; Catania U.) ; Adriani, O. (INFN, Florence ; Florence U.) ; Berti, E. (INFN, Florence ; Florence U.) ; Betti, P. (INFN, Florence ; Florence U.) ; Bonechi, L. (INFN, Florence ; Florence U.) ; Bongi, M. (INFN, Florence ; Florence U.) ; D'Alessandro, R. (INFN, Florence ; Florence U.) ; Detti, S. (INFN, Florence ; Florence U.) ; Hagenauer, M. (LLR, Palaiseau) ; Itow, Y. (Nagoya U., ISEE ; KMI, Nagoya) et al. /LHCf
The forward η mesons production has been observed by the Large Hadron Collider forward (LHCf) experiment in proton-proton collision at √s=13 TeV. This paper presents the measurement of the inclusive production rate of η in pT < 1.1 GeV/c, expressed as a function of the Feynman-x variable. [...]
arXiv:2305.06633; CERN-EP-2023-076.- Geneva : CERN, 2023-10-27 - 19 p. - Published in : JHEP 2310 (2023) 169 Draft (restricted): PDF; Fulltext: CERN-EP-2023-076 - PDF; 2305.06633 - PDF; document - PDF;
6.
Results from the LHCf Run II in proton-proton collisions at $\sqrt{s}$ = 13 TeV / Tiberio, Alessio (INFN, Florence) ; Adriani, Oscar (INFN, Florence ; Florence U.) ; Berti, Eugenio (INFN, Florence ; Florence U.) ; Bonechi, Lorenzo (INFN, Florence) ; Bongi, Massimo (INFN, Florence ; Florence U.) ; D'Alessandro, Raffaello (INFN, Florence ; Florence U.) ; Castellini, Guido (IFAC, Florence) ; Haguenauer, Maurice (Ec. Polytech., Palaiseau (main)) ; Itow, Yoshitaka (Nagoya U., ISEE ; Nagoya U. (main)) ; Kasahara, Katsuaki (Shibaura Inst. Tech.) et al.
The LHCf experiment, at the Large Hadron Collider (LHC), consists of two small independent calorimeters placed 140 metres away, on opposite sides of the ATLAS interaction point (IP1). LHCf has the capability to measure zero-degree neutral particles, covering the pseudorapidity region above 8.4. [...]
2022 - 6 p. - Published in : PoS EPS-HEP2021 (2022) 105 Fulltext: PDF;
In : European Physics Society conference on High Energy Physics 2021, Online, Online, 26 - 30 Jul 2021, pp.105
7.
Recent results from the LHCf and RHICf experiments / LHCf Collaboration
The Large Hadron Collider forward and the Relativistic Heavy Ion Collider forward experiments measured forward particles produced in high-energy hadron collisions at the LHC and RHIC. Using compact calorimeters neutral particles produced in pseudorapidities η >8.4 and η >6.0 are observed by the respective experiments. [...]
2019 - 8 p. - Published in : EPJ Web Conf. 208 (2019) 05004 Fulltext: PDF;
In : 20th International Symposium on Very High Energy Cosmic Ray Interactions, Nagoya, Japan, 21 - 25 May 2018, pp.05004
8.
LHCf plan for proton-oxygen collisions at LHC / LHCf Collaboration
The LHCf experiment is designed to provide precise measurements of very forward neutral particle production from high energy proton-proton, proton-ion and ion-ion collisions. This information is necessary to test and tune hadronic interaction models used by ground-based cosmic rays experiments to extract the average composition of Ultra High Energy Cosmic Rays. [...]
SISSA, 2022 - 9 p. - Published in : PoS ICRC2021 (2022) 348 Fulltext: PDF;
In : 37th International Cosmic Ray Conference (ICRC 2021), Berlin, Germany, 15 - 22 Jul 2021, pp.348
9.
Status and Prospects of the LHCf and RHICf experiments / LHCf Collaboration
Precise understanding of hadronic interactions at high energies is a key to improve mass composition measurements of very high energy cosmic-rays and to solve the muon excess issue observed in high energy cosmic-ray experiments using an air-shower technique. The LHCf and RHICf experiments measures the differential production cross sections of very forward neutral particle as photons, neutral pions and neutrons at LHC and RHIC, respectively. [...]
SISSA, 2022 - 9 p. - Published in : PoS ICRC2021 (2022) 301 Fulltext: PDF;
In : 37th International Cosmic Ray Conference (ICRC 2021), Berlin, Germany, 15 - 22 Jul 2021, pp.301
10.
Very-forward $\pi^0$ production cross section in proton-proton collisions at $\sqrt {s}$ = 13 TeV measured with the LHCf experiment / LHCf Collaboration
The LHCf experiment, situated at the LHC accelerator, is composed of two independent detectors located at 140 metres from the ATLAS interaction point (IP1) on opposite sides along the beam axis. LHCf covers the pseudorapidity region above 8.4, with the capability to measure zero-degree neutral particles. [...]
SISSA, 2021 - 9 p. - Published in : PoS ICRC2021 (2021) 386 Fulltext: PDF;
In : 37th International Cosmic Ray Conference (ICRC 2021), Berlin, Germany, 15 - 22 Jul 2021, pp.386

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