English
Related papers

Related papers: Leptoquark search at the Forward Physics Facility

200 papers

The general anomaly-free $U(1)'$ models allow non-universal lepton charges. We explore the sensitivities of FASER/FASER2, COHERENT and DUNE/T2HK precision experiments to the new gauge boson $Z'$ and the new CP-even scalar $\phi$. With…

High Energy Physics - Phenomenology · Physics 2023-09-15 Tobias Felkl , Tong Li , Jiajun Liao , Michael A. Schmidt

The FASER experiment at CERN has opened a new window in collider neutrino physics by detecting TeV-energy neutrinos produced in the forward direction at the LHC. Building on this success, this document outlines the scientific case and…

High Energy Physics - Experiment · Physics 2025-03-26 FASER Collaboration , Roshan Mammen Abraham , Xiaocong Ai , Saul Alonso-Monsalve , John Anders , Claire Antel , Akitaka Ariga , Tomoko Ariga , Jeremy Atkinson , Florian U. Bernlochner , Tobias Boeckh , Jamie Boyd , Lydia Brenner , Angela Burger , Franck Cadoux , Roberto Cardella , David W. Casper , Charlotte Cavanagh , Xin Chen , Dhruv Chouhan , Sebastiani Christiano , Andrea Coccaro , Stephane Débieux , Monica D'Onofrio , Ansh Desai , Sergey Dmitrievsky , Radu Dobre , Sinead Eley , Yannick Favre , Jonathan L. Feng , Carlo Alberto Fenoglio , Didier Ferrere , Max Fieg , Wissal Filali , Elena Firu , Edward Galantay , Ali Garabaglu , Stephen Gibson , Sergio Gonzalez-Sevilla , Yuri Gornushkin , Carl Gwilliam , Daiki Hayakawa , Michael Holzbock , Shih-Chieh Hsu , Zhen Hu , Giuseppe Iacobucci , Tomohiro Inada , Luca Iodice , Sune Jakobsen , Hans Joos , Enrique Kajomovitz , Hiroaki Kawahara , Alex Keyken , Felix Kling , Daniela Köck , Pantelis Kontaxakis , Umut Kose , Rafaella Kotitsa , Peter Krack , Susanne Kuehn , Thanushan Kugathasan , Lorne Levinson , Botao Li , Jinfeng Liu , Yi Liu , Margaret S. Lutz , Jack MacDonald , Chiara Magliocca , Toni Mäkelä , Yasuhiro Maruya , Lawson McCoy , Josh McFayden , Andrea Pizarro Medina , Matteo Milanesio , Théo Moretti , Mitsuhiro Nakamura , Toshiyuki Nakano , Laurie Nevay , Ken Ohashi , Hidetoshi Otono , Hao Pang , Lorenzo Paolozzi , Pawan Pawan , Brian Petersen , Titi Preda , Markus Prim , Michaela Queitsch-Maitland , Juan Rojo , Hiroki Rokujo , André Rubbia , Jorge Sabater-Iglesias , Osamu Sato , Paola Scampoli , Kristof Schmieden , Matthias Schott , Anna Sfyrla , Davide Sgalaberna , Mansoora Shamim , Savannah Shively , Yosuke Takubo , Noshin Tarannum , Ondrej Theiner , Simon Thor , Eric Torrence , Oscar Ivan Valdes Martinez , Svetlana Vasina , Benedikt Vormwald , Yuxiao Wang , Eli Welch , Monika Wielers , Benjamin James Wilson , Jialin Wu , Johannes Martin Wuthrich , Yue Xu , Samuel Zahorec , Stefano Zambito , Shunliang Zhang , Xingyu Zhao

The results of a previous search by the CMS Collaboration for squarks and gluinos are reinterpreted to constrain models of leptoquark (LQ) production. The search considers jets in association with a transverse momentum imbalance, using the…

High Energy Physics - Experiment · Physics 2018-08-15 CMS Collaboration

We study the impact of the coupling of neutrinos with a new light neutral gauge boson, $Z^\prime$, with a mass of less than 500 {\rm MeV} in FASER$\nu$ experiment. Scenarios in which a light gauge boson is coupled to neutrinos are motivated…

High Energy Physics - Phenomenology · Physics 2021-09-01 Majid Bahraminasr , Pouya Bakhti , Meshkat Rajaee

A search is performed for third-generation scalar leptoquarks and heavy right-handed neutrinos in events containing one electron or muon, one hadronically decaying tau lepton, and at least two jets, using a sqrt(s) = 13 TeV pp collision…

High Energy Physics - Experiment · Physics 2017-08-08 CMS Collaboration

Proton-proton collisions at energy-frontier facilities produce an intense flux of high-energy light particles, including neutrinos, in the forward direction. At the LHC, these particles are currently being studied with the far-forward…

We investigate the possibility of detecting a scalar leptoquark, coupling to the electron and the top, at a linear collider. For coupling strength equalling the weak coupling constant, the present mass bounds are of the order of 300 GeV. We…

High Energy Physics - Phenomenology · Physics 2009-10-28 Debajyoti Choudhury

The FASER experiment studies the neutral decay products from LHC collision of 13.6 TeV centre of mass energy at 480m distant away. There could be Beyond Standard Model (BSM) particles such like dark photons or axion like particles etc..,…

High Energy Physics - Experiment · Physics 2024-10-31 Osamu Sato

The recent direct detection of neutrinos at the LHC has opened a new window on high-energy particle physics and highlighted the potential of forward physics for groundbreaking discoveries. In the last year, the physics case for forward…

We investigate the current LHC bounds on New Physics (NP) that contributes to $\bar B \to D^{(*)} l\bar\nu$ for $l = (e,\mu,\tau)$ by considering both leptoquark (LQ) models and an effective-field-theory (EFT) Hamiltonian. Experimental…

High Energy Physics - Phenomenology · Physics 2022-08-23 Syuhei Iguro , Michihisa Takeuchi , Ryoutaro Watanabe

We present the latest physics results from the FASER experiment at the LHC. Using $pp$ collision data at $\sqrt{s} = 13.6$ TeV collected during LHC Run 3, FASER reports new results on four fronts: a search for dark photons with an improved…

High Energy Physics - Experiment · Physics 2026-04-20 Shunliang Zhang , Zhen Hu

A high energy muon collider can provide new and complementary discovery potential to the LHC or future hadron colliders. Leptoquarks are a motivated class of exotic new physics models, with distinct production channels at hadron and lepton…

High Energy Physics - Phenomenology · Physics 2021-11-10 Pouya Asadi , Rodolfo Capdevilla , Cari Cesarotti , Samuel Homiller

The measurements of hadron and lepton-pair production cross sections and leptonic forward-backward asymmetries performed with the L3 detector at centre-of-mass energies between 130 GeV and 189 GeV are used to search for new physics…

High Energy Physics - Experiment · Physics 2012-08-27 L3 Collaboration

We study the phenomenology of two leptoquarks, the Standard Model $SU(2)$ singlets $S_1$ and $U_1$, with regard to the latest experimental data from the low-energy flavor physics measurements, LHC, and the IceCube neutrino experiment. We…

High Energy Physics - Phenomenology · Physics 2020-04-22 Ilja Doršner , Svjetlana Fajfer , Monalisa Patra

A search for second and third generation scalar and vector leptoquarks produced in ep collisions via the lepton flavour violating processes ep -> mu X and ep -> tau X is performed by the H1 experiment at HERA. The full data sample taken at…

High Energy Physics - Experiment · Physics 2015-05-27 H1 Collaboration

Leptoquark searches are considered for future experiments at HERA, Tevatron, LHC, TESLA and THERA. Expected exclusion limits from direct leptoquark searches (leptoquark pair production and single leptoquark production) are compared with…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. F. Zarnecki

We have searched for second generation leptoquark (LQ) pairs in the \mu\mu+jets channel using 94+-5 pb^{-1} of pbar-p collider data collected by the D0 experiment at the Fermilab Tevatron during 1993-1996. No evidence for a signal is…

High Energy Physics - Experiment · Physics 2008-11-26 B. Abbott

After several gravitational wave transients were discovered since 2015, studying neutrino signals coincident with the gravitational wave events now becomes an important mission for the existing neutrino experiments. Unfortunately, no…

High Energy Astrophysical Phenomena · Physics 2019-08-19 Zhaokan Cheng , Jingbo Zhang , Chan Fai Wong , Wei Wang

The Standard Model of particle physics is still lacking an understanding of the generation and nature of neutrino masses. A favorite theoretical scenario (the see-saw mechanism) is that both Dirac and Majorana mass terms are present,…

High Energy Physics - Experiment · Physics 2019-08-14 Alain Blondel , E. Graverini , N. Serra , M. Shaposhnikov

Searches for first generation scalar and vector leptoquarks, and for squarks in R-parity violating SUSY models with the direct decay of the squark into Standard Model particles, have been performed using e+e- collisions collected with the…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL collaboration , G. Abbiendi