====== RF5: Charged Lepton Flavor Violation (electrons, muons and taus) ====== | Co-conveners | [[s.davidson@lupm.in2p3.fr,echenard@caltech.edu?subject=Snowmass RP05|Sacha Davidson (Lyon), Bertrand Echenard (Caltech)]] | | Mailing-list | ([[https://snowmass21.org/rare/start#communications|instructions]]) | | Slack channel | [[https://app.slack.com/client/TNNU4A570/C012J96JDCJ/details/top?cdn_fallback=2|rpf-05-clfv]] ([[https://snowmass21.org/rare/start#communications|instructions]]) | ====Description==== This topical group will address experimental and theoretical aspects of: - Muon and tau LFV reactions (mu->e gamma, mu->3e, mu-e conversion, tau decays) - Muonium-antimuonium oscillations and LFV leptonium decays - Meson and baryon LFV decays (K-> pi e mu, B -> K tau ell, ...) - Decays of heavy states (h,t,Z,Z'...) and other LFV processes at colliders - Light to heavy lepton LFV transitions (EIC, muon beam,...) This topical group will benefit from the synergies with other study groups, including * RF01 / RF02: Weak decays of b and c quarks and weak decays of strange and light quarks * EF02/ EF09: EW Physics: Higgs Boson as a portal to new physics and BSM: More general explorations * AF05: Accelerators for PBC and Rare Processes * TF07: Theory Frontier - Collider Phenomenology ==== Meetings ==== Past and future workshops organized by the CFLV group: * July 2, 2020, Muon transitions and decays, muonium-antimuonium ([[https://indico.fnal.gov/event/44028/ |Agenda]]) * July 23, 2020, Tau decays and transitions ([[https://indico.fnal.gov/event/44457/ |Agenda]]) * September 3, 2020, Heavy states decays ([[https://indico.fnal.gov/event/44931/ |Agenda]]) * September 28-29, 2020, LFV and LFU in meson and baryon decays with RF01/RF02 ([[https://indico.fnal.gov/event/44442/ |Agenda]]) * December 10, CLFV with high intensity muon factory ([[https://indico.fnal.gov/event/46669/ |Agenda]]) * February 25, Monthly coffee hour ([[https://indico.fnal.gov/event/47893/ |Agenda]]) * March 25, Monthly coffee hour ([[https://indico.fnal.gov/event/48381/ |Agenda]]) * April 29, Monthly coffee hour ([[https://indico.fnal.gov/event/48815/ |Agenda]]) * May 28, Monthly coffee hour ([[https://indico.fnal.gov/event/49187/ |Agenda]]) * Dec 9, White paper preparation ([[https://indico.fnal.gov/event/52146/ |Agenda]]) Snowmass meeting (July 17-14 2022), sessions relevant for CLFV: * CLFV in heavy state decays with EF ([[https://indico.fnal.gov/event/22303/sessions/20651/#20220721 | Agenda]]) * CLFV topical group session ([[https://indico.fnal.gov/event/22303/sessions/20643/#20220722 | Agenda]]) * CLFV and neutrino physics ([[https://indico.fnal.gov/event/22303/sessions/20651/#20220724|Agenda]]) Recording of the workshop are posted on doc-db, available [[https://projects-docdb.fnal.gov/cgi-bin/sso/ListBy?topicid=690| here]] (the title doesn't always include the word recording). Please let us know ([[s.davidson@lupm.in2p3.fr,echenard@caltech.edu?subject=Snowmass RP05|email]]) if you need help accessing it or wish to give a presentation ==== Topical group report ==== The topical group report is available here ([[https://arxiv.org/abs/2209.00142|link]]) ==== Contributed paper (aka white paper) ==== The following white papers have been submitted or planned so far: - Experimental Searches for Muon to Electron Conversion in a Nucleus: COMET, DeeMe, and Mu2e ([[https://arxiv.org/abs/2203.07089 | link]]) - The MEG experiment (TBA) - The Mu3e Experiment ([[https://arxiv.org/abs/2204.00001 | link]]) - Muonium to antimuonium conversion ([[https://arxiv.org/abs/2203.11406 | link]]) - Mu2e-II: Muon to electron conversion with PIP-II ([[https://arxiv.org/abs/2203.07569 | link]]) - CLFV in the tau sector ([[https://arxiv.org/abs/2203.14919 | link]]) - CLFV in Heavy Particle Decays ([[https://arxiv.org/abs/2205.10576 | link]]) - A New CLFV Program at Fermilab ([[https://arxiv.org/abs/2203.08278 | link]]) More information can be found in this google document ([[https://docs.google.com/spreadsheets/d/1R_fFB_YzDk2O06eP55MhpRgAF2LCHuP94_IxKrfxjMQ/edit?usp=sharing | link]]), including the associated LOI and editor contact information. Feel free to [[s.davidson@lupm.in2p3.fr,echenard@caltech.edu?subject=Snowmass RP05|email us]] if you would like to join a group working in a specific area and we will try to match your interests. ====Relevant References ==== * Snowmass 2013 Report: https://www.slac.stanford.edu/econf/C1307292/ * The 2020 European Strategy Physics input on CLFV: https://arxiv.org/pdf/1812.06540.pdf ===== Submitted LOI ===== Here is the list of submitted LOIs to this topic. First index before "/" corresponds to the primary frontier used for the submission. {{url>https://www.snowmass21.org/docs/files/list.php?frontier=RF5 border 95%,600px}}