Mu2e Conceptual Design Report

Project, The Mu2e; Collaboration,; _, _; Abrams, R. J.; Alezander, D.; Ambrosio, G.; Andreev, N.; Ankenbrandt, C.; Asner, D. M.; Arnold, D.; Artikov, A.; Barnes, E.; Bartoszek, L.; Bernstein, R. H.; Biery, K.; Biliyar, V.; Bonicalzi, R.; Bossert, R.; Bowden, M.; Brandt, J.; Brown, D. N.; Budagov, J.; Buehler, M.; Burov, A.; Carcagno, R.; Carey, R. M.; Carosi, R.; Cascella, M.; Cauz, D.; Cervelli, F.; Chandra, A.; Chang, J. K.; Cheng, C.; Ciambrone, P.; Coleman, R. N.; Cooper, M.; Corcoran, M. C.; Cordelli, M.; Davydov, Y.; Gouvea, Andre Luiz De; Lorenzis, L. De; Debevec, P. T.; DeJongh, F.; Densham, C.; Deuerling, G.; Dey, J.; Falco, S. Di; Dixon, S.; Djilkibaev, R.; B., Drendel,; Dukes, E. C.; Dychkant, A.; Echenard, B.; Ehrlich, R.; Evans, N.; Evbota, D.; Fang, I.; Fast, J. E.; Feher, S.; Fischler, M.; Frank, M.; Frlez, E.; Fung, S. S.; Gallo, G.; Galucci, G.; Gaponenko, A.; Genser, K.; Giovannella, S.; Glagolev, V.; Glenzinski, D.; Gnani, D.; Goadhouse, S.; Gollin, G. D.; Grace, C.; Grancagnolo, F.; Group, C.; Hanson, J.; Hanson, S.; Happacher, F.; E., Heckmaier,; Hedin, D.; Hertzog, D. W.; Hirosky, R.; Hitlin, D. G.; E., Ho,; Huang, X.; Huedem, E.; Hung, P. Q.; Hungerford, E.; Ito, T.; Jaskierny, W.; R., Jedziniak,; Johnson, R. P.; Johnstone, C.; Johnstone, James A.; Kahn, S. A.; Kammel, P.; Kang, T. I.; Kashikhin, V.S.; Kashikhin, V.V.; Kasper, P.; Kawall, D. M.; Khalatian, V.; M., Kim,; Klebaner, A.; D., Kocen,; Kolomensky, Y.; Kourbanis, I.; Kowalkowski, J.; Kozminski, J.; Krempetz, K.; Kumar, K. S.; Kutschke, R. K.; Kwarciany, R.; Lackowski, T.; Lamm, M.; Larwill, M.; Lau, K.; Lee, M. J.; L'Erario, A.; Leveling, T.; Lim, G.; Lindenmeyer, C.; Logashenko, V.; T., Lontadze,; Lopes, M.; Luca, A.; Lynch, K. R.; Ma, T.; Maffezzoli, A.; Marciano, W. J.; Martini, M.; Masayoshi, W.; Matushko, V.; McAteer, M.; McCrady, R.; A., Moccoli,; Michelotti, L.; Miller, J. P.; Miscetti, S.; Molzon, W.; Morgan, J.; Mukherjee, A.; Nagaitsev, S.; Nagaslaev, V.; Niehoff, J.; Neuffer, D. V.; Nicol, T.; Norman, A. J.; Norris, B.; Odell, J.; S., Oh,; Oksuzian, Y.; Onorato, G.; Orduna, J.; Orris, D.; Ostojic, R.; Page, T.; Paschke, K. D.; Pauletta, G.; Peterson, T.; Piacentino, G. M.; Pileggi, G.; Pla-Dalmau, A.; Pocanic, D.; Polly, C. C.; Polychronakos, V.; Ponzio, B.; Popovic, M.; Popp, J. L.; Porter, F.; Presbys, E.; Prieto, P.; Pronskikh, V.; Puccinelli, F.; Rabehl, R.; Ramsey, J.; Ray, R. E.; Rechenmacher, R.; S., Rella,; Ristori, L.; Rivera, R.; Roberts, B. L.; J., Roberts, T.; Rubinov, P.; Rusu, V. L.; Saputi, A.; Sarra, I.; Smertzidis, Y.; Shanahan, P.; Simonenko, A.; Steward, J.; Suslov, I.; C., Sylvester,; Tang, Z.; Tartaglia, M.; Tassielli, G.; Tereshchenko, V.; Theilacker, J.; Tompkins, J.; Tschirhart, R.; Zandbergen, Ger van; C., Vannini,; Venanzoni, G.; Lippe, H. von der; Wagner, R.; Walder, J. P.; R., Walton,; S., Wands,; Wang, S.; Warren, G.; Werkema, S.; B., White Jr, H.; Wielgos, R.; Wood, L. S.; Woodward, M.; Wu, J.; Xiao, M.; Yamada, R.; Yamin, P.; Yarritu, K.; Yonehara, K.; Yoshikawa, C.; You, Z.; Yu, G.; Yurkewicz, A.; Zavarise, G.; Zhu, R. Y.

doi:10.48550/arxiv.1211.7019

Cited by 2 publications

(3 citation statements)

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“…In the future, the Mu2e experiment [51,52] is expected to dramatically improve the limit to the one in (5.14). This limit can be written in terms of k as…”

Section: Jhep03(2022)010mentioning

confidence: 98%

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Leptonic CP violation from a vector-like lepton

Cherchiglia

Conto

Nishi

2022

J. High Energ. Phys.

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Leptonic CP violation is yet to be confirmed as an additional source of CP violation in fundamental interactions. We study the case where leptonic CP violation is spontaneous and is induced by the mixing with a heavy charged vector-like lepton (VLL). We show that the non-decoupling of this VLL is linked with the presence of CP violation and its coupling with the SM leptons are partly fixed from the SM Yukawas. Due to the large leptonic mixing angles, these couplings are typically of the same order and there is no flavor preference. Strong but not definitive constraints come from charged lepton flavor violating processes because the VLL can decouple from one or two leptonic flavors in very special points of parameter space. These special points are very sensitive to the neutrino Majorana phases.

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“…In the future, the Mu2e experiment [51,52] is expected to dramatically improve the limit to the one in (5.14). This limit can be written in terms of k as…”

Section: Jhep03(2022)010mentioning

confidence: 98%

“…giving us the strongest constraint on this quantity. The future Mu2e [51,52] and COMET [53,54] experiments are expected to dramatically improve the constraint and reach Γ conv µ→e /Γ capt Al < 3 × 10 −17 using aluminium nuclei. Given the different nucleus, we can use the estimate shown in refs.…”

Section: Conversion In Nucleimentioning

confidence: 99%

Leptonic CP violation from a vector-like lepton

Cherchiglia

Conto

Nishi

2022

J. High Energ. Phys.

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“…where the index i is not summed. The current (future) limit is set on the conversion rate per capture rate [41][42][43][44],…”

Section: µ-E Conversionmentioning

confidence: 99%

Importance of vector leptoquark-scalar box diagrams in Pati-Salam unification with vector-like families

Iguro

Kawamura

Okawa

et al. 2022

J. High Energ. Phys.

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We study lepton flavor violation (LFV) induced by one-loop box diagrams in Pati-Salam (PS) unification with vector-like families. The vector leptoquark (LQ) associated with the PS gauge symmetry breaking generally causes various LFV processes such as KL → μe and μ → e conversion at the tree-level, thereby driving its mass scale to be higher than PeV scale. The vector-like families are introduced to suppress such tree-level LFV processes, allowing the LQ to have TeV scale mass. In this paper, we point out that there are inevitable one-loop contributions to those LFV processes from the box diagrams mediated by both one LQ and one scalar field, even if the tree-level contributions are suppressed. We consider a concrete model for demonstration, and show that the vector-like fermion masses have an upper bound for a given LQ mass when the one-loop induced processes are consistent with the experimental limits. The vector-like fermion mass should be lighter than 3 TeV for 20 TeV LQ, if a combination of the couplings does not suppress KL → μe decay. Our findings would illustrate importance of the box diagrams involving both LQ and physical modes of symmetry breaking scalars in TeV scale vector LQ models.

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Mu2e Conceptual Design Report

Cited by 2 publications

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Leptonic CP violation from a vector-like lepton

Leptonic CP violation from a vector-like lepton

Importance of vector leptoquark-scalar box diagrams in Pati-Salam unification with vector-like families

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