Search for a muon EDM using the frozen-spin technique

A. Adelmann; M. Backhaus; C. Chavez Barajas; N. Berger; T. Bowcock; C. Calzolaio; G. Cavoto; R. Chislett; A. Crivellin; M. Daum; M. Fertl; M. Giovannozzi; G. Hesketh; M. Hildebrandt; I. Keshelashvili; A. Keshavarzi; K. S. Khaw; K. Kirch; A. Kozlinskiy; A. Knecht; M. Lancaster; B. Märkisch; F. Meier Aeschbacher; F. Méot; A. Nass; A. Papa; J. Pretz; J. Price; F. Rathmann; F. Renga; M. Sakurai; P. Schmidt-Wellenburg; A. Schöning; M. Schott; C. Voena; J. Vossebeld; F. Wauters; P. Winter

doi:https://doi.org/10.48550/arXiv.2102.08838

Search for a muon EDM using the frozen-spin technique

A. Adelmann, M. Backhaus, C. Chavez Barajas, N. Berger, T. Bowcock, C. Calzolaio, G. Cavoto, R. Chislett, A. Crivellin, M. Daum, M. Fertl, M. Giovannozzi, G. Hesketh, M. Hildebrandt, I. Keshelashvili, A. Keshavarzi, K. S. Khaw, K. Kirch, A. Kozlinskiy, A. KnechtM. Lancaster, B. Märkisch, F. Meier Aeschbacher, F. Méot, A. Nass, A. Papa, J. Pretz, J. Price, F. Rathmann, F. Renga, M. Sakurai, P. Schmidt-Wellenburg, A. Schöning, M. Schott, C. Voena, J. Vossebeld, F. Wauters, P. Winter

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Abstract

This letter of intent proposes an experiment to search for an electric dipole moment of the muon based on the frozen-spin technique. We intend to exploit the high electric field, E=1GV/m, experienced in the rest frame of the muon with a momentum of p=125MeV/c when passing through a large magnetic field of |B|=3T. Current muon fluxes at the μE1 beam line permit an improved search with a sensitivity of σ(dμ)≤6×10⁻²³ecm, about three orders of magnitude more sensitivity than for the current upper limit of |dμ|≤1.8×10⁻¹⁹ecm\,(C.L. 95\%). With the advent of the new high intensity muon beam, HIMB, and the cold muon source, muCool, at PSI the sensitivity of the search could be further improved by tailoring a re-acceleration scheme to match the experiments injection phase space. While a null result would set a significantly improved upper limit on an otherwise un-constrained Wilson coefficient, the discovery of a muon EDM would corroborate the existence of physics beyond the Standard Model.

Original language	English
Publisher	Cornell University
Pages	1-28
Number of pages	28
DOIs	https://doi.org/10.48550/arXiv.2102.08838
Publication status	Published - 17 Feb 2021

Publication series

Name	arXiv preprint
Publisher	Cornell University
No.	08838
Volume	arXiv:2102

Keywords

hep-ex
physics.ins-det

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https://doi.org/10.48550/arXiv.2102.08838

2102.08838v1

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Adelmann, A., Backhaus, M., Barajas, C. C., Berger, N., Bowcock, T., Calzolaio, C., Cavoto, G., Chislett, R., Crivellin, A., Daum, M., Fertl, M., Giovannozzi, M., Hesketh, G., Hildebrandt, M., Keshelashvili, I., Keshavarzi, A., Khaw, K. S., Kirch, K., Kozlinskiy, A., ... Winter, P. (2021). Search for a muon EDM using the frozen-spin technique. (pp. 1-28). (arXiv preprint; Vol. arXiv:2102, No. 08838). Cornell University. https://doi.org/10.48550/arXiv.2102.08838

@techreport{c3a8bfce4da14da8a3c4e784e4ccae69,

title = "Search for a muon EDM using the frozen-spin technique",

abstract = "This letter of intent proposes an experiment to search for an electric dipole moment of the muon based on the frozen-spin technique. We intend to exploit the high electric field, E=1GV/m, experienced in the rest frame of the muon with a momentum of p=125MeV/c when passing through a large magnetic field of |B|=3T. Current muon fluxes at the μE1 beam line permit an improved search with a sensitivity of σ(dμ)≤6×10−23ecm, about three orders of magnitude more sensitivity than for the current upper limit of |dμ|≤1.8×10−19ecm\,(C.L. 95\%). With the advent of the new high intensity muon beam, HIMB, and the cold muon source, muCool, at PSI the sensitivity of the search could be further improved by tailoring a re-acceleration scheme to match the experiments injection phase space. While a null result would set a significantly improved upper limit on an otherwise un-constrained Wilson coefficient, the discovery of a muon EDM would corroborate the existence of physics beyond the Standard Model.",

keywords = "hep-ex, physics.ins-det",

author = "A. Adelmann and M. Backhaus and Barajas, {C. Chavez} and N. Berger and T. Bowcock and C. Calzolaio and G. Cavoto and R. Chislett and A. Crivellin and M. Daum and M. Fertl and M. Giovannozzi and G. Hesketh and M. Hildebrandt and I. Keshelashvili and A. Keshavarzi and Khaw, {K. S.} and K. Kirch and A. Kozlinskiy and A. Knecht and M. Lancaster and B. M{\"a}rkisch and Aeschbacher, {F. Meier} and F. M{\'e}ot and A. Nass and A. Papa and J. Pretz and J. Price and F. Rathmann and F. Renga and M. Sakurai and P. Schmidt-Wellenburg and A. Sch{\"o}ning and M. Schott and C. Voena and J. Vossebeld and F. Wauters and P. Winter",

note = "Based on the letter of intent submitted to the PSI CHRISP research committee in January 021 28 pages, 25 figures",

year = "2021",

month = feb,

day = "17",

doi = "https://doi.org/10.48550/arXiv.2102.08838",

language = "English",

series = "arXiv preprint",

publisher = "Cornell University",

number = "08838",

pages = "1--28",

address = "United States",

type = "WorkingPaper",

institution = "Cornell University",

}

Adelmann, A, Backhaus, M, Barajas, CC, Berger, N, Bowcock, T, Calzolaio, C, Cavoto, G, Chislett, R, Crivellin, A, Daum, M, Fertl, M, Giovannozzi, M, Hesketh, G, Hildebrandt, M, Keshelashvili, I, Keshavarzi, A, Khaw, KS, Kirch, K, Kozlinskiy, A, Knecht, A, Lancaster, M, Märkisch, B, Aeschbacher, FM, Méot, F, Nass, A, Papa, A, Pretz, J, Price, J, Rathmann, F, Renga, F, Sakurai, M, Schmidt-Wellenburg, P, Schöning, A, Schott, M, Voena, C, Vossebeld, J, Wauters, F & Winter, P 2021 'Search for a muon EDM using the frozen-spin technique' arXiv preprint, no. 08838, vol. arXiv:2102, Cornell University, pp. 1-28. https://doi.org/10.48550/arXiv.2102.08838

TY - UNPB

T1 - Search for a muon EDM using the frozen-spin technique

AU - Adelmann, A.

AU - Backhaus, M.

AU - Barajas, C. Chavez

AU - Berger, N.

AU - Bowcock, T.

AU - Calzolaio, C.

AU - Cavoto, G.

AU - Chislett, R.

AU - Crivellin, A.

AU - Daum, M.

AU - Fertl, M.

AU - Giovannozzi, M.

AU - Hesketh, G.

AU - Hildebrandt, M.

AU - Keshelashvili, I.

AU - Keshavarzi, A.

AU - Khaw, K. S.

AU - Kirch, K.

AU - Kozlinskiy, A.

AU - Knecht, A.

AU - Lancaster, M.

AU - Märkisch, B.

AU - Aeschbacher, F. Meier

AU - Méot, F.

AU - Nass, A.

AU - Papa, A.

AU - Pretz, J.

AU - Price, J.

AU - Rathmann, F.

AU - Renga, F.

AU - Sakurai, M.

AU - Schmidt-Wellenburg, P.

AU - Schöning, A.

AU - Schott, M.

AU - Voena, C.

AU - Vossebeld, J.

AU - Wauters, F.

AU - Winter, P.

N1 - Based on the letter of intent submitted to the PSI CHRISP research committee in January 021 28 pages, 25 figures

PY - 2021/2/17

Y1 - 2021/2/17

N2 - This letter of intent proposes an experiment to search for an electric dipole moment of the muon based on the frozen-spin technique. We intend to exploit the high electric field, E=1GV/m, experienced in the rest frame of the muon with a momentum of p=125MeV/c when passing through a large magnetic field of |B|=3T. Current muon fluxes at the μE1 beam line permit an improved search with a sensitivity of σ(dμ)≤6×10−23ecm, about three orders of magnitude more sensitivity than for the current upper limit of |dμ|≤1.8×10−19ecm\,(C.L. 95\%). With the advent of the new high intensity muon beam, HIMB, and the cold muon source, muCool, at PSI the sensitivity of the search could be further improved by tailoring a re-acceleration scheme to match the experiments injection phase space. While a null result would set a significantly improved upper limit on an otherwise un-constrained Wilson coefficient, the discovery of a muon EDM would corroborate the existence of physics beyond the Standard Model.

AB - This letter of intent proposes an experiment to search for an electric dipole moment of the muon based on the frozen-spin technique. We intend to exploit the high electric field, E=1GV/m, experienced in the rest frame of the muon with a momentum of p=125MeV/c when passing through a large magnetic field of |B|=3T. Current muon fluxes at the μE1 beam line permit an improved search with a sensitivity of σ(dμ)≤6×10−23ecm, about three orders of magnitude more sensitivity than for the current upper limit of |dμ|≤1.8×10−19ecm\,(C.L. 95\%). With the advent of the new high intensity muon beam, HIMB, and the cold muon source, muCool, at PSI the sensitivity of the search could be further improved by tailoring a re-acceleration scheme to match the experiments injection phase space. While a null result would set a significantly improved upper limit on an otherwise un-constrained Wilson coefficient, the discovery of a muon EDM would corroborate the existence of physics beyond the Standard Model.

KW - hep-ex

KW - physics.ins-det

U2 - https://doi.org/10.48550/arXiv.2102.08838

DO - https://doi.org/10.48550/arXiv.2102.08838

M3 - Preprint

T3 - arXiv preprint

SP - 1

EP - 28

BT - Search for a muon EDM using the frozen-spin technique

PB - Cornell University

ER -

Search for a muon EDM using the frozen-spin technique

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