Experimento E36 en J-PARC

Contenido principal del artículo

Haiyun Lu
Chaden Djalali

Resumen

El experimento E36 se ha llevado a cabo en J-PARC para buscar anomalías a la universalidad leptónica en las desintegraciones en dos leptones del kaón K l2 . Se extraerá un valor preciso de la fracción de anchos de desintegración RK=?(Ke2) =?(K?2) y se comparará con el valor del modelo estándar (SM). Cualquier diferencia considerable sugeriría una nueva física más allá del SM. Simultáneamente, E36 es sensible a los bosones de gauge ligeros U(1) que podrían estar asociados con la materia oscura o explicar anomalías relacionadas con el muón (g-2). El experimento y el estado del análisis serán presentados.

Detalles del artículo

Cómo citar
Lu, H., & Djalali, C. (2019). Experimento E36 en J-PARC. Nucleus, (64). Recuperado a partir de http://nucleus.cubaenergia.cu/index.php/nucleus/article/view/662
Sección
Ciencias Nucleares

Citas

[1] OLIVE KA, et. al. Review of particle physics. Chin. Phys. C. 2014; 38: 090001.
[2] THE LHCb COLLABORATION. Test of Lepton Universality Using B+?K+ l+ l- Decays. Phys. Rev. Lett. 2014; 113: 151601.
[3] AMHIS Y, et. al. Averages of b-hadron, c-hadron, and ?-lepton properties as of summer 2016. ArXiv:1612.07233
[4] BERNLOCHNER FU, LIGETI Z, PAPUCCI M, ROBINSON DJ. Combined analysis of semileptonic B decays to D and D*: R(D* ), |Vcb|, and new physics. Phys. Rev. D. 2017; 95: 115008.
[5] CIRIGLIANO V, ROSELL I. Two-Loop Effective Theory Analysis of ?(K)? e?[?] Branching Ratios. Phys. Rev. Lett. 2007; 99: 231801.
[6] MASIERO A, PARADISI P, PETRONZIO R. Probing New Physics Through ?-e Universality in K?l?. Phys. Rev. D. 2005; 74: 11701(R).
[7] A. MASIERO, P. PARADISI, R. PETRONZIO, Anatomy and phenomenology of the lepton flavor universality in susy theories. JHEP 2008; 11: 011701
[8] GIRRBACH J, NIERSTE U. ?(K?e?)/?(K???) in the Minimal Supersymmetric Standard Model. JHEP. 2010; 05: 026.
[9] ABADA A, et. al. Tree-Level Lepton Universality Violation in the Presence of Sterile Neutrinos: Impact for RK and R?. JHEP. 2013; 02: 48.
[10] SICK I. On the RMS-Radius of the Proton. Phys. Lett. B. 2003; 576: 62.
[11] BERNAUER JC, et. al. High-precision determination of the electric and magnetic form factors of the proton. Phys. Rev. Lett. 2010; 105: 242001.
[12] POHL R, et. al. The size of the proton. Nature. 2010; 466: 213.
[13] MOHR PJ, TAYLOR BN, NEWELL DB. CODATA recommended values of the fundamental physical constants: 2010. Rev. Mod. Phys. 2012; 84: 1527.
[14] ANTOGNINI A, et. al. Proton Structure from the measurement of 2S-2P transition frequencies of muonic hydrogen. Science. 2013; 339: 417.
[15] ARKANI-HAMED N, et. al. A Theory of dark matter. Phys. Rev. D. 2009; 79: 015014.
[16] The KLOE collaboration. Precise measurement of ?(K?e?(?))/ ?(K???(?)) and study of K?e??. Eur. Phys. J. C. 2009; 64: 627.
[17] The NA62 collaboration. Precision measurement of the ratio of the charged kaon leptonic decay rates. Phys. Lett. B. 2013; 719: 326.
[18] The TREK collaboration. The TREK experiment. Available in: http://trek.kek.jp/trek.html
[19] The E36 collaboration. Precise measurement of ?(K+?e+?)/ ?(K+??+?) using stopped positive kaons. Available in: http://trek.kek.jp/e36/index.html
[20] ABE M, et. al. Search for T-violating transverse muon polarization in K+??0 ?+ ? decay using stopped kaons. Phys. Rev. Lett. 1999; 83: 4253.
[21] MACDONALD JA, et. al. Apparatus for A search for T violating muon polarization in stopped kaon decays. Nucl. Instrum. Meth. A. 2003; 506: 60.
[22] DEMENTYEV DV, et al. CsI(Tl) Photon detector with PIN photodiode readout for A K?3 T-violation experiment. Nucl. Instrum. Meth. A. 2000; 440: 151.
[23] IGARASHI Y, LU HY, TANUMA R. Data acquisition system for the J-PARC E36 experiment. IEEE-NPSS Real Time Conference 2016. Available in: http://ieeexplore.ieee.org/document/7543154/
[24] TABATA M, et. al. Assembly and bench testing of a spiral fiber tracker for the J-PARC TREK/E36 experiment. JPS Conf. Proc. 2015; 8: 024001.