CP-violating Higgs boson ditau decays: Baryogenesis and Higgs factories

被引：8

作者：

Ge, Shao-Feng ^{[1
,2
,3
,4
]}

Li, Gang ^{[5
]}

Pasquini, Pedro ^{[1
,2
]}

Ramsey-Musolf, Michael J. ^{[1
,2
,3
,4
,5
,6
]}

机构：

[1] Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China

[3] Shanghai Jiao Tong Univ, Key Lab Particle Astrophys & Cosmol MOE, Shanghai 200240, Peoples R China

[4] Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China

[5] Univ Massachusetts, Amherst Ctr Fundamental Interact, Dept Phys, Amherst, MA 01003 USA

[6] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW D | 2021年 / 103卷 / 09期

基金：

中国国家自然科学基金;

关键词：

TAU-SPIN CORRELATIONS; PARITY; COLLIDERS; TAUBARTAU;

D O I：

10.1103/PhysRevD.103.095027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We demonstrate how probes of CP-violating observables in Higgs boson ditau decays at prospective future lepton colliders could provide a test of weak scale baryogenesis with significant discovery potential. Measurements at the Circular Electron Positron Collider, for example, could exclude a CP phase larger than 2.9 degrees (5.6 degrees) at 68% (95%) C.L. assuming the Standard Model value for magnitude of the tau lepton Yukawa coupling. Conversely, this sensitivity would allow for a 5 sigma discovery for 82% of the CP phase range [0; 2 pi). The reaches of the Future Circular Collider for electrons and positrons (FCC-ee) and International Linear Collider are comparable. As a consequence, future lepton colliders could establish the presence of CP violation required by lepton flavored electroweak baryogenesis with at least 3 sigma sensitivity. Our results illustrate that Higgs factories are not just precision machines, but can also make O(1) measurement of the new physics beyond the Standard Model.

引用

页数：13

共 62 条

[1] Cross-section measurements of the Higgs boson decaying into a pair of τ-leptons in proton-proton collisions at √s=13 TeV with the ATLAS detector [J].

Aaboud, M. ;

Aad, G. ;

Abbott, B. ;

Abdinov, O. ;

Abeloos, B. ;

Abhayasinghe, D. K. ;

Abidi, S. H. ;

AbouZeid, O. S. ;

Abraham, N. L. ;

Abramowicz, H. ;

Abreu, H. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adachi, S. ;

Adamczyk, L. ;

Adelman, J. ;

Adersberger, M. ;

Adiguzel, A. ;

Adye, T. ;

Affolder, A. A. ;

Afik, Y. ;

Agheorghiesei, C. ;

Aguilar-Saavedra, J. A. ;

Ahmadov, F. ;

Aielli, G. ;

Akatsuka, S. ;

Akesson, T. P. A. ;

Akilli, E. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Albicocco, P. ;

Alconada Verzini, M. J. ;

Alderweireldt, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexopoulos, T. ;

Alhroob, M. ;

Ali, B. ;

Alimonti, G. ;

Alison, J. ;

Alkire, S. P. ;

Allaire, C. ;

Allbrooke, B. M. M. ;

Allen, B. W. ;

Allport, P. P. ;

Aloisio, A. ;

Alonso, A. ;

Alonso, F. .

PHYSICAL REVIEW D, 2019, 99 (07)

[2] Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, O. S. ;

Abramowicz, H. ;

Abreu, H. ;

Abreu, R. ;

Abulaiti, Y. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Adelman, J. ;

Adomeit, S. ;

Adye, T. ;

Agatonovic-Jovin, T. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Ahlen, S. P. ;

Ahmadov, F. ;

Aielli, G. ;

Akerstedt, H. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Alberghi, G. L. ;

Albert, J. ;

Albrand, S. ;

Alconada Verzini, M. J. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Alimonti, G. ;

Alio, L. ;

Alison, J. ;

Allbrooke, B. M. M. ;

Allison, L. J. ;

Allport, P. P. ;

Aloisio, A. ;

Alonso, A. ;

Alonso, F. ;

Alpigiani, C. .

JOURNAL OF HIGH ENERGY PHYSICS, 2015, (04) :1-74

[3] Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC [J].

Aad, G. ;

Abajyan, T. ;

Abbott, B. ;

Abdallah, J. ;

Khalek, S. Abdel ;

Abdelalim, A. A. ;

Abdinov, O. ;

Aben, R. ;

Abi, B. ;

Abolins, M. ;

AbouZeid, U. S. ;

Abramowicz, H. ;

Abreu, H. ;

Acharya, B. S. ;

Adamczyk, L. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Agustoni, M. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Alam, M. S. ;

Alam, M. A. ;

Albert, J. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Alessandria, F. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Allbrooke, B. M. M. .

PHYSICS LETTERS B, 2012, 716 (01) :1-29

[4] FCC-ee: The Lepton Collider: Future Circular Collider Conceptual Design Report Volume 2 [J].

Abada, A. ;

Abbrescia, M. ;

AbdusSalam, S. S. ;

Abdyukhanov, I. ;

Fernandez, J. Abelleira ;

Abramov, A. ;

Aburaia, M. ;

Acar, A. O. ;

Adzic, P. R. ;

Agrawal, P. ;

Aguilar-Saavedra, J. A. ;

Aguilera-Verdugo, J. J. ;

Aiba, M. ;

Aichinger, I. ;

Aielli, G. ;

Akay, A. ;

Akhundov, A. ;

Aksakal, H. ;

Albacete, J. L. ;

Albergo, S. ;

Alekou, A. ;

Aleksa, M. ;

Aleksan, R. ;

Fernandez, R. M. Alemany ;

Alexahin, Y. ;

Alia, R. G. ;

Alioli, S. ;

Tehrani, N. Alipour ;

Allanach, B. C. ;

Allport, P. P. ;

Altinli, M. ;

Altmannshofer, W. ;

Ambrosio, G. ;

Amorim, D. ;

Amstutz, O. ;

Anderlini, L. ;

Andreazza, A. ;

Andreini, M. ;

Andriatis, A. ;

Andris, C. ;

Andronic, A. ;

Angelucci, M. ;

Antinori, F. ;

Antipov, S. A. ;

Antonelli, M. ;

Antonello, M. ;

Antonioli, P. ;

Antusch, S. ;

Anulli, F. ;

Apolinario, L. .

EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 2019, 228 (02) :261-623

[5] MadGraph 5: going beyond [J].

Alwall, Johan ;

Herquet, Michel ;

Maltoni, Fabio ;

Mattelaer, Olivier ;

Stelzer, Tim .

JOURNAL OF HIGH ENERGY PHYSICS, 2011, (06)

[6] Precision Higgs physics at the CEPC [J].

An, Fenfen ;

Bai, Yu ;

Chen, Chunhui ;

Chen, Xin ;

Chen, Zhenxing ;

da Costa, Joao Guimaraes ;

Cui, Zhenwei ;

Fang, Yaquan ;

Fu, Chengdong ;

Gao, Jun ;

Gao, Yanyan ;

Gao, Yuanning ;

Ge, Shaofeng ;

Gu, Jiayin ;

Guo, Fangyi ;

Guo, Jun ;

Han, Tao ;

Han, Shuang ;

He, Hongjian ;

He, Xianke ;

He, Xiaogang ;

Hu, Jifeng ;

Hsu, Shih-Chieh ;

Jin, Shan ;

Jing, Maoqiang ;

Jyotishmati, Susmita ;

Kiuchi, Ryuta ;

Kuo, Chia Ming ;

Lai, Peizhu ;

Li, Boyang ;

Li, Congqiao ;

Li, Gang ;

Li, Haifeng ;

Li, Liang ;

Li, Shu ;

Li, Tong ;

Li, Qiang ;

Liang, Hao ;

Liang, Zhijun ;

Liao, Libo ;

Liu, Bo ;

Liu, Jianbei ;

Liu, Tao ;

Liu, Zhen ;

Lou, Xinchou ;

Ma, Lianliang ;

Mellado, Bruce ;

Mo, Xin ;

Pandurovic, Mila ;

Qian, Jianming .

CHINESE PHYSICS C, 2019, 43 (04)

[7]

[Anonymous], ARXIV10063396

[8]

[Anonymous], ARXIV13066352

[9]

[Anonymous], ARXIV13077135

[10] Prospect for measuring the CP phase in the hττ coupling at the LHC [J].

Askew, Andrew ;

Jaiswal, Prerit ;

Okui, Takemichi ;

Prosper, Harrison B. ;

Sato, Nobuo .

PHYSICAL REVIEW D, 2015, 91 (07)

← 1 2 3 4 5 6 7 →