Direct CP Violation in K → μ+ μ-

被引：39

作者：

D'Ambrosio, Giancarlo ^{[1
]}

Kitahara, Teppei ^{[2
,3
]}

机构：

[1] INFN Sez Napoli, Via Cintia, I-80126 Naples, Italy

[2] Karlsruhe Inst Technol, Inst Theoret Particle Phys TTP, Engesserstr 7, D-76128 Karlsruhe, Germany

[3] Karlsruhe Inst Technol, Inst Nucl Phys IKP, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 119卷 / 20期

关键词：

QCD CORRECTIONS; KAON DECAYS; AMPLITUDES; SEARCH;

D O I：

10.1103/PhysRevLett.119.201802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A rare decay K-L -> mu(+)mu(-) has been measured precisely, while a rare decay K-S -> mu(+)mu(-) will be observed by an upgrade of the LHCb experiment. Although both processes are almost CP-conserving decays, we point out that an interference contribution between K-L and K-S in the kaon beam emerges from a genuine direct CP violation. It is found that the interference contribution can change K-S -> mu(+)mu(-) standard-model predictions at O(60%). We also stress that an unknown sign of A(K-L -> gamma gamma) can be determined by a measurement of the interference, which can much reduce a theoretical uncertainty of B(K-L -> mu(+) mu(-)). We also investigate the interference in a new physics model, where the is an element of'(K)/is an element of(K) tension is explained by an additional Z-penguin contribution.

引用

页数：6

共 49 条

[1] Evidence for CP Violation in Time- Integrated D0 → h-h+ Decay Rates [J].

Aaij, R. ;

Abellan Beteta, C. ;

Adeva, B. ;

Adinolfi, M. ;

Adrover, C. ;

Affolder, A. ;

Ajaltouni, Z. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Alkhazov, G. ;

Alvarez Cartelle, P. ;

Alves, A. A., Jr. ;

Amato, S. ;

Amhis, Y. ;

Anderson, J. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

Arrabito, L. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Bachmann, S. ;

Back, J. J. ;

Bailey, D. S. ;

Balagura, V. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Bates, A. ;

Bauer, C. ;

Bauer, Th ;

Bay, A. ;

Bediaga, I. ;

Belogurov, S. ;

Belous, K. ;

Belyaev, I. ;

Ben-Haim, E. ;

Benayoun, M. ;

Bencivenni, G. ;

Benson, S. ;

Benton, J. ;

Bernet, R. ;

Bettler, M. -O. ;

van Beuzekom, M. ;

Bien, A. .

PHYSICAL REVIEW LETTERS, 2012, 108 (11)

[2] Measurement of the CP-Violating Phase φs in the Decay Bs0 → J/ψφ [J].

Aaij, R. ;

Abellan Beteta, C. ;

Adeva, B. ;

Adinolfi, M. ;

Adrover, C. ;

Affolder, A. ;

Ajaltouni, Z. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Alkhazov, G. ;

Alvarez Cartelle, P. ;

Alves, A. A., Jr. ;

Amato, S. ;

Amhis, Y. ;

Anderson, J. ;

Appleby, R. B. ;

Gutierrez, O. Aquines ;

Archilli, F. ;

Arrabito, L. ;

Artamonov, A. ;

Artuso, M. ;

Aslanides, E. ;

Auriemma, G. ;

Bachmann, S. ;

Back, J. J. ;

Bailey, D. S. ;

Balagura, V. ;

Baldini, W. ;

Barlow, R. J. ;

Barschel, C. ;

Barsuk, S. ;

Barter, W. ;

Bates, A. ;

Bauer, C. ;

Bauer, Th. ;

Bay, A. ;

Bediaga, I. ;

Belogurov, S. ;

Belous, K. ;

Belyaev, I. ;

Ben-Haim, E. ;

Benayoun, M. ;

Bencivenni, G. ;

Benson, S. ;

Benton, J. ;

Bernet, R. ;

Bettler, M-O ;

van Beuzekom, M. ;

Bien, A. .

PHYSICAL REVIEW LETTERS, 2012, 108 (10)

[3]

Aaij R., ARXIV170600758 LHCB

[4] Performance of the LHCb RICH detector at the LHC [J].

Adinolfi, M. ;

Rinella, G. Aglieri ;

Albrecht, E. ;

Bellunato, T. ;

Benson, S. ;

Blake, T. ;

Blanks, C. ;

Brisbane, S. ;

Brook, N. H. ;

Calvi, M. ;

Cameron, B. ;

Cardinale, R. ;

Carson, L. ;

Contu, A. ;

Coombes, M. ;

D'Ambrosio, C. ;

Easo, S. ;

Egede, U. ;

Eisenhardt, S. ;

Fanchini, E. ;

Fitzpatrick, C. ;

Fontanelli, F. ;

Forty, R. ;

Frei, C. ;

Gandini, P. ;

Gao, R. ;

Tico, J. Garra ;

Giachero, A. ;

Gibson, V. ;

Gotti, C. ;

Gregson, S. ;

Gys, T. ;

Haines, S. C. ;

Hampson, T. ;

Harnew, N. ;

Hill, D. ;

Hunt, P. ;

John, M. ;

Jones, C. R. ;

Johnson, D. ;

Kanaya, N. ;

Katvars, S. ;

Kerzel, U. ;

Kim, Y. M. ;

Koblitz, S. ;

Kucharczyk, M. ;

Lambert, D. ;

Main, A. ;

Maino, M. ;

Malde, S. .

EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (05) :1-17

[5] A direct search for the C P-violating decay KS→3π0 with the KLOE detector at DAΦNE [J].

Ambrosino, F ;

Antonelli, A ;

Antonelli, M ;

Bacci, C ;

Beltrame, P ;

Bencivenni, G ;

Bertolucci, S ;

Bini, C ;

Bloise, C ;

Bocci, V ;

Bossi, F ;

Bowring, D ;

Branchini, P ;

Caloi, R ;

Campana, P ;

Capon, G ;

Capussella, T ;

Ceradini, F ;

Chi, S ;

Chiefari, G ;

Ciambrone, P ;

Conetti, S ;

De Lucia, E ;

De Santis, A ;

De Simone, P ;

De Zorzi, G ;

Dell'Agnello, S ;

Denig, A ;

Di Domenico, A ;

Di Donato, C ;

Di Falco, S ;

Di Micco, B ;

Doria, A ;

Dreucci, M ;

Felici, G ;

Ferrari, A ;

Ferrer, ML ;

Finocchiaro, G ;

Forti, C ;

Franzini, P ;

Gatti, C ;

Gauzzi, P ;

Giovannella, S ;

Gorini, E ;

Graziani, E ;

Incagli, M ;

Kluge, W ;

Kulikov, V ;

Lacava, F ;

Lanfranchi, G .

PHYSICS LETTERS B, 2005, 619 (1-2) :61-70

[6]

[Anonymous], ARXIV14116546

[7]

[Anonymous], ARXIV14110109

[8]

[Anonymous], J HIGH ENERGY PHYS

[9]

[Anonymous], 2015, PHYS REV C

[10]

[Anonymous], 2016, INT WORKSH PHYS EXT

← 1 2 3 4 5 →