CP violation in τ± → π± KSυ and D± → π± KS: the importance of KS-KL interference

被引：50

作者：

Grossman, Yuval ^{[1
]}

Nir, Yosef ^{[2
]}

机构：

[1] Cornell Univ, Inst High Energy Phenomenol, Newman Lab Elementary Particle Phys, Ithaca, NY 14853 USA

[2] Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2012年 / 04期

基金：

以色列科学基金会;

关键词：

B-Physics; CP violation; DECAYS;

D O I：

10.1007/JHEP04(2012)002

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The B-factories have measured CP asymmetries in the tau -> pi K(S)v and D -> K-S pi modes. The K-S state is identified by its decay to two pions at a time that is close to the K-S lifetime. Within the Standard Model and many of its extensions, the asymmetries in these modes come from CP violation in K-0 - (K) over bar (0) mixing. We emphasize that the interference between the amplitudes of intermediate K-S and K-L is as important as the pure K-S amplitude. Consequently, the measured asymmetries depend on the times over which the relevant decay rates are integrated and on features of the experiment.

引用

页数：9

共 18 条

[1] Phenomenology of neutral D-meson decays and double-flavour oscillations [J].

Azimov, YI .

EUROPEAN PHYSICAL JOURNAL A, 1999, 4 (01) :21-31

[2]

AZIMOV YI, 1981, SOV J NUCL PHYS+, V33, P205

[3] A 'known' CP asymmetry in τ decays [J].

Bigi, II ;

Sanda, AI .

PHYSICS LETTERS B, 2005, 625 (1-2) :47-52

[4] Search for CP Violation in τ± → KS0π±ντ Decays at Belle [J].

Bischofberger, M. ;

Hayashii, H. ;

Adamczyk, K. ;

Aihara, H. ;

Aulchenko, V. ;

Bakich, A. M. ;

Balagura, V. ;

Barberio, E. ;

Belous, K. ;

Bozek, A. ;

Bracko, M. ;

Browder, T. E. ;

Chen, P. ;

Cheon, B. G. ;

Chiang, C. -C. ;

Cho, I. -S. ;

Cho, K. ;

Choi, Y. ;

Danilov, M. ;

Dolezal, Z. ;

Drutskoy, A. ;

Eidelman, S. ;

Epifanov, D. ;

Golob, B. ;

Ha, H. ;

Haba, J. ;

Hayasaka, K. ;

Horii, Y. ;

Hoshi, Y. ;

Hou, W. -S. ;

Hsiung, Y. B. ;

Hyun, H. J. ;

Inami, K. ;

Ishikawa, A. ;

Itoh, R. ;

Iwabuchi, M. ;

Iwasaki, Y. ;

Julius, T. ;

Kang, J. H. ;

Kawai, H. ;

Kawasaki, T. ;

Kiesling, C. ;

Kim, H. O. ;

Kim, M. J. ;

Kim, Y. J. ;

Kinoshita, K. ;

Ko, B. R. ;

Kodys, P. ;

Krizan, P. ;

Kwon, Y. -J. .

PHYSICAL REVIEW LETTERS, 2011, 107 (13)

[5] Is there a paradox in CP asymmetries of τ± → KL,Sπ±ν decays? [J].

Calderon, G. ;

Delepine, D. ;

Lopez Castro, G. .

PHYSICAL REVIEW D, 2007, 75 (07)

[6] Measurement of absolute hadronic branching fractions of D mesons and e+e- → D(D)over-bar cross sections at the ψ(3770) [J].

Dobbs, S. ;

Metreveli, Z. ;

Seth, K. K. ;

Tomaradze, A. ;

Ecklund, K. M. ;

Love, W. ;

Savinov, V. ;

Lopez, A. ;

Mehrabyan, S. ;

Mendez, H. ;

Ramirez, J. ;

Huang, G. S. ;

Miller, D. H. ;

Pavlunin, V. ;

Sanghi, B. ;

Shipsey, I. P. J. ;

Xin, B. ;

Adams, G. S. ;

Anderson, M. ;

Cummings, J. P. ;

Danko, I. ;

Hu, D. ;

Moziak, B. ;

Napolitano, J. ;

He, Q. ;

Insler, J. ;

Muramatsu, H. ;

Park, C. S. ;

Thorndike, E. H. ;

Yang, F. ;

Artuso, M. ;

Blusk, S. ;

Khalil, S. ;

Li, J. ;

Menaa, N. ;

Mountain, R. ;

Nisar, S. ;

Randrianarivony, K. ;

Sia, R. ;

Skwarnicki, T. ;

Stone, S. ;

Wang, J. C. ;

Bonvicini, G. ;

Cinabro, D. ;

Dubrovin, M. ;

Lincoln, A. ;

Asner, D. M. ;

Edwards, K. W. ;

Naik, P. ;

Briere, R. A. .

PHYSICAL REVIEW D, 2007, 76 (11)

[7] Determining γ using B±→DK± with multibody D decays -: art. no. 054018 [J].

Giri, A ;

Grossman, Y ;

Soffer, A ;

Zupan, J .

PHYSICAL REVIEW D, 2003, 68 (05)

[8]

Gronau M., 2001, PHYS REV D, VD 69

[9] Testing New Indirect CP Violation [J].

Grossman, Yuval ;

Nir, Yosef ;

Perez, Gilad .

PHYSICAL REVIEW LETTERS, 2009, 103 (07)

[10] Search for CP Violation in the Decays D(s)+ → KS0π+ and D(s)+ → KS0K+ [J].

Ko, B. R. ;

Won, E. ;

Aihara, H. ;

Aulchenko, V. ;

Aushev, T. ;

Bakich, A. M. ;

Balagura, V. ;

Barberio, E. ;

Belous, K. ;

Bhardwaj, V. ;

Bischofberger, M. ;

Bozek, A. ;

Bracko, M. ;

Browder, T. E. ;

Chang, P. ;

Chen, A. ;

Chen, P. ;

Cheon, B. G. ;

Cho, I. -S. ;

Choi, Y. ;

Dalseno, J. ;

Das, A. ;

Dolezal, Z. ;

Drutskoy, A. ;

Eidelman, S. ;

Goldenzweig, P. ;

Golob, B. ;

Ha, H. ;

Hara, T. ;

Hayashii, H. ;

Horii, Y. ;

Hoshi, Y. ;

Hou, W. -S. ;

Hsiung, Y. B. ;

Hyun, H. J. ;

Iijima, T. ;

Inami, K. ;

Itoh, R. ;

Iwabuchi, M. ;

Iwasaki, M. ;

Joshi, N. J. ;

Kah, D. H. ;

Kang, J. H. ;

Kapusta, P. ;

Katayama, N. ;

Kawasaki, T. ;

Kim, H. O. ;

Kim, Y. J. ;

Korpar, S. ;

Krizan, P. .

PHYSICAL REVIEW LETTERS, 2010, 104 (18)

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