CP VIOLATING PARTIAL RATE ASYMMETRIES IN THE DECAYS B+/--]ETA-PI+/-, ETA'PI+/-, ETA-C-PI+/- - A K-MATRIX ANALYSIS

被引：23

作者：

BARSHAY, S

REIN, D

SEHGAL, LM

机构：

[1] III. Physikalisches Institut, Technische Hochschule

来源：

PHYSICS LETTERS B | 1991年 / 259卷 / 04期

关键词：

D O I：

10.1016/0370-2693(91)91660-N

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyse the CP-violating asymmetries in the partial decay widths of B +/- --> pi +/- eta and B +/- --> pi +/- eta. The asymmetry is assumed to arise as a result of strong-interaction mixing of the channels pi +/- eta(eta') with the channel pi +/- eta-c. The strength of the mixing is obtained using data on the decays eta-c --> eta(eta')pi-pi. Inelastic unitarity is implemented with the help of the K-matrix formalism. We predict large asymmetries, up to about 20%, with branching ratios of 10(-6)-10(-5). Therefore, these decays provide the best place for testing in charged modes the hypothesis that CP noninvariance arises from a nonzero phase in the quark-mixing matrix.

引用

页码：475 / 480

页数：6

共 15 条

[1] CP NONINVARIANCE IN THE DECAYS OF HEAVY CHARGED QUARK SYSTEMS [J].

BANDER, M ;

SILVERMAN, D ;

SONI, A .

PHYSICAL REVIEW LETTERS, 1979, 43 (04) :242-245

[2] CP VIOLATION IN THE DECAYS B+/--]D0DBAR0-PI+/- [J].

BARSHAY, S ;

SEHGAL, LM .

PHYSICS LETTERS B, 1987, 185 (1-2) :150-157

[3] NEW TEST OF CP NONINVARIANCE IN NON-LEPTONIC DECAY OF MESONS CONTAINING ONE BOTTOM QUARK [J].

BARSHAY, S ;

GERIS, J .

PHYSICS LETTERS B, 1979, 84 (03) :319-322

[4] CAN CP VIOLATION BE SEEN DIRECTLY AS A DIFFERENCE IN EXCLUSIVE CHARGED DECAY MODES - B+/--]PBAR-P-PI+/- [J].

BARSHAY, S ;

EICH, E ;

SEHGAL, L .

PHYSICS LETTERS B, 1988, 202 (03) :402-410

[5]

BARSHAY S, 1988, PHYS LETT B, V212, pE542

[6] EXCLUSIVE NONLEPTONIC DECAYS OF D-MESONS, DS-MESONS AND B-MESONS [J].

BAUER, M ;

STECH, B ;

WIRBEL, M .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (01) :103-115

[7] SEARCH FOR B-]U TRANSITIONS IN EXCLUSIVE HADRONIC B-MESON DECAYS [J].

BORTOLETTO, D ;

GOLDBERG, M ;

HORWITZ, N ;

MESTAYER, MD ;

MONETI, GC ;

SHARMA, V ;

SHIPSEY, IPJ ;

SKWARNICKI, T ;

CSORNA, SE ;

LETSON, T ;

BROCK, IC ;

FERGUSON, T ;

ARTUSO, M ;

BEBEK, C ;

BERKELMAN, K ;

BLUCHER, E ;

BYRD, J ;

CASSEL, DG ;

CHEU, E ;

COFFMAN, DM ;

CRAWFORD, G ;

DESALVO, R ;

DEWIRE, JW ;

DRELL, PS ;

EHRLICH, R ;

GALIK, RS ;

GITTELMAN, B ;

GRAY, SW ;

HALLING, AM ;

HARTILL, DL ;

HELTSLEY, BK ;

KANDASWAMY, J ;

KOWALEWSKI, R ;

KREINICK, DL ;

KUBOTA, Y ;

LEWIS, JD ;

MISTRY, NB ;

MUELLER, J ;

NAMJOSHI, R ;

NANDI, S ;

NORDBERG, E ;

OGRADY, C ;

PETERSON, D ;

PISHARODY, M ;

RILEY, D ;

SAPPER, M ;

SILVERMAN, A ;

STONE, S ;

WORDEN, H ;

WORRIS, M .

PHYSICAL REVIEW LETTERS, 1989, 62 (21) :2436-2439

[8]

DANILOV M, 1989, 14 P INT S LEPT PHOT

[9] CP NONCONSERVATION AND CPT - REASSESSMENT OF LOOP EFFECTS IN CHARMLESS B-DECAYS [J].

GERARD, JM ;

HOU, WS .

PHYSICAL REVIEW LETTERS, 1989, 62 (08) :855-858

[10]

HERNANDEZ JJ, 1990, PHYS LETT B, V239, P1

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