The neutral kaon decays to π+π-π0:: a detailed analysis of the CPLEAR data

被引：46

作者：

Angelopoulos, A ^{[1
]}

Apostolakis, A

Aslanides, E

Backenstoss, G

Bargassa, P

Behnke, O

Benelli, A

Bertin, V

Blanc, F

Bloch, P

Carlson, P

Carroll, M

Cawley, E

Chertok, MB

Danielsson, M

Dejardin, M

Derre, J

Ealet, A

Eleftheriadis, C

Faravel, L

Fassnacht, P

Fetscher, W

Fidecaro, M

Filipcic, A

Francis, D

Fry, J

Gabathuler, E

Gamet, R

Gerber, HJ

Go, A

Haselden, A

Hayman, PJ

Henry-Couannier, F

Hollander, RW

Jon-And, K

Kettle, PR

Kokkas, P

Kreuger, R

Le Gac, R

Leimgruber, F

Mandic, I

Manthos, N

Marel, G

Mikuz, M

Miller, J

Montanet, F

Nakada, T

Pagels, B

Papadopoulos, I

Pavlopoulos, P

机构：

[1] Univ Athens, Athens, Greece

[2] Univ Basel, Basel, Switzerland

[3] Boston Univ, Boston, MA 02215 USA

[4] CERN, CH-1211 Geneva 23, Switzerland

[5] Univ Coimbra, P-3000 Coimbra, Portugal

[6] Delft Univ Technol, NL-2600 AA Delft, Netherlands

[7] Univ Fribourg, CH-1700 Fribourg, Switzerland

[8] Univ Ioannina, GR-45110 Ioannina, Greece

[9] Univ Liverpool, Liverpool L69 3BX, Merseyside, England

[10] Univ Ljubljana, Jozef Stefan Inst, Ljubljana, Slovenia

[11] Univ Ljubljana, Dept Phys, Ljubljana 61000, Slovenia

[12] CNRS, IN2P3, CPPM, Marseille, France

[13] Univ Aix Marseille 2, F-13284 Marseille 07, France

[14] CNRS, IN2P3, CSNSM, F-91405 Orsay, France

[15] Paul Scherrer Inst, Villigen, Switzerland

[16] Ctr Etud Saclay, DAPNIA, DSM, CEA, F-91191 Gif Sur Yvette, France

[17] Royal Inst Technol, S-10044 Stockholm, Sweden

[18] Univ Thessaloniki, GR-54006 Salonika, Greece

[19] ETH Zurich, IPP, Zurich, Switzerland

来源：

EUROPEAN PHYSICAL JOURNAL C | 1998年 / 5卷 / 03期

关键词：

D O I：

10.1007/s100520050285

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：

A detailed analysis of neutral kaons decaying to pi(+)pi(-)pi(0) is presented based on the complete data set containing half a million events. Time-dependent decay rate asymmetries are measured between initially tagged K-0 and (K) over bar(0) and for different regions of the phase space. These asymmetries, resulting from the interference between the CP-coaserving decay amplitude of K-L and the decay amplitude of K-S - either CP-violating or CP-conserving - allow the determination of the K-S parameters eta(+-0) (CP-violating) and lambda (CP-conserving), and also of the main isospin components of the K-S decay amplitude. The branching ratio of K-S --> pi(+)pi(-)pi(0) (CP-conserving) is deduced directly from lambda. In addition, we extract the slope parameters describing the energy dependence of the K-L --> pi(+)pi(-)pi(0) Dalitz plot. The whole set of out. results fits well within the current phenomenological picture of the neutral-kaon system including CP violation and Chiral Perturbation Theory (ChPT).

引用

页码：389 / 409

页数：21

共 31 条

[1] The design, construction and performance of the ALEPH silicon vertex detector [J].

Mours, B ;

Boudreau, J ;

Jacobsen, RG ;

Mattison, T ;

Martin, EB ;

Menary, S ;

Moneta, L ;

Redlinger, G ;

Focardi, E ;

Parrini, G ;

Scarlini, E ;

Walther, S ;

Carr, J ;

Coyle, P ;

Drinkard, J ;

Rousseau, D ;

Schwemling, P ;

Bauer, C ;

Becker, H ;

Brown, D ;

Cattaneo, P ;

Dietl, H ;

Hauff, D ;

Holl, P ;

Lauber, J ;

Lutz, G ;

Lutjens, G ;

Manner, W ;

Moser, HG ;

Schwarz, AS ;

Settles, R ;

Seywerd, HCJ ;

Struder, L ;

Waltermann, G ;

Batignani, G ;

Bosi, F ;

Bosisio, L ;

Carpinelli, M ;

CiocciMarrocchesi, A ;

DellOrso, R ;

Forti, F ;

Giorgi, M ;

Piccinini, S ;

Profeti, A ;

Rizzi, D ;

Rizzo, G ;

Tonelli, G ;

Triggiani, G ;

VanniniCastaldi, C ;

Verdini, PG .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 379 (01) :101-115

[2] New evidence on the primary cosmic ray nuclei spectra cutoff in the energy region greater than or similar to 10(16) eV [J].

Barnaveli, TT ;

Chubenko, AP ;

Eristavi, NA ;

Khaldeeva, IV ;

Nesterova, NM ;

Werbetsky, YG .

PHYSICS LETTERS B, 1996, 369 (3-4) :372-376

[3] MEASUREMENT OF THE CP VIOLATION PARAMETER ETA(+-) USING TAGGED K-0 AND (K)OVER-BAR(0) [J].

ADLER, R ;

ALHALEL, T ;

ANGELOPOULOS, A ;

APOSTOLAKIS, A ;

ASLANIDES, E ;

BACKENSTOSS, G ;

BEE, CP ;

BEHNKE, O ;

BENELLI, A ;

BENNET, J ;

BERTIN, V ;

BIENLEIN, JK ;

BLANC, F ;

BLOCH, P ;

BULA, C ;

CARLSON, P ;

CARROLL, M ;

CARVALHO, J ;

CAWLEY, E ;

CHARALAMBOUS, S ;

CHARDALAS, M ;

CHARDIN, G ;

CHERTOK, MB ;

CODY, A ;

DANIELSSON, M ;

DEDOUSSIS, S ;

DEJARDIN, M ;

DERRE, J ;

DODGSON, M ;

DUCLOS, J ;

EALET, A ;

ECKART, B ;

ELEFTHERIADIS, C ;

EVANGELOU, I ;

FARAVEL, L ;

FASSNACHT, P ;

FAURE, JL ;

FELDER, C ;

FERREIRAMARQUES, R ;

FETSCHER, W ;

FIDECARO, M ;

FILIPCIC, A ;

FRANCIS, D ;

FRY, J ;

FUGLESANG, C ;

GABATHULER, E ;

GAMET, R ;

GARRETA, D ;

GERALIS, T ;

GERBER, HJ .

PHYSICS LETTERS B, 1995, 363 (04) :243-248

[4] CPLEAR results on the CP parameters of neutral kaons decaying to pi(+)pi(-)pi(0) [J].

Adler, R ;

Angelopoulos, A ;

Apostolakis, A ;

Aslanides, E ;

Backenstoss, G ;

Bargassa, P ;

Bee, CP ;

Behnke, O ;

Benelli, A ;

Bertin, V ;

Blanc, F ;

Bloch, P ;

Carlson, P ;

Carroll, M ;

Carvalho, J ;

Cawley, E ;

Charalambous, S ;

Chardin, G ;

Chertok, MB ;

Cody, A ;

Danielsson, M ;

Dejardin, M ;

Derre, J ;

Ealet, A ;

Eckart, B ;

Eleftheriadis, C ;

Evangelou, I ;

Faravel, L ;

Fassnacht, P ;

Felder, C ;

FerreiraMarques, R ;

Fetscher, W ;

Fidecaro, M ;

Filipcic, A ;

Francis, D ;

Fry, J ;

Gabathuler, E ;

Gamet, R ;

Garreta, D ;

Gerber, HJ ;

Go, A ;

Guyot, C ;

Haselden, A ;

Hayman, PJ ;

HenryCouannier, F ;

Hollander, RW ;

Hubert, E ;

JonAnd, K ;

Kettle, PR ;

Kochowski, C .

PHYSICS LETTERS B, 1997, 407 (02) :193-200

[5]

ADLER R, 1997, P WORKSH K PHYS ORS, P307

[6] Measurement of the neutral kaon regeneration amplitude in carbon at momenta below 1 GeV/c [J].

Angelopoulos, A ;

Apostolakis, A ;

Aslanides, E ;

Backenstoss, G ;

Bargassa, P ;

Behnke, O ;

Benelli, A ;

Bertin, V ;

Blanc, F ;

Bloch, P ;

Carlson, P ;

Carroll, M ;

Carvalho, J ;

Cawley, E ;

Charalambous, S ;

Chardin, G ;

Chertok, MB ;

Cody, A ;

Danielsson, M ;

Dejardin, M ;

Derre, J ;

Ealet, A ;

Eleftheriadis, C ;

Evangelou, I ;

Faravel, L ;

Ferreira-Marques, R ;

Fetscher, W ;

Fidecaro, M ;

Filipcic, A ;

Francis, D ;

Fry, J ;

Gabathuler, E ;

Gamet, R ;

Garreta, D ;

Gerber, HJ ;

Go, A ;

Haselden, A ;

Hayman, PJ ;

Henry-Couannier, F ;

Hollander, RW ;

Hubert, E ;

Jon-And, K ;

Kettle, PR ;

Kokkas, P ;

Kreuger, R ;

Le Gac, R ;

Leimgruber, F ;

Liolios, A ;

Machado, E ;

Mandic, I .

PHYSICS LETTERS B, 1997, 413 (3-4) :422-430

[7]

BARLOW R, 1990, COMP PHYS COMMUN, V53, P325

[8] SEARCH FOR CP VIOLATION IN THE K0-]PI+PI-PI-0 DECAY [J].

BARMIN, VV ;

BARYLOV, VG ;

CHISTYAKOVA, TA ;

CHUVILO, IV ;

DAVIDENKO, GV ;

DEMIDOV, VS ;

DOLGOLENKO, AG ;

MATVEEV, VA ;

MESHKOVSKY, AG ;

MIROSIDI, GS ;

MOSKALEV, VI ;

SHEBANOV, VA ;

SHISHOV, NN ;

SOKOLOV, MM ;

VOLKOV, BS ;

ZOMBKOVSKAYA, NK ;

BALDOCEOLIN, M ;

CALIMANI, E ;

CIAMPOLILLO, S ;

MATTIOLI, F ;

MIARI, G ;

SCONZA, A .

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS, 1985, 85 (01) :67-74

[9] Particles and field .1. Review of particle physics [J].

Barnett, RM ;

Carone, CD ;

Groom, DE ;

Trippe, TG ;

Wohl, CG ;

Armstrong, B ;

Gee, PS ;

Wagman, GS ;

James, F ;

Mangano, M ;

Monig, K ;

Montanet, L ;

Feng, JL ;

Murayama, H ;

Hernandez, JJ ;

Manohar, A ;

AguilarBenitez, M ;

Caso, C ;

Crawford, RL ;

Roos, M ;

Tornqvist, NA ;

Hayes, KG ;

Hagiwara, K ;

Nakamura, K ;

Tanabashi, M ;

Olive, K ;

Honscheid, K ;

Burchat, PR ;

Shrock, RE ;

Eidelman, S ;

Schindler, RH ;

Gurtu, A ;

Hikasa, K ;

Conforto, G ;

Workman, RL ;

Grab, C ;

Amsler, C .

PHYSICAL REVIEW D, 1996, 54 (01) :1-+

[10] K-]PI-PI-PI-DECAYS IN LARGE NC CHIRAL PERTURBATION-THEORY [J].

CHENG, HY .

PHYSICS LETTERS B, 1990, 238 (2-4) :399-405

← 1 2 3 4 →