Simultaneous measurement of the B0 meson lifetime and mixing frequency with B0→D*-l+νl decays -: art. no. 072002

被引：42

作者：

Aubert, B ^{[1
]}

Barate, R

Boutigny, D

Gaillard, JM

Hicheur, A

Karyotakis, Y

Lees, JP

Robbe, P

Tisserand, V

Zghiche, A

Palano, A

Pompili, A

Chen, JC

Qi, ND

Rong, G

Wang, P

Zhu, YS

Eigen, G

Ofte, I

Stugu, B

Abrams, GS

Borgland, AW

Breon, AB

Brown, DN

Button-Shafer, J

Cahn, RN

Charles, E

Gill, MS

Gritsan, AV

Groysman, Y

Jacobsen, RG

Kadel, RW

Kadyk, J

Kerth, LT

Kolomensky, YG

Kral, JF

LeClerc, C

Levi, ME

Lynch, G

Mir, LM

Oddone, PJ

Orimoto, TJ

Pripstein, M

Roe, NA

Romosan, A

Ronan, MT

Shelkov, VG

Telnov, AV

Wenzel, WA

Harrison, TJ

机构：

[1] Phys Particules Lab, F-74941 Annecy Le Vieux, France

[2] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy

[3] Ist Nazl Fis Nucl, I-70126 Bari, Italy

[4] Inst High Energy Phys, Beijing 100039, Peoples R China

[5] Univ Bergen, Inst Phys, N-5007 Bergen, Norway

[6] Univ Calif Berkeley, Berkeley, CA 94720 USA

[7] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[8] Univ Birmingham, Birmingham B15 2TT, W Midlands, England

[9] Ruhr Univ Bochum, Inst Phys Expt, D-44780 Bochum, Germany

[10] Univ Bristol, Bristol BS8 1TL, Avon, England

[11] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada

[12] Brunel Univ, Uxbridge UB8 3PH, Middx, England

[13] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[14] Univ Calif Irvine, Irvine, CA 92697 USA

[15] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[16] Univ Calif San Diego, La Jolla, CA 92093 USA

[17] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[18] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA

[19] CALTECH, Pasadena, CA 91125 USA

[20] Univ Cincinnati, Cincinnati, OH 45221 USA

[21] Univ Colorado, Boulder, CO 80309 USA

[22] Colorado State Univ, Ft Collins, CO 80523 USA

[23] Tech Univ Dresden, Inst Kernund Teilchenphys, D-01062 Dresden, Germany

[24] Ecole Polytech, LLR, F-91128 Palaiseau, France

[25] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland

[26] Elon Univ, Elon, NC 27244 USA

[27] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy

[28] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy

[29] Florida A&M Univ, Tallahassee, FL 32307 USA

[30] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[31] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy

[32] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[33] Harvard Univ, Cambridge, MA 02138 USA

[34] Univ Iowa, Iowa City, IA 52242 USA

[35] Iowa State Univ, Ames, IA 50011 USA

[36] Lab Accelerateur Lineaire, F-91898 Orsay, France

[37] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

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

[39] Univ London Imperial Coll Sci Technol & Med, London SW7 2BW, England

[40] Univ London, Queen Mary, London E1 4NS, England

[41] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England

[42] Univ Louisville, Louisville, KY 40292 USA

[43] Univ Maryland, College Pk, MD 20742 USA

[44] Univ Manchester, Manchester M13 9PL, Lancs, England

[45] Univ Massachusetts, Amherst, MA 01003 USA

[46] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA

[47] McGill Univ, Montreal, PQ H3A 2T8, Canada

[48] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[49] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[50] Univ Mississippi, University, MS 38677 USA

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.67.072002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We measure the B-0 lifetime tau(B)(0) and the B-0-(B) over bar (0) oscillation frequency Deltam(d) with a sample of approximately 14000 exclusively reconstructed B-0-->D(*-)l(+)nul signal events, selected from 23 million B (B) over bar pairs recorded at the Y(4S) resonance with the BABAR detector at the Stanford Linear Accelerator Center. The decay position of the other B is determined with the remaining tracks in the event, and its b-quark flavor at the time of decay is determined with a tagging algorithm that exploits the correlation between the flavor of the b quark and the charges of its decay products. The lifetime and oscillation frequencies are measured simultaneously with an unbinned maximum-likelihood fit that uses, for each event, the measured difference in decay times of the two B mesons (Deltat), the calculated uncertainty on Deltat, the signal and background probabilities, and b-quark tagging information for the other B. The results are tau(B)(0)=(1.523(-0.023)(+0.024)+/-0.022) ps and Deltam(d)=(0.492+/-0.018+/-0.013) ps(-1). The statistical correlation coefficient between tau(B)(0) and Deltam(d) is -0.22.

引用

页数：19

共 13 条

[1] Measurement of the B0 lifetime and oscillation frequency using (B)over-bar0→D*+l-(ν)over-bar decays [J].

Abbiendi, G ;

Ackerstaff, K ;

Ainsley, C ;

Åkesson, PF ;

Alexander, G ;

Allison, J ;

Anderson, KJ ;

Arcelli, S ;

Asai, S ;

Ashby, SF ;

Axen, D ;

Azuelos, G ;

Bailey, I ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Baumann, S ;

Behnke, T ;

Bell, KW ;

Bella, G ;

Bellerive, A ;

Benelli, G ;

Bentvelsen, S ;

Bethke, S ;

Biebel, O ;

Bloodworth, IJ ;

Boeriu, O ;

Bock, P ;

Böhme, J ;

Bonacorsi, D ;

Boutemeur, M ;

Braibant, S ;

Bright-Thomas, P ;

Brigliadori, L ;

Brown, RM ;

Burckhart, HJ ;

Cammin, J ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Clarke, PEL ;

Clay, E ;

Cohen, I ;

Cooke, OC ;

Couchman, J ;

Couyoumtzelis, C ;

Coxe, RL .

PHYSICS LETTERS B, 2000, 493 (3-4) :266-280

[2] OBSERVATION OF B0-B-BAR-0 MIXING [J].

ALBRECHT, H ;

ANDAM, AA ;

BINDER, U ;

BOCKMANN, P ;

GLASER, R ;

HARDER, G ;

NIPPE, A ;

SCHAFER, M ;

SCHMIDTPARZEFALL, W ;

SCHRODER, H ;

SCHULZ, HD ;

WURTH, R ;

YAGIL, A ;

DONKER, JP ;

DRESCHER, A ;

KAMP, D ;

KOLANOSKI, H ;

MATTHIESEN, U ;

SCHECK, H ;

SPAAN, B ;

SPENGLER, J ;

WEGENER, D ;

EHMANN, C ;

GABRIEL, JC ;

RUF, T ;

SCHUBERT, KR ;

STIEWE, J ;

STRAHL, K ;

WALDI, R ;

WESELER, S ;

EDWARDS, KW ;

FRISKEN, WR ;

GILKINSON, DJ ;

GINGRICH, DM ;

KAPITZA, H ;

KIM, PCH ;

KUTSCHKE, R ;

MACFARLANE, DB ;

MCKENNA, JA ;

MCLEAN, KW ;

NILSSON, AW ;

ORR, RS ;

PADLEY, P ;

PARSONS, JA ;

PATEL, PM ;

PRENTICE, JD ;

SEYWERD, HCJ ;

SWAIN, JD ;

TSIPOLITIS, G ;

YOON, TS .

PHYSICS LETTERS B, 1987, 192 (1-2) :245-252

[3] Study of time-dependent CP-violating asymmetries and flavor oscillations in neutral B decays at the Υ(4S) -: art. no. 032003 [J].

Aubert, B ;

Boutigny, D ;

Gaillard, JM ;

Hicheur, A ;

Karyotakis, Y ;

Lees, JP ;

Robbe, P ;

Tisserand, V ;

Palano, A ;

Pompili, A ;

Chen, GP ;

Chen, JC ;

Qi, ND ;

Rong, G ;

Wang, P ;

Zhu, YS ;

Eigen, G ;

Stugu, B ;

Abrams, GS ;

Borgland, AW ;

Breon, AB ;

Brown, DN ;

Button-Shafer, J ;

Cahn, RN ;

Clark, AR ;

Gill, MS ;

Gritsan, AV ;

Groysman, Y ;

Jacobsen, RG ;

Kadel, RW ;

Kadyk, J ;

Kerth, LT ;

Kolomensky, YG ;

Kral, JF ;

LeClerc, C ;

Levi, ME ;

Lynch, G ;

Oddone, PJ ;

Pripstein, M ;

Roe, NA ;

Romosan, A ;

Ronan, MT ;

Shelkov, VG ;

Telnov, AV ;

Wenzel, WA ;

Harrison, TJ ;

Hawkes, CM ;

Knowles, DJ ;

O'Neale, SW ;

Penny, RC .

PHYSICAL REVIEW D, 2002, 66 (03)

[4]

B a B ar collaboration, 2002, Nucl. Instrum. Meth. A, V479, P1

[5]

BIGI I, 2000, CP VIOLATION, pCH10

[6] UNITARY SYMMETRY AND LEPTONIC DECAYS [J].

CABIBBO, N .

PHYSICAL REVIEW LETTERS, 1963, 10 (12) :531-&

[7]

*CERN PROGR LIB, 1994, GEANT DET DESCR SIM

[8] ANALYSIS OF 3 D-]K-PI-PI DALITZ PLOTS [J].

FRABETTI, PL ;

CHEUNG, HWK ;

CUMALAT, JP ;

DALLAPICCOLA, C ;

GINKEL, JF ;

GREENE, SV ;

JOHNS, WE ;

NEHRING, MS ;

BUTLER, JN ;

CIHANGIR, S ;

GAINES, I ;

GARBINCIUS, PH ;

GARREN, L ;

GOURLAY, SA ;

HARDING, DJ ;

KASPER, P ;

KREYMER, A ;

LEBRUN, P ;

SHUKLA, S ;

VITTONE, M ;

BIANCO, S ;

FABBRI, FL ;

SARWAR, S ;

ZALLO, A ;

CULBERTSON, R ;

GARDNER, RW ;

GREENE, R ;

WISS, J ;

ALIMONTI, G ;

BELLINI, G ;

CACCIANIGA, B ;

CINQUINI, L ;

DICORATO, M ;

GIAMMARCHI, M ;

INZANI, P ;

LEVERARO, F ;

MALVEZZI, S ;

MENASCE, D ;

MERONI, E ;

MORONI, L ;

PEDRINI, D ;

PERASSO, L ;

SALA, A ;

SALA, S ;

TORRETTA, D ;

BUCHHOLZ, D ;

CLAES, D ;

GOBBI, B ;

OREILLY, B ;

BISHOP, JM .

PHYSICS LETTERS B, 1994, 331 (1-2) :217-226

[9] Review of particle physics -: art. no. 010001 [J].

Hagiwara, K ;

Hikasa, K ;

Nakamura, K ;

Tanabashi, M ;

Aguilar-Benitez, M ;

Amsler, C ;

Barnett, RM ;

Burchat, PR ;

Carone, CD ;

Caso, C ;

Conforto, G ;

Dahl, O ;

Doser, M ;

Eidelman, S ;

Feng, JL ;

Gibbons, L ;

Goodman, M ;

Grab, C ;

Groom, DE ;

Gurtu, A ;

Hayes, KG ;

Hernández-Rey, JJ ;

Honscheid, K ;

Kolda, C ;

Mangano, ML ;

Manley, DM ;

Manohar, AV ;

March-Russell, J ;

Masoni, A ;

Miquel, R ;

Monig, K ;

Murayama, H ;

Navas, S ;

Olive, KA ;

Pape, L ;

Patrignani, C ;

Piepke, A ;

Roos, M ;

Terning, J ;

Tornqvist, NA ;

Trippe, TG ;

Vogel, P ;

Wohl, CG ;

Workman, RL ;

Yao, WM ;

Armstrong, B ;

Gee, PS ;

Lugovsky, KS ;

Lugovsky, SB ;

Lugovsky, VS .

PHYSICAL REVIEW D, 2002, 66 (01)

[10] CP-VIOLATION IN RENORMALIZABLE THEORY OF WEAK INTERACTION [J].

KOBAYASHI, M ;

MASKAWA, T .

PROGRESS OF THEORETICAL PHYSICS, 1973, 49 (02) :652-657

← 1 2 →