Pith. sign in

REVIEW

First observation of CP violation and improved measurement of the branching fraction and polarization of B0 -> D*+ D*- decays

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1207.5611 v2 pith:YGUOEBP4 submitted 2012-07-24 hep-ex

First observation of CP violation and improved measurement of the branching fraction and polarization of B0 -> D*+ D*- decays

Belle Collaboration: B. Kronenbitter , I. Adachi , H. Aihara , K. Arinstein , D. M. Asner , T. Aushev , T. Aziz , A. M. Bakich
show 154 more authors
M. Barrett K. Belous V. Bhardwaj B. Bhuyan A. Bondar A. Bozek M. Bra\v{c}ko O. Brovchenko T. E. Browder V. Chekelian A. Chen P. Chen B. G. Cheon R. Chistov I.-S. Cho K. Cho Y. Choi J. Dalseno Z. Dole\v{z}al Z. Dr\'asal A. Drutskoy S. Eidelman S. Esen J. E. Fast M. Feindt V. Gaur N. Gabyshev Y. M. Goh J. Haba H. Hayashii Y. Horii Y. Hoshi W.-S. Hou Y. B. Hsiung T. Iijima K. Inami A. Ishikawa R. Itoh M. Iwabuchi Y. Iwasaki T. Julius J. H. Kang P. Kapusta T. Kawasaki C. Kiesling H. J. Kim H. O. Kim J. B. Kim J. H. Kim K. T. Kim M. J. Kim Y. J. Kim K. Kinoshita B. R. Ko S. Koblitz P. Kody\v{s} S. Korpar R. T. Kouzes P. Kri\v{z}an P. Krokovny T. Kuhr R. Kumar T. Kumita Y.-J. Kwon S.-H. Lee J. Li Y. Li J. Libby Y. Liu Z. Q. Liu D. Liventsev R. Louvot S. McOnie K. Miyabayashi H. Miyata R. Mizuk G. B. Mohanty D. Mohapatra A. Moll E. Nakano M. Nakao S. Neubauer C. Ng S. Nishida K. Nishimura O. Nitoh T. Ohshima S. Okuno S. L. Olsen Y. Onuki H. Ozaki P. Pakhlov G. Pakhlova C. W. Park H. Park H. K. Park R. Pestotnik M. Petri\v{c} L. E. Piilonen M. Prim M. Ritter M. R\"ohrken S. Ryu H. Sahoo Y. Sakai S. Sandilya L. Santelj T. Sanuki O. Schneider C. Schwanda A. J. Schwartz K. Senyo M. E. Sevior M. Shapkin C. P. Shen T.-A. Shibata J.-G. Shiu A. Sibidanov F. Simon P. Smerkol Y.-S. Sohn A. Sokolov E. Solovieva S. Stani\v{c} M. Stari\v{c} M. Sumihama K. Sumisawa T. Sumiyoshi G. Tatishvili Y. Teramoto K. Trabelsi T. Tsuboyama M. Uchida S. Uehara T. Uglov Y. Unno S. Uno Y. Usov P. Vanhoefer G. Varner K. E. Varvell V. Vorobyev C. H. Wang P. Wang Y. Watanabe K. M. Williams E. Won B. D. Yabsley J. Yamaoka Y. Yamashita D. Zander V. Zhilich V. Zhulanov A. Zupanc
This is my paper
classification hep-ex
keywords fractionbranchingviolationdecaysmeasurementparameterspolarizationadditionally
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
Share X Bluesky LinkedIn Reddit HN
read the original abstract

We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B0 -> D*+ D*- decays using a data sample of 772 million BB pairs, collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain a branching fraction of B = (7.82 +- 0.38 +- 0.63) x10^{-4}, a CP-odd fraction of R_\perp = 0.138 +- 0.024 +- 0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R_0 = 0.624 +- 0.029 +- 0.011. The measured values of the parameters of the CP violation are S_{D*+ D*-} = -0.79 +- 0.13 +- 0.03 and A_{D*+ D*-} = 0.15 +- 0.08 +- 0.04.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.