Search for CP violation in D^0 -> pi^0 pi^0 decays

A. Abdesselam; A. Bala; A. Bobrov; A. Bozek; A. Drutskoy; A. Garmash; A. Ishikawa; A. J. Schwartz; A. Kuzmin; A. M. Bakich

Search for CP violation in D⁰ -> pi⁰ pi⁰ 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 1404.1266 v2 pith:CSQSXSFJ submitted 2014-04-04 hep-ex

Search for CP violation in D⁰ -> pi⁰ pi⁰ decays

N. K. Nisar , K. Trabelsi , G. B. Mohanty , T. Aziz , A. Abdesselam , I. Adachi , H. Aihara , K. Arinstein

show 156 more authors

D. M. Asner V. Aulchenko T. Aushev R. Ayad S. Bahinipati A. M. Bakich A. Bala V. Bansal P. Behera K. Belous V. Bhardwaj A. Bobrov G. Bonvicini A. Bozek M. Bra\v{c}ko T. E. Browder D. \v{C}ervenkov B. G. Cheon K. Chilikin K. Cho V. Chobanova Y. Choi D. Cinabro J. Dalseno M. Danilov Z. Dole\v{z}al Z. Dr\'asal A. Drutskoy D. Dutta K. Dutta S. Eidelman D. Epifanov H. Farhat J. E. Fast T. Ferber V. Gaur N. Gabyshev S. Ganguly A. Garmash Y. M. Goh B. Golob T. Hara H. Hayashii X. H. He Y. Hoshi W.-S. Hou T. Iijima A. Ishikawa R. Itoh Y. Iwasaki T. Iwashita J. H. Kang T. Kawasaki C. Kiesling D. Y. Kim J. B. Kim J. H. Kim M. J. Kim Y. J. Kim K. Kinoshita B. R. Ko P. Kody\v{s} S. Korpar P. Kri\v{z}an P. Krokovny T. Kuhr R. Kumar A. Kuzmin Y.-J. Kwon J. S. Lange S.-H. Lee L. Li Gioi J. Libby D. Liventsev P. Lukin B. Macek D. Matvienko K. Miyabayashi H. Miyata R. Mizuk A. Moll R. Mussa E. Nakano M. Nakao M. Nayak E. Nedelkovska O. Nitoh S. Ogawa S. Okuno P. Pakhlov G. Pakhlova H. Park H. K. Park T. K. Pedlar T. Peng R. Pestotnik M. Petri\v{c} L. E. Piilonen E. Ribe\v{z}l M. Ritter M. R\"ohrken A. Rostomyan Y. Sakai S. Sandilya L. Santelj T. Sanuki Y. Sato O. Schneider G. Schnell C. Schwanda A. J. Schwartz D. Semmler K. Senyo O. Seon M. E. Sevior M. Shapkin V. Shebalin T.-A. Shibata J.-G. Shiu B. Shwartz F. Simon Y.-S. Sohn A. Sokolov E. Solovieva S. Stani\v{c} M. Stari\v{c} M. Steder J. Stypula T. Sumiyoshi G. Tatishvili Y. Teramoto M. Uchida T. Uglov S. Uno P. Urquijo Y. Usov S. E. Vahsen C. Van Hulse P. Vanhoefer G. Varner K. E. Varvell M. N. Wagner C. H. Wang M.-Z. Wang P. Wang Y. Watanabe K. M. Williams E. Won J. Yamaoka Y. Yamashita S. Yashchenko Y. Yook Z. P. Zhang V. Zhilich V. Zhulanov A. Zupanc

This is my paper

classification hep-ex

keywords decaysviolationasymmetrysearchstatsystasymmetric-energybelle

verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved

0 comments

read the original abstract

We search for CP violation in neutral charm meson decays using a data sample with an integrated luminosity of 966 fb^-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. The asymmetry obtained in the rate of D^0 and D^0-bar decays to the pi^0 pi^0 final state, [-0.03+-0.64(stat)+-0.10(syst)]%, is consistent with no CP violation. This constitutes an order of magnitude improvement over the existing result. We also present an updated measurement of the CP asymmetry in the D^0 -> K_S pi^0 decay: A_{CP}(D^0 -> K_S pi^0) = [-0.21+-0.16(stat)+-0.07(syst)]%.

discussion (0)

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

CP asymmetries in charged meson decay to two pions
hep-ph 2026-05 unverdicted novelty 4.0

CP asymmetries for B+ to pi+ pi0, D+ to pi+ pi0, and K+ to pi+ pi0 are estimated in the Standard Model at roughly 3 times 10 to the -3, 10 to the -5, and 10 to the -6 using a unified formalism for isospin violation.