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Search for CP violation in D0→π-π+π0decays with the energy test
- Author(s): Aaij, R;
- Adeva, B;
- Adinolfi, M;
- Affolder, A;
- Ajaltouni, Z;
- Akar, S;
- Albrecht, J;
- Alessio, F;
- Alexander, M;
- Ali, S;
- Alkhazov, G;
- Alvarez Cartelle, P;
- Alves, AA;
- Amato, S;
- Amerio, S;
- Amhis, Y;
- An, L;
- Anderlini, L;
- Anderson, J;
- Andreassen, R;
- Andreotti, M;
- Andrews, JE;
- Appleby, RB;
- Aquines Gutierrez, O;
- Archilli, F;
- Artamonov, A;
- Artuso, M;
- Aslanides, E;
- Auriemma, G;
- Baalouch, M;
- Bachmann, S;
- Back, JJ;
- Badalov, A;
- Baesso, C;
- Baldini, W;
- Barlow, RJ;
- Barschel, C;
- Barsuk, S;
- Barter, W;
- Batozskaya, V;
- Battista, V;
- Bay, A;
- Beaucourt, L;
- Beddow, J;
- Bedeschi, F;
- Bediaga, I;
- Belogurov, S;
- Belous, K;
- Belyaev, I;
- Ben-Haim, E;
- Bencivenni, G;
- Benson, S;
- Benton, J;
- Berezhnoy, A;
- Bernet, R;
- Bettler, MO;
- van Beuzekom, M;
- Bien, A;
- Bifani, S;
- Bird, T;
- Bizzeti, A;
- Bjørnstad, PM;
- Blake, T;
- Blanc, F;
- Blouw, J;
- Blusk, S;
- Bocci, V;
- Bondar, A;
- Bondar, N;
- Bonivento, W;
- Borghi, S;
- Borgia, A;
- Borsato, M;
- Bowcock, TJV;
- Bowen, E;
- Bozzi, C;
- Brambach, T;
- Brett, D;
- Britsch, M;
- Britton, T;
- Brodzicka, J;
- Brook, NH;
- Brown, H;
- Bursche, A;
- Buytaert, J;
- Cadeddu, S;
- Calabrese, R;
- Calvi, M;
- Calvo Gomez, M;
- Campana, P;
- Campora Perez, D;
- Carbone, A;
- Carboni, G;
- Cardinale, R;
- Cardini, A;
- Carson, L;
- Carvalho Akiba, K;
- Casse, G;
- Cassina, L;
- Castillo Garcia, L
- et al.
Published Web Location
http://doi.org/10.1016/j.physletb.2014.11.043No data is associated with this publication.
Abstract
A search for time-integrated CP violation in the Cabibbo-suppressed decay D0→π-π+π0is performed using for the first time an unbinned model-independent technique known as the energy test. Using proton-proton collision data, corresponding to an integrated luminosity of 2.0fb-1collected by the LHCb detector at a centre-of-mass energy of s=8TeV, the world's best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (2.6±0.5)%.