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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 D →π π π is 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 collected 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)%. 0 - + 0 -1