Measurement of matter-antimatter differences in beauty baryon decays

Standard

Measurement of matter-antimatter differences in beauty baryon decays. / Aaij, R.; Adeva, B.; Adinolfi, M. и др.

в: Nature Physics, Том 13, № 4, 01.04.2017, стр. 391-396.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

Aaij, R, Adeva, B, Adinolfi, M, 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, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, D'Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baszczyk, M, Batozskaya, V, Batsukh, B, Battista, V, Bay, A, Bondar, A, Eidelman, S, Krokovny, P , Shekhtman, L, Vorobyev, V & The LHCb Collaboration 2017, 'Measurement of matter-antimatter differences in beauty baryon decays', Nature Physics, Том. 13, № 4, стр. 391-396. https://doi.org/10.1038/nphys4021

APA

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., ... The LHCb Collaboration (2017). Measurement of matter-antimatter differences in beauty baryon decays. Nature Physics, 13(4), 391-396. https://doi.org/10.1038/nphys4021

Vancouver

Aaij R, Adeva B, Adinolfi M, Ajaltouni Z, Akar S, Albrecht J и др. Measurement of matter-antimatter differences in beauty baryon decays. Nature Physics. 2017 апр. 1;13(4):391-396. doi: 10.1038/nphys4021

Author

Aaij, R. ; Adeva, B. ; Adinolfi, M. и др. / Measurement of matter-antimatter differences in beauty baryon decays. в: Nature Physics. 2017 ; Том 13, № 4. стр. 391-396.

BibTeX

@article{ccd010566c6f4e46a8b75dd48e82fe7b,

title = "Measurement of matter-antimatter differences in beauty baryon decays",

abstract = "Differences in the behaviour of matter and antimatter have been observed in K and B meson decays, but not yet in any baryon decay. Such differences are associated with the non-invariance of fundamental interactions under the combined charge-conjugation and parity transformations, known as CP violation. Here, using data from the LHCb experiment at the Large Hadron Collider, we search for CP-violating asymmetries in the decay angle distributions of Λb 0 baryons decaying to pπ- π+ π- and pπ-K+K- final states. These four-body hadronic decays are a promising place to search for sources of CP violation both within and beyond the standard model of particle physics. We find evidence for CP violation in Λb 0 to pπ- π+ π- decays with a statistical significance corresponding to 3.3 standard deviations including systematic uncertainties. This represents the first evidence for CP violation in the baryon sector.",

keywords = "CP-VIOLATION, LAMBDA(B)",

author = "R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and F. Archilli and P. D'Argent and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and S. Baker and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and M. Baszczyk and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and A. Bondar and S. Eidelman and P. Krokovny and L. Shekhtman and V. Vorobyev and {The LHCb Collaboration}",

year = "2017",

month = apr,

day = "1",

doi = "10.1038/nphys4021",

language = "English",

volume = "13",

pages = "391--396",

journal = "Nature Physics",

issn = "1745-2473",

publisher = "Nature Publishing Group",

number = "4",

}

RIS

TY - JOUR

T1 - Measurement of matter-antimatter differences in beauty baryon decays

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Archilli, F.

AU - D'Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Babuschkin, I.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baker, S.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Baszczyk, M.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battista, V.

AU - Bay, A.

AU - Bondar, A.

AU - Eidelman, S.

AU - Krokovny, P.

AU - Shekhtman, L.

AU - Vorobyev, V.

AU - The LHCb Collaboration

PY - 2017/4/1

Y1 - 2017/4/1

N2 - Differences in the behaviour of matter and antimatter have been observed in K and B meson decays, but not yet in any baryon decay. Such differences are associated with the non-invariance of fundamental interactions under the combined charge-conjugation and parity transformations, known as CP violation. Here, using data from the LHCb experiment at the Large Hadron Collider, we search for CP-violating asymmetries in the decay angle distributions of Λb 0 baryons decaying to pπ- π+ π- and pπ-K+K- final states. These four-body hadronic decays are a promising place to search for sources of CP violation both within and beyond the standard model of particle physics. We find evidence for CP violation in Λb 0 to pπ- π+ π- decays with a statistical significance corresponding to 3.3 standard deviations including systematic uncertainties. This represents the first evidence for CP violation in the baryon sector.

AB - Differences in the behaviour of matter and antimatter have been observed in K and B meson decays, but not yet in any baryon decay. Such differences are associated with the non-invariance of fundamental interactions under the combined charge-conjugation and parity transformations, known as CP violation. Here, using data from the LHCb experiment at the Large Hadron Collider, we search for CP-violating asymmetries in the decay angle distributions of Λb 0 baryons decaying to pπ- π+ π- and pπ-K+K- final states. These four-body hadronic decays are a promising place to search for sources of CP violation both within and beyond the standard model of particle physics. We find evidence for CP violation in Λb 0 to pπ- π+ π- decays with a statistical significance corresponding to 3.3 standard deviations including systematic uncertainties. This represents the first evidence for CP violation in the baryon sector.

KW - CP-VIOLATION

KW - LAMBDA(B)

UR - http://www.scopus.com/inward/record.url?scp=85011692302&partnerID=8YFLogxK

U2 - 10.1038/nphys4021

DO - 10.1038/nphys4021

M3 - Article

AN - SCOPUS:85011692302

VL - 13

SP - 391

EP - 396

JO - Nature Physics

JF - Nature Physics

SN - 1745-2473

IS - 4

ER -

ID: 9161349