Measurement of the xb(3p) mass and of the relative rate of xb1(1p) and xb2(1p) production

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, J. Anderson, R. AndreassenM. Andreotti, J. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, M. O. Bettler, M. van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, M. Borsato, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, J. van den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, J. Brodzicka, N. H. Brook, H. Brown, A. Bursche, G. Busetto, J. Buytaert, S. Cadeddu, R. Calabrese

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

© CERN 2014. All rights reserved. The production of Xb mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s = 7 and 8TeV and corresponding to an integrated luminosity of 3.0 fb−1. The Xb mesons are identified through their decays to γ(1S) and γ(2S)γ using photons that converted to e+e−pairs in the detector. The relative prompt production rate of Xb1(1P) and Xb2(1P) mesons is measured as a function of the X(1S) transverse momentum in the Xb rapidity range 2.0 < y < 4.5. A precise measurement of the Xb(3P) mass is also performed. Assuming a mass splitting between the Xb1(3P) and the Xb2(3P) states of 10.5 MeV/c2, the measured mass of the Xb1(3P) meson is m(Xb1(3P)) = 10515.7+2.2−3.9(stat)+1.5−2.1(syst)MeV/c2.
Original languageEnglish
Pages (from-to)1-16
Number of pages16
JournalJournal of High Energy Physics
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes

Fingerprint

mesons
protons
detectors
transverse momentum
center of mass
luminosity
collisions
photons
decay
energy

Cite this

Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., ... Calabrese, R. (2014). Measurement of the xb(3p) mass and of the relative rate of xb1(1p) and xb2(1p) production. Journal of High Energy Physics, 1-16. https://doi.org/10.1007/JHEP10(2014)088
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, A. A. ; Amato, S. ; Amerio, S. ; Amhis, Y. ; An, L. ; Anderlini, L. ; Anderson, J. ; Andreassen, R. ; Andreotti, M. ; Andrews, J. E. ; Appleby, R. B. ; Aquines Gutierrez, O. ; Archilli, F. ; Artamonov, A. ; Artuso, M. ; Aslanides, E. ; Auriemma, G. ; Baalouch, M. ; Bachmann, S. ; Back, J. J. ; Badalov, A. ; Baesso, C. ; Baldini, W. ; Barlow, R. J. ; 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, M. O. ; van Beuzekom, M. ; Bien, A. ; Bifani, S. ; Bird, T. ; Bizzeti, A. ; Bjørnstad, P. M. ; Blake, T. ; Blanc, F. ; Blouw, J. ; Blusk, S. ; Bocci, V. ; Bondar, A. ; Bondar, N. ; Bonivento, W. ; Borghi, S. ; Borgia, A. ; Borsato, M. ; Bowcock, T. J.V. ; Bowen, E. ; Bozzi, C. ; Brambach, T. ; van den Brand, J. ; Bressieux, J. ; Brett, D. ; Britsch, M. ; Britton, T. ; Brodzicka, J. ; Brook, N. H. ; Brown, H. ; Bursche, A. ; Busetto, G. ; Buytaert, J. ; Cadeddu, S. ; Calabrese, R. / Measurement of the xb(3p) mass and of the relative rate of xb1(1p) and xb2(1p) production. In: Journal of High Energy Physics. 2014 ; pp. 1-16.
@article{ab3f935a60814ba3b0b0c8633f93531f,
title = "Measurement of the xb(3p) mass and of the relative rate of xb1(1p) and xb2(1p) production",
abstract = "{\circledC} CERN 2014. All rights reserved. The production of Xb mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s = 7 and 8TeV and corresponding to an integrated luminosity of 3.0 fb−1. The Xb mesons are identified through their decays to γ(1S) and γ(2S)γ using photons that converted to e+e−pairs in the detector. The relative prompt production rate of Xb1(1P) and Xb2(1P) mesons is measured as a function of the X(1S) transverse momentum in the Xb rapidity range 2.0 < y < 4.5. A precise measurement of the Xb(3P) mass is also performed. Assuming a mass splitting between the Xb1(3P) and the Xb2(3P) states of 10.5 MeV/c2, the measured mass of the Xb1(3P) meson is m(Xb1(3P)) = 10515.7+2.2−3.9(stat)+1.5−2.1(syst)MeV/c2.",
author = "R. Aaij and B. Adeva and M. Adinolfi and A. Affolder 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 J. Anderson and R. Andreassen and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and J. Benton and A. Berezhnoy and R. Bernet and Bettler, {M. O.} and {van Beuzekom}, M. and A. Bien and S. Bifani and T. Bird and A. Bizzeti and Bj{\o}rnstad, {P. M.} and T. Blake and F. Blanc and J. Blouw and S. Blusk and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and M. Borsato and Bowcock, {T. J.V.} and E. Bowen and C. Bozzi and T. Brambach and {van den Brand}, J. and J. Bressieux and D. Brett and M. Britsch and T. Britton and J. Brodzicka and Brook, {N. H.} and H. Brown and A. Bursche and G. Busetto and J. Buytaert and S. Cadeddu and R. Calabrese",
year = "2014",
month = "1",
day = "1",
doi = "10.1007/JHEP10(2014)088",
language = "English",
pages = "1--16",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",

}

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, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brodzicka, J, Brook, NH, Brown, H, Bursche, A, Busetto, G, Buytaert, J, Cadeddu, S & Calabrese, R 2014, 'Measurement of the xb(3p) mass and of the relative rate of xb1(1p) and xb2(1p) production', Journal of High Energy Physics, pp. 1-16. https://doi.org/10.1007/JHEP10(2014)088

Measurement of the xb(3p) mass and of the relative rate of xb1(1p) and xb2(1p) production. / 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, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Anderson, J.; Andreassen, R.; Andreotti, M.; Andrews, J. E.; Appleby, R. B.; Aquines Gutierrez, O.; Archilli, F.; Artamonov, A.; Artuso, M.; Aslanides, E.; Auriemma, G.; Baalouch, M.; Bachmann, S.; Back, J. J.; Badalov, A.; Baesso, C.; Baldini, W.; Barlow, R. J.; 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, M. O.; van Beuzekom, M.; Bien, A.; Bifani, S.; Bird, T.; Bizzeti, A.; Bjørnstad, P. M.; Blake, T.; Blanc, F.; Blouw, J.; Blusk, S.; Bocci, V.; Bondar, A.; Bondar, N.; Bonivento, W.; Borghi, S.; Borgia, A.; Borsato, M.; Bowcock, T. J.V.; Bowen, E.; Bozzi, C.; Brambach, T.; van den Brand, J.; Bressieux, J.; Brett, D.; Britsch, M.; Britton, T.; Brodzicka, J.; Brook, N. H.; Brown, H.; Bursche, A.; Busetto, G.; Buytaert, J.; Cadeddu, S.; Calabrese, R.

In: Journal of High Energy Physics, 01.01.2014, p. 1-16.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of the xb(3p) mass and of the relative rate of xb1(1p) and xb2(1p) production

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

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 - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Aquines Gutierrez, O.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

AU - Berezhnoy, A.

AU - Bernet, R.

AU - Bettler, M. O.

AU - van Beuzekom, M.

AU - Bien, A.

AU - Bifani, S.

AU - Bird, T.

AU - Bizzeti, A.

AU - Bjørnstad, P. M.

AU - Blake, T.

AU - Blanc, F.

AU - Blouw, J.

AU - Blusk, S.

AU - Bocci, V.

AU - Bondar, A.

AU - Bondar, N.

AU - Bonivento, W.

AU - Borghi, S.

AU - Borgia, A.

AU - Borsato, M.

AU - Bowcock, T. J.V.

AU - Bowen, E.

AU - Bozzi, C.

AU - Brambach, T.

AU - van den Brand, J.

AU - Bressieux, J.

AU - Brett, D.

AU - Britsch, M.

AU - Britton, T.

AU - Brodzicka, J.

AU - Brook, N. H.

AU - Brown, H.

AU - Bursche, A.

AU - Busetto, G.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Calabrese, R.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - © CERN 2014. All rights reserved. The production of Xb mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s = 7 and 8TeV and corresponding to an integrated luminosity of 3.0 fb−1. The Xb mesons are identified through their decays to γ(1S) and γ(2S)γ using photons that converted to e+e−pairs in the detector. The relative prompt production rate of Xb1(1P) and Xb2(1P) mesons is measured as a function of the X(1S) transverse momentum in the Xb rapidity range 2.0 < y < 4.5. A precise measurement of the Xb(3P) mass is also performed. Assuming a mass splitting between the Xb1(3P) and the Xb2(3P) states of 10.5 MeV/c2, the measured mass of the Xb1(3P) meson is m(Xb1(3P)) = 10515.7+2.2−3.9(stat)+1.5−2.1(syst)MeV/c2.

AB - © CERN 2014. All rights reserved. The production of Xb mesons in proton-proton collisions is studied using a data sample collected by the LHCb detector, at centre-of-mass energies of √s = 7 and 8TeV and corresponding to an integrated luminosity of 3.0 fb−1. The Xb mesons are identified through their decays to γ(1S) and γ(2S)γ using photons that converted to e+e−pairs in the detector. The relative prompt production rate of Xb1(1P) and Xb2(1P) mesons is measured as a function of the X(1S) transverse momentum in the Xb rapidity range 2.0 < y < 4.5. A precise measurement of the Xb(3P) mass is also performed. Assuming a mass splitting between the Xb1(3P) and the Xb2(3P) states of 10.5 MeV/c2, the measured mass of the Xb1(3P) meson is m(Xb1(3P)) = 10515.7+2.2−3.9(stat)+1.5−2.1(syst)MeV/c2.

U2 - 10.1007/JHEP10(2014)088

DO - 10.1007/JHEP10(2014)088

M3 - Article

SP - 1

EP - 16

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

ER -