Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 431-440 |
| Number of pages | 10 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| DOIs | |
| Publication status | Published - 5 Dec 2012 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
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Measurement of the ratio of prompt χ <inf>c</inf> to J/ψ production in pp collisions at √s=7 TeV. / Aaij, R.; Abellan Beteta, C.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amhis, Y.; Anderson, J.; Appleby, R. B.; Aquines Gutierrez, O.; Archilli, F.; Arrabito, L.; Artamonov, A.; Artuso, M.; Aslanides, E.; Auriemma, G.; Bachmann, S.; Back, J. J.; Balagura, V.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Bates, A.; Bauer, C.; Bauer, Th; Bay, A.; Bediaga, I.; Belogurov, S.; Belous, K.; Belyaev, I.; Ben-Haim, E.; Benayoun, M.; Bencivenni, G.; Benson, S.; Benton, J.; Bernet, R.; Bettler, M. O.; van Beuzekom, M.; Bien, A.; Bifani, S.; Bird, T.; Bizzeti, A.; Bjørnstad, P. M.; Blake, T.; Blanc, F.; Blanks, C.; Blouw, J.; Blusk, S.; Bobrov, A.; Bocci, V.; Bondar, A.; Bondar, N.; Bonivento, W.; Borghi, S.; Borgia, A.; Bowcock, T. J.V.; Bozzi, C.; Brambach, T.; van den Brand, J.; Bressieux, J.; Brett, D.; Britsch, M.; Britton, T.; Brook, N. H.; Brown, H.; de Bruyn, K.; Büchler-Germann, A.; Burducea, I.; Bursche, A.; Buytaert, J.; Cadeddu, S.; Callot, O.; Calvi, M.; Calvo Gomez, M.; Camboni, A.; Campana, P.; Carbone, A.; Carboni, G.; Cardinale, R.; Cardini, A.; Carson, L.; Carvalho Akiba, K.; Casse, G.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 05.12.2012, p. 431-440.Research output: Contribution to journal › Article
TY - JOUR
T1 - Measurement of the ratio of prompt χ c to J/ψ production in pp collisions at √s=7 TeV
AU - Aaij, R.
AU - Abellan Beteta, C.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Adrover, C.
AU - Affolder, A.
AU - Ajaltouni, Z.
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 - Amhis, Y.
AU - Anderson, J.
AU - Appleby, R. B.
AU - Aquines Gutierrez, O.
AU - Archilli, F.
AU - Arrabito, L.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Auriemma, G.
AU - Bachmann, S.
AU - Back, J. J.
AU - Balagura, V.
AU - Baldini, W.
AU - Barlow, R. J.
AU - Barschel, C.
AU - Barsuk, S.
AU - Barter, W.
AU - Bates, A.
AU - Bauer, C.
AU - Bauer, Th
AU - Bay, A.
AU - Bediaga, I.
AU - Belogurov, S.
AU - Belous, K.
AU - Belyaev, I.
AU - Ben-Haim, E.
AU - Benayoun, M.
AU - Bencivenni, G.
AU - Benson, S.
AU - Benton, J.
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 - Blanks, C.
AU - Blouw, J.
AU - Blusk, S.
AU - Bobrov, A.
AU - Bocci, V.
AU - Bondar, A.
AU - Bondar, N.
AU - Bonivento, W.
AU - Borghi, S.
AU - Borgia, A.
AU - Bowcock, T. J.V.
AU - Bozzi, C.
AU - Brambach, T.
AU - van den Brand, J.
AU - Bressieux, J.
AU - Brett, D.
AU - Britsch, M.
AU - Britton, T.
AU - Brook, N. H.
AU - Brown, H.
AU - de Bruyn, K.
AU - Büchler-Germann, A.
AU - Burducea, I.
AU - Bursche, A.
AU - Buytaert, J.
AU - Cadeddu, S.
AU - Callot, O.
AU - Calvi, M.
AU - Calvo Gomez, M.
AU - Camboni, A.
AU - Campana, P.
AU - Carbone, A.
AU - Carboni, G.
AU - Cardinale, R.
AU - Cardini, A.
AU - Carson, L.
AU - Carvalho Akiba, K.
AU - Casse, G.
PY - 2012/12/5
Y1 - 2012/12/5
N2 - The prompt production of charmonium χ c and J/ψ states is studied in proton-proton collisions at a centre-of-mass energy of s=7 TeV at the Large Hadron Collider. The χ c and J/ψ mesons are identified through their decays χ c→J/ψγ and J/ψ→μ +μ - using 36 pb -1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J/ψ, σ(χ c→J/ψγ)/σ(J/ψ), is determined as a function of the J/ψ transverse momentum in the range 2<pTJ/ψ<15 GeV/c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low pTJ/ψ region. © 2012 CERN.
AB - The prompt production of charmonium χ c and J/ψ states is studied in proton-proton collisions at a centre-of-mass energy of s=7 TeV at the Large Hadron Collider. The χ c and J/ψ mesons are identified through their decays χ c→J/ψγ and J/ψ→μ +μ - using 36 pb -1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J/ψ, σ(χ c→J/ψγ)/σ(J/ψ), is determined as a function of the J/ψ transverse momentum in the range 2<pTJ/ψ<15 GeV/c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low pTJ/ψ region. © 2012 CERN.
U2 - 10.1016/j.physletb.2012.10.068
DO - 10.1016/j.physletb.2012.10.068
M3 - Article
SP - 431
EP - 440
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -