Measurement of χc1and χc2production with √s = 7 TeV pp collisions at ATLAS

The ATLAS Collaboration

doi:10.1007/JHEP07(2014)154

Measurement of χ_c1and χ_c2production with √s = 7 TeV pp collisions at ATLAS

The ATLAS Collaboration

研究成果: Article › 査読

40 被引用数 (Scopus)

抄録

The prompt and non-prompt production cross-sections for the χ_c1and χ_c2charmonium states are measured in pp collisions at √s = 7TeV with the ATLAS detector at the LHC using 4.5 fb⁻¹of integrated luminosity. The χ_cstates are reconstructed through the radiative decay χ_c→ J/ψγ (with J/ψ → μ⁺μ⁻) where photons are reconstructed from γ → e+e− conversions. The production rate of the χ_c2state relative to the χ_c1state is measured for prompt and non-prompt χ_cas a function of J/ψ transverse momentum. The prompt χ_ccross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χ_cdecays. The fractions of χ_c1and χ_c2produced in b-hadron decays are also measured.

本文言語	English
論文番号	154
ジャーナル	Journal of High Energy Physics
巻	2014
号	7
DOI	https://doi.org/10.1007/JHEP07(2014)154
出版ステータス	Published - 2014 7月 30

ASJC Scopus subject areas

核物理学および高エネルギー物理学

文献へのアクセス

10.1007/JHEP07(2014)154

他のファイルとリンク

引用スタイル

@article{3fa7b1e47fa04a648846296a716a7473,

title = "Measurement of χc1and χc2production with √s = 7 TeV pp collisions at ATLAS",

abstract = "The prompt and non-prompt production cross-sections for the χc1and χc2charmonium states are measured in pp collisions at √s = 7TeV with the ATLAS detector at the LHC using 4.5 fb−1of integrated luminosity. The χcstates are reconstructed through the radiative decay χc→ J/ψγ (with J/ψ → μ+μ−) where photons are reconstructed from γ → e+e− conversions. The production rate of the χc2state relative to the χc1state is measured for prompt and non-prompt χcas a function of J/ψ transverse momentum. The prompt χccross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χcdecays. The fractions of χc1and χc2produced in b-hadron decays are also measured.",

keywords = "Hadron-hadron scattering",

author = "{The ATLAS Collaboration} and G. Aad and T. Abajyan and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and Abouzeid, {O. S.} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, {B. S.} and L. Adamczyk and Adams, {D. L.} and Addy, {T. N.} and J. Adelman and S. Adomeit and T. Adye and S. Aefsky and T. Agatonovic-Jovin and Aguilar-Saavedra, {J. A.} and M. Agustoni and Ahlen, {S. P.} and A. Ahmad and F. Ahmadov and G. Aielli and {\AA}kesson, {T. P.A.} and G. Akimoto and Akimov, {A. V.} and Alam, {M. A.} and J. Albert and S. Albrand and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and F. Alessandria and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and M. Aliev and G. Alimonti and L. Alio and J. Alison and N. Kimura and T. Mitani and K. Yorita",

year = "2014",

month = jul,

day = "30",

doi = "10.1007/JHEP07(2014)154",

language = "English",

volume = "2014",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "7",

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TY - JOUR

T1 - Measurement of χc1and χc2production with √s = 7 TeV pp collisions at ATLAS

AU - The ATLAS Collaboration

AU - Aad, G.

AU - Abajyan, T.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Abolins, M.

AU - Abouzeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Aefsky, S.

AU - Agatonovic-Jovin, T.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Ahlen, S. P.

AU - Ahmad, A.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alam, M. A.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alessandria, F.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Aliev, M.

AU - Alimonti, G.

AU - Alio, L.

AU - Alison, J.

AU - Kimura, N.

AU - Mitani, T.

AU - Yorita, K.

PY - 2014/7/30

Y1 - 2014/7/30

N2 - The prompt and non-prompt production cross-sections for the χc1and χc2charmonium states are measured in pp collisions at √s = 7TeV with the ATLAS detector at the LHC using 4.5 fb−1of integrated luminosity. The χcstates are reconstructed through the radiative decay χc→ J/ψγ (with J/ψ → μ+μ−) where photons are reconstructed from γ → e+e− conversions. The production rate of the χc2state relative to the χc1state is measured for prompt and non-prompt χcas a function of J/ψ transverse momentum. The prompt χccross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χcdecays. The fractions of χc1and χc2produced in b-hadron decays are also measured.

AB - The prompt and non-prompt production cross-sections for the χc1and χc2charmonium states are measured in pp collisions at √s = 7TeV with the ATLAS detector at the LHC using 4.5 fb−1of integrated luminosity. The χcstates are reconstructed through the radiative decay χc→ J/ψγ (with J/ψ → μ+μ−) where photons are reconstructed from γ → e+e− conversions. The production rate of the χc2state relative to the χc1state is measured for prompt and non-prompt χcas a function of J/ψ transverse momentum. The prompt χccross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χcdecays. The fractions of χc1and χc2produced in b-hadron decays are also measured.

KW - Hadron-hadron scattering

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UR - http://www.scopus.com/inward/citedby.url?scp=84925745749&partnerID=8YFLogxK

U2 - 10.1007/JHEP07(2014)154

DO - 10.1007/JHEP07(2014)154

M3 - Article

AN - SCOPUS:84925745749

SN - 1126-6708

VL - 2014

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 154

ER -