Abstract
The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated.
| Original language | English |
|---|---|
| Article number | 154 |
| Journal | Journal of High Energy Physics |
| Volume | 2013 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 29 2013 |
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Keywords
- Hadron-Hadron Scattering
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Measurement of the X(3872) production cross section via decays to J/ψπ+π− in pp collisions at √s = 7 TeV . / Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Aguilo, E.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Knünz, V.; Krammer, M.; Krätschmer, I.; Liko, D.; Mikulec, I.; Pernicka, M.; Rabady, D.; Rahbaran, B.; Rohringer, C.; Rohringer, H.; Schöfbeck, R.; Strauss, J.; Taurok, A.; Waltenberger, W.; Wulz, C. E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Bansal, M.; Bansal, S.; Cornelis, T.; De Wolf, E. A.; Janssen, X.; Luyckx, S.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.; Radi, A.; The CMS collaboration.
In: Journal of High Energy Physics, Vol. 2013, No. 4, 154, 29.04.2013.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Measurement of the X(3872) production cross section via decays to J/ψπ+π− in pp collisions at √s = 7 TeV
AU - Chatrchyan, S.
AU - Khachatryan, V.
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Aguilo, E.
AU - Bergauer, T.
AU - Dragicevic, M.
AU - Erö, J.
AU - Fabjan, C.
AU - Friedl, M.
AU - Frühwirth, R.
AU - Ghete, V. M.
AU - Hörmann, N.
AU - Hrubec, J.
AU - Jeitler, M.
AU - Kiesenhofer, W.
AU - Knünz, V.
AU - Krammer, M.
AU - Krätschmer, I.
AU - Liko, D.
AU - Mikulec, I.
AU - Pernicka, M.
AU - Rabady, D.
AU - Rahbaran, B.
AU - Rohringer, C.
AU - Rohringer, H.
AU - Schöfbeck, R.
AU - Strauss, J.
AU - Taurok, A.
AU - Waltenberger, W.
AU - Wulz, C. E.
AU - Mossolov, V.
AU - Shumeiko, N.
AU - Suarez Gonzalez, J.
AU - Bansal, M.
AU - Bansal, S.
AU - Cornelis, T.
AU - De Wolf, E. A.
AU - Janssen, X.
AU - Luyckx, S.
AU - Mucibello, L.
AU - Ochesanu, S.
AU - Roland, B.
AU - Rougny, R.
AU - Selvaggi, M.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Van Remortel, N.
AU - Radi, A.
AU - The CMS collaboration
PY - 2013/4/29
Y1 - 2013/4/29
N2 - The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated.
AB - The production of the X(3872) is studied in pp collisions at √s = 7TeV, using decays to J/ψπ+π−, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < pT < 50GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ (2S) cross sections times their branching fractions into J/ψπ+π− is measured as a function of pT. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of pT is extracted. The π+π− mass spectrum of the J/ψπ+π− system in the X(3872) decays is also investigated.
KW - Hadron-Hadron Scattering
UR - http://www.scopus.com/inward/record.url?scp=84935906202&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84935906202&partnerID=8YFLogxK
U2 - 10.1007/JHEP04(2013)154
DO - 10.1007/JHEP04(2013)154
M3 - Article
VL - 2013
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 4
M1 - 154
ER -