Hadroproduction of J/ψ and Γ in association with a heavy-quark pair

被引：115

作者：

Artoisenet, P.

Lansberg, J. P.

Maltoni, F.

机构：

[1] Catholic Univ Louvain, Ctr Particle Phys & Phenomenol, B-1348 Louvain, Belgium

[2] Ecole Polytech, CNRS, CPHT, F-91128 Palaiseau, France

来源：

PHYSICS LETTERS B | 2007年 / 653卷 / 01期

关键词：

quarkonium production;

D O I：

10.1016/j.physletb.2007.04.031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the cross sections for the direct hadroproduction of J/psi and T associated with a heavy-quark pair of the same flavour at leading order in alpha(S) and v in NRQCD. These processes provide an interesting signature that could be studied at the Tevatron and the LHC and also constitute a gauge-invariant subset of the NLO corrections to the inclusive hadroproduction of J/psi and T. We find that the fragmentation approximation commonly used to evaluate the contribution of these processes to the inclusive quarkonium production sizeably underestimates the exact calculation in the kinematical region accessible at the Tevatron. Both J/psi and T are predicted to be unpolarised, independently of their transverse momentum. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：60 / 66

页数：7

共 38 条

[1] Production of J/psi mesons from chi(c) meson decays in p(p)over-bar collisions at root s=1.8 TeV [J].

Abe, F ;

Akimoto, H ;

Akopian, A ;

Albrow, MG ;

Amendolia, SR ;

Amidei, D ;

Antos, J ;

Aota, S ;

Apollinari, G ;

Asakawa, T ;

Ashmanskas, W ;

Atac, M ;

Azfar, F ;

AzziBacchetta, P ;

Bacchetta, N ;

Badgett, W ;

Bagdasarov, S ;

Bailey, MW ;

Bao, J ;

deBarbaro, P ;

BarbaroGaltieri, A ;

Barnes, VE ;

Barnett, BA ;

Barone, M ;

Barzi, E ;

Bauer, G ;

Baumann, T ;

Bedeschi, F ;

Behrends, S ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Benjamin, D ;

Benlloch, J ;

Bensinger, J ;

Benton, D ;

Beretvas, A ;

Berge, JP ;

Berryhill, J ;

Bertolucci, S ;

Bevensee, B ;

Bhatti, A ;

Biery, K ;

Binkley, M ;

Bisello, D ;

Blair, RE ;

Blocker, C ;

Bodek, A ;

Bokhari, W ;

Bolognesi, V .

PHYSICAL REVIEW LETTERS, 1997, 79 (04) :578-583

[2] J/psi and psi(2S) production in p(p)over-bar collisions at root s=1.8 TeV [J].

Abe, F ;

Akimoto, H ;

Akopian, A ;

Albrow, MG ;

Amendolia, SR ;

Amidei, D ;

Antos, J ;

Aota, S ;

Apollinari, G ;

Asakawa, T ;

Ashmanskas, W ;

Atac, M ;

Azfar, F ;

AzziBacchetta, P ;

Bacchetta, N ;

Badgett, W ;

Bagdasarov, S ;

Bailey, MW ;

Bao, J ;

deBarbaro, P ;

BarbaroGaltieri, A ;

Barnes, VE ;

Barnett, BA ;

Barone, M ;

Barzi, E ;

Bauer, G ;

Baumann, T ;

Bedeschi, F ;

Behrends, S ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Benjamin, D ;

Benlloch, J ;

Bensinger, J ;

Benton, D ;

Beretvas, A ;

Berge, JP ;

Berryhill, J ;

Bertolucci, S ;

Bevensee, B ;

Bhatti, A ;

Biery, K ;

Binkley, M ;

Bisello, D ;

Blair, RE ;

Blocker, C ;

Bodek, A ;

Bokhari, W ;

Bolognesi, V .

PHYSICAL REVIEW LETTERS, 1997, 79 (04) :572-577

[3]

Abe K, 2002, PHYS REV LETT, V89, DOI [10.1103/PhysRevLett.89.122001, 10.1103/PhysRevLett.89.142001]

[4] Measurement of J/ψ and ψ(2S) polarization in p(p)over-bar collisions at √s=1.8 TeV [J].

Affolder, T ;

Akimoto, H ;

Akopian, A ;

Albrow, MG ;

Amaral, P ;

Amendolia, SR ;

Amidei, D ;

Anikeev, K ;

Antos, J ;

Apollinari, G ;

Arisawa, T ;

Asakawa, T ;

Ashmanskas, W ;

Atac, M ;

Azfar, F ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Bailey, MW ;

Bailey, S ;

de Barbaro, P ;

Barbaro-Galtieri, A ;

Barnes, VE ;

Barnett, BA ;

Barone, M ;

Bauer, G ;

Bedeschi, F ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Benjamin, D ;

Bensinger, J ;

Beretvas, A ;

Berge, JP ;

Berryhill, J ;

Bevensee, B ;

Bhatti, A ;

Binkley, M ;

Bisello, D ;

Blair, RE ;

Blocker, C ;

Bloom, K ;

Blumenfeld, B ;

Blusk, SR ;

Bocci, A ;

Bodek, A ;

Bokhari, W ;

Bolla, G ;

Bonushkin, Y ;

Bortoletto, D ;

Boudreau, J .

PHYSICAL REVIEW LETTERS, 2000, 85 (14) :2886-2891

[5] HADRONIC PRODUCTION OF J-PSI AND UPSILON - TRANSVERSE-MOMENTUM DISTRIBUTIONS [J].

BAIER, R ;

RUCKL, R .

PHYSICS LETTERS B, 1981, 102 (05) :364-370

[6] HADRONIC COLLISIONS - A QUARKONIUM FACTORY [J].

BAIER, R ;

RUCKL, R .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1983, 19 (03) :251-266

[7] Associated Υ+b+(b)over-bar production at the Fermilab Tevatron and CERN LHC [J].

Baranov, S. P. .

PHYSICAL REVIEW D, 2006, 74 (07)

[8] Topics in associated J/ψ+c+(c)over-bar production at modern colliders -: art. no. 074021 [J].

Baranov, SP .

PHYSICAL REVIEW D, 2006, 73 (07)

[9] Hadronic production of S- and P-wave states of (b)over-bar-c-quarkonium [J].

Berezhnoy, AV ;

Kiselev, VV ;

Likhoded, AK .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1996, 356 (01) :79-87

[10] INELASTIC PHOTOPRODUCTION OF J-PSI AND UPSILON BY GLUONS [J].

BERGER, EL ;

JONES, D .

PHYSICAL REVIEW D, 1981, 23 (07) :1521-1530

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