Inclusive D*-meson production in ep scattering at low Q 2 in the GM-VFN scheme at NLO

被引：4

作者：

Kramer, G. ^{[2
]}

Spiesberger, H. ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[2] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany

来源：

PHYSICS LETTERS B | 2009年 / 679卷 / 03期

关键词：

TO-LEADING ORDER; D-ASTERISK(+/-) MESONS; INELASTIC-SCATTERING; CROSS-SECTIONS; COLLISIONS; PHOTOPRODUCTION; QUARKS; HERA; HADROPRODUCTION; APPROXIMATION;

D O I：

10.1016/j.physletb.2009.07.034

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have calculated the next-to-leading order cross sections for the inclusive production of D*-mesons in ep collisions at HERA for finite, although very small Q (2). In this Q (2)-range, the same approximations as for photoproduction can be used. Our calculation is performed in the general-mass variable-flavour-number scheme. In this approach, large logarithms of the charm transverse momentum are resummed and finite terms depending on m(2)/p(T)(2) are kept in the hard scattering cross sections. The theoretical results are compared with recent data front the ZEUS Collaboration at HERA. On average, we find good agreement. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：223 / 227

页数：5

共 38 条

[1] Measurement of f(c→D*+,X), f(b→D*+,X) and Γc(c)over-bar/Γhad using D*± mesons
Ackerstaff, K
Alexander, G
Allison, J
Altekamp, N
Anderson, KJ
Anderson, S
Arcelli, S
Asai, S
Axen, D
Azuelos, G
Ball, AH
Barberio, E
Barillari, T
Barlow, RJ
Bartoldus, R
Batley, JR
Baumann, S
Bechtluft, J
Beeston, C
Behnke, T
Bell, AN
Bell, KW
Bella, G
Bentvelsen, S
Bethke, S
Biebel, O
Biguzzi, A
Bird, SD
Blobel, V
Bloodworth, IJ
Bloomer, JE
Bobinski, M
Bock, P
Bonacorsi, D
Boutemeur, M
Bouwens, BT
Braibant, S
Brigliadori, L
Brown, RM
Burckhart, HJ
Burgard, C
Burgin, R
Capiluppi, P
Carnegie, RK
Carter, AA
Carter, JR
Chang, CY
Charlton, DG
Chrisman, D
Clarke, PEL
[J]. EUROPEAN PHYSICAL JOURNAL C, 1998, 1 (3-4): : 439 - 459
[2] Inclusive D*± meson and associated dijet production in deep-inelastic scattering at HERA
Aktas, A.
Andreev, V.
Anthonis, T.
Antunovic, B.
Aplin, S.
Asmone, A.
Astvatsatourov, A.
Babaev, A.
Backovic, S.
Baghdasaryan, A.
Baranov, P.
Barrelet, E.
Bartel, W.
Baudrand, S.
Beckingham, M.
Begzsuren, K.
Behnke, O.
Behrendt, O.
Belousov, A.
Berger, N.
Bizot, J. C.
Boenig, M.-O.
Boudry, V.
Bozovic-Jelisavcic, I.
Bracinik, J.
Brandt, G.
Brinkmann, M.
Brisson, V.
Bruncko, D.
Buesser, F. W.
Bunyatyan, A.
Buschhorn, G.
Bystritskaya, L.
Campbell, A. J.
Avila, K. B. Cantun
Cassol-Brunner, F.
Cerny, K.
Cerny, V.
Chekelian, V.
Cholewa, A.
Contreras, J. G.
Coughlan, J. A.
Cozzika, G.
Cvach, J.
Dainton, J. B.
Daum, K.
de Boer, Y.
Delcourt, B.
Del Degan, M.
De Roeck, A.
[J]. EUROPEAN PHYSICAL JOURNAL C, 2007, 51 (02): : 271 - 287
[3] Alexander G, 1996, Z PHYS C PART FIELDS, V72, P1, DOI 10.1007/BF02909127
[4] ASYMPTOTIC FREEDOM IN PARTON LANGUAGE
ALTARELLI, G
PARISI, G
[J]. NUCLEAR PHYSICS B, 1977, 126 (02) : 298 - 318
[5] Review of particle physics
Amsler, C.
Doser, M.
Antonelli, M.
Asner, D. M.
Babu, K. S.
Baer, H.
Band, H. R.
Barnett, R. M.
Bergren, E.
Beringer, J.
Bernardi, G.
Bertl, W.
Bichsel, H.
Biebel, O.
Bloch, P.
Blucher, E.
Blusk, S.
Cahn, R. N.
Carena, M.
Caso, C.
Cecccci, A.
Chakraborty, D.
Chen, M. -C.
Chivukula, R. S.
Cowan, G.
Dahl, O.
D'Ambrosio, G.
Damour, T.
de Gouvea, A.
DeGrand, T.
Dobrescu, B.
Drees, M.
Edwards, D. A.
Eidelman, S.
Elvira, V. D.
Erler, J.
Ezhela, V. V.
Feng, J. L.
Fetscher, W.
Fields, B. D.
Foster, B.
Gaisser, T. K.
Garren, L.
Gerber, H. -J.
Gerbier, G.
Gherghetta, T.
Giudice, G. F.
Goodman, M.
Grab, C.
Gritsan, A. V.
[J]. PHYSICS LETTERS B, 2008, 667 (1-5) : 1 - +
[6] [Anonymous], 1972, SOV J NUCL PHYS
[7] Charm meson spectra in e+e- annihilation at 10.5 GeV center of mass energy -: art. no. 112001
Artuso, M
Boulahouache, C
Blusk, S
Butt, J
Dambasuren, E
Dorjkhaidav, O
Haynes, J
Horwitz, N
Menaa, N
Moneti, GC
Mountain, R
Muramatsu, H
Nandakumar, R
Redjimi, R
Sia, R
Skwarnicki, T
Stone, S
Wang, JC
Zhang, K
Mahmood, AH
Csorna, SE
Bonvicini, G
Cinabro, D
Dubrovin, M
Bornheim, A
Lipeles, E
Pappas, SP
Shapiro, A
Weinstein, AJ
Briere, RA
Chen, GP
Ferguson, T
Tatishvili, G
Vogel, H
Watkins, ME
Adam, NE
Alexander, JP
Berkelman, K
Boisvert, V
Cassel, DG
Duboscq, JE
Ecklund, KM
Ehrlich, R
Galik, RS
Gibbons, L
Gittelman, B
Gray, SW
Hartill, DL
Heltsley, BK
Hsu, L
[J]. PHYSICAL REVIEW D, 2004, 70 (11): : 112001 - 1
[8] Study of charm production in Z decays
Barate, R
Decamp, D
Ghez, P
Goy, C
Lees, JP
Merle, E
Minard, MN
Pietrzyk, B
Alemany, R
Casado, MP
Chmeissani, M
Crespo, JM
Fernandez, E
Fernandez-Bosman, M
Garrido, L
Graugès, E
Juste, A
Martinez, M
Merino, G
Miquel, R
Mir, LM
Pacheco, A
Park, IC
Riu, I
Colaleo, A
Creanza, D
de Palma, M
Iaselli, G
Maggi, G
Maggi, M
Nuzzo, S
Ranieri, A
Raso, G
Ruggieri, F
Selvaggi, G
Silvestris, L
Tempesta, P
Tricomi, A
Zito, G
Huang, X
Lin, J
Ouyang, Q
Wang, T
Xie, Y
Xu, R
Xue, S
Zhang, J
Zhang, L
Zhao, W
Abbaneo, D
[J]. EUROPEAN PHYSICAL JOURNAL C, 2000, 16 (04): : 597 - 611
[9] Coherent description of D*± production in e+e- and low-Q2 ep collisions
Binnewies, J
Kniehl, BA
Kramer, G
[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 76 (04): : 677 - 688
[10] Binnewies J, 1998, PHYS REV D, V58, DOI 10.1103/PhysRevD.58.014014

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