&Lambda;<sub>b</sub><sup>0</sup>-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data

G. Kramer; H. Spiesberger

doi:10.1088/1674-1137/42/8/083102

Chinese Physics C> 2018, Vol. 42> Issue(8) : 083102 DOI: 10.1088/1674-1137/42/8/083102

Λ_b⁰-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data

G. Kramer ¹ ,
H. Spiesberger ^2,3

1.
Ⅱ. Institut fü
2.
Institut fü
3.
Centre for Theoretical and Mathematical Physics and Department of Physics, University of Cape Town, Rondebosch 7700, South Africa

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Abstract：
We calculate the next-to-leading-order cross section for the inclusive production of Λ_b baryons in m pp collisions in the general-mass variable-flavor-number scheme. We use realistic evolved non-perturbative fragmentation functions obtained from fits to m B-meson production in e⁺e^- annihilation and compare our results for transverse-momentum and rapidity distributions with recent experimental data from the CMS and the LHCb collaborations at the CERN LHC. We find satisfactory agreement in general, with some indication for the need to modify the available fragmentation functions at larger values of the scale variable.
- heavy flavor production ,
- perturbative QCD ,
- b production

References

[1]	D. Acosta et al (CDF Collaboration), Phys. Rev. D, 71:032001 (2005)[hep-ex/0412071]
[2]	A. Abulencia et al (CDF Collaboration), Phys. Rev. D, 75:012010 (2007)[hep-ex/0612015]
[3]	V. Khachatryan et al (CMS Collaboration), Phys. Rev. Lett., 106:112001 (2011)[arXiv:1101.0131[hep-ex]]
[4]	S. Chatrchyan et al (CMS Collaboration), Phys. Rev. Lett., 106:252001 (2011)[arXiv:1104.2892[hep-ex]]
[5]	S. Chatrchyan et al (CMS Collaboration), Phys. Rev. D, 84:052008 (2011)[arXiv:1106.4048[hep-ex]]
[6]	G. Aad et al (ATLAS Collaboration), JHEP, 1310:042 (2013)[arXiv:1307.0126[hep-ex]]
[7]	R. Aaij et al (LHCb Collaboration), JHEP, 1204:093 (2012)[arXiv:1202.4812[hep-ex]]
[8]	V. Khachatryan et al (CMS Collaboration), Phys. Lett. B, 771:435 (2017)[arXiv:1609.00873[hep-ex]]
[9]	S. Chatrchyan et al (CMS Collaboration), Phys. Lett. B, 714:136 (2012)[arXiv:1205.0594[hep-ex]]
[10]	R. Aaij et al (LHCb Collaboration), Chin. Phys. C, 40:011001 (2016)[arXiv:1509.00292[hep-ex]]
[11]	Y. Amhis et al (HFLAV Collaboration), Eur. Phys. J. C, 77:895 (2017)[arXiv:1612.07233[hep-ex]]
[12]	R. Aaij et al (LHCb Collaboration), Phys. Rev. D, 85:032008 (2012)[arXiv:1111.2357[hep-ex]]
[13]	R. Aaij et al (LHCb Collaboration), JHEP, 1408:143 (2014)[arXiv:1405.6842[hep-ex]]
[14]	B. A. Kniehl, G. Kramer, I. Schienbein, and H. Spiesberger, Phys. Rev. D, 77:014011 (2008)[arXiv:0705.4392[hep-ph]]
[15]	A. Heister et al (ALEPH Collaboration), Phys. Lett. B, 512:30 (2001)[hep-ex/0106051]
[16]	G. Abbiendi et al (OPAL Collaboration), Eur. Phys. J. C, 29:463 (2003)[hep-ex/0210031]
[17]	K. Abe et al (SLD Collaboration), Phys. Rev. Lett., 84:4300 (2000)[hep-ex/9912058]
[18]	K. Abe et al (SLD Collaboration), Phys. Rev. D, 65:092006 (2002); Phys. Rev. D, 66:079905 (2002)[hep-ex/0202031]
[19]	J. Beringer et al (Particle Data Group), Phys. Rev. D, 86:010001 (2012)
[20]	T. Aaltonen et al (CDF Collaboration), Phys. Rev. D, 77:072003 (2008)[arXiv:0801.4375[hep-ex]]
[21]	B. A. Kniehl, G. Kramer, I. Schienbein, and H. Spiesberger, Phys. Rev. D, 71:014018 (2005)[hep-ph/0410289]
[22]	B. A. Kniehl, G. Kramer, I. Schienbein, and H. Spiesberger, Eur. Phys. J. C, 41:199 (2005)[hep-ph/0502194]
[23]	B. A. Kniehl, G. Kramer, I. Schienbein, and H. Spiesberger, Phys. Rev. D, 84:094026 (2011)[arXiv:1109.2472[hep-ph]]
[24]	B. A. Kniehl, G. Kramer, I. Schienbein, and H. Spiesberger, Eur. Phys. J. C, 75:140 (2015)[arXiv:1502.01001[hep-ph]]
[25]	B. A. Kniehl, G. Kramer, I. Schienbein, and H. Spiesberger, Eur. Phys. J. C, 72:2082 (2012)[arXiv:1202.0439[hep-ph]]
[26]	G. Kramer and H. Spiesberger, Phys. Lett. B, 753:542 (2016)[arXiv:1509.07154[hep-ph]]
[27]	R. Aaij et al (LHCb Collaboration), JHEP, 1308:117 (2013)[arXiv:1306.3663[hep-ex]]
[28]	S. Dulat et al, Phys. Rev. D, 93:033006 (2016)[arXiv:1506.07443[hep-ph]]
[29]	J. Abdallah et al (DELPHI Collaboration), Eur. Phys. J. C, 71:1557 (2011)[arXiv:1102.4748[hep-ex]]
[30]	C. Patrignani et al (Particle Data Group), Chin. Phys. C, 40:100001 (2016)
[31]	S. Alioli, P. Nason, C. Oleari, and E. Re, JHEP, 1006:043 (2010)[arXiv:1002.2581[hep-ph]]
[32]	S. Frixione, P. Nason, and G. Ridolfi, JHEP, 0709:126 (2007)[arXiv:0707.3088[hep-ph]]
[33]	T. Sjstrand, S. Mrenna, and P. Z. Skands, JHEP, 0605:026 (2006)[hep-ph/0603175]
[34]	M. Cacciari, M. Greco, and P. Nason, JHEP, 9805:007 (1998)[hep-ph/9803400]
[35]	M. Cacciari, S. Frixione, N. Houdeau, M. L. Mangano, P. Nason, and G. Ridolfi, JHEP, 1210:137 (2012)[arXiv:1205.6344[hep-ph]]

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[19]	Chu Zhili , Zheng Yuming , Wang Fei , Sa Benhao , Lu Zhongdao . Unified Dynamical Simulation of Kaon and Pion Production in Heavy Ion Collisions. Chinese Physics C, 1996, 20(S2): 155-164.
[20]	Zhao Weiqin , Liu Bo . Transverse Energy Dependence of Yield of Charmonium Production in Relativistic Heavy Ion Collisions. Chinese Physics C, 1995, 19(S1): 97-101.

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G. Kramer and H. Spiesberger. Λ_b⁰-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data[J]. Chinese Physics C, 2018, 42(8): 083102. doi: 10.1088/1674-1137/42/8/083102

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沈阳化工大学材料科学与工程学院沈阳 110142

Λ_b⁰-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data

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Λ_b⁰-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data

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Λb0-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data

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Λb0-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data

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Λ_b⁰-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data

Λ_b⁰-baryon production in pp collisions in the general-mass variable-flavour-number scheme, and comparisonwith CMS and LHCb data