&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

Abstract
HTML
Reference
Related

PDF

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]]

[1]	Zhan Sun , Hong-Fei Zhang . Reconciling charmonium production and polarization data in the midrapidity region at hadron colliders within the nonrelativistic QCD framework. Chinese Physics C, 2018, 42(4): 043104. doi: 10.1088/1674-1137/42/4/043104
[2]	Yueling Yang , Yupei Guo , Junfeng Sun , Na Wang , Qin Chang , Gongru Lu . B_u → ψM decays and S-D wave mixing effects. Chinese Physics C, 2018, 42(11): 113102. doi: 10.1088/1674-1137/42/11/113102
[3]	Shi Bu , Xing-Gang Wu , Jian-Ming Shen , Jun Zeng . Properties of the free energy density using the principle ofmaximum conformality. Chinese Physics C, 2018, 42(8): 083105. doi: 10.1088/1674-1137/42/8/083105
[4]	Han Guo , Zi-Ping Zhang . A method for measuring D^* electromagnetic form factors in e⁺ e^- annihilation. Chinese Physics C, 2017, 41(9): 093001. doi: 10.1088/1674-1137/41/9/093001
[5]	Feng-Lan Shao , Jun Song , Rui-Qin Wang , Mao-Sheng Zhang . Energy dependence of resonance production in relativistic heavy ion collisions. Chinese Physics C, 2017, 41(1): 014101. doi: 10.1088/1674-1137/41/1/014101
[6]	ZHANG Dong-Hong , XIE Wen-Jie , SU Jun , ZHANG Feng-Shou . Production cross section of neutron-rich calcium isotopes in heavy ion collisions. Chinese Physics C, 2015, 39(4): 044103. doi: 10.1088/1674-1137/39/4/044103
[7]	JIA Lian-Bao , GUO Xing-Dao , JIN Hong-Ying , ZHAO Ming-Gang , LI Xue-Qian . Search for supersymmetric mesinos near production thresholdin terms of super flavor symmetry. Chinese Physics C, 2015, 39(8): 083102. doi: 10.1088/1674-1137/39/8/083102
[8]	FENG Xiu-Mei , ZHANG Ben-Wei . Drell-Yan dilepton production in relativistic heavy-ion collisions at RHIC. Chinese Physics C, 2011, 35(9): 829-832. doi: 10.1088/1674-1137/35/9/008
[9]	FU Yong-Ping , LI Yun-De . Large transverse momentum dilepton production in heavy ion collisions with two-photon processes. Chinese Physics C, 2011, 35(2): 109-112. doi: 10.1088/1674-1137/35/2/001
[10]	JIN Dan , YANG Ya-Dong . Radiative decays J/ψ → η^(')γ in perturbative QCD. Chinese Physics C, 2011, 35(8): 703-707. doi: 10.1088/1674-1137/35/8/001
[11]	ZHANG Song , CHEN Jin-Hui , MA Yu-Gang , XU Zhang-Bu , CAI Xiang-Zhou , MA Guo-Liang , ZHONG Chen . Hypertriton and light nuclei production at Λ-production subthreshold energy in heavy-ion collisions. Chinese Physics C, 2011, 35(8): 741-746. doi: 10.1088/1674-1137/35/8/008
[12]	FU Yong-Ping , LI Yun-De . Photon production in relativistic heavy ion collisions with equilibrium and non-equilibrium QGP. Chinese Physics C, 2010, 34(2): 186-191. doi: 10.1088/1674-1137/34/2/006
[13]	Eduard Avetisyan (on behalf of HERMES collaboration) . Exclusive meson production at HERMES. Chinese Physics C, 2010, 34(9): 1472-1475. doi: 10.1088/1674-1137/34/9/075
[14]	P. G. Ortega , D. R. Entem , F. Fernandez . ΛΛ production in pp collisions. Chinese Physics C, 2010, 34(9): 1462-1464. doi: 10.1088/1674-1137/34/9/072
[15]	LU Juan , ZHOU Li-Juan . Vector meson J/ψ, φ electro-production in QCD. Chinese Physics C, 2010, 34(4): 465-471. doi: 10.1088/1674-1137/34/4/009
[16]	ZHANG Jian-Rong , HUANG Ming-Qiu . Heavy flavor baryon spectra via QCD sum rules. Chinese Physics C, 2009, 33(12): 1385-1388. doi: 10.1088/1674-1137/33/12/061
[17]	WANG Ya-Ping , ZHOU Dai-Mei , HUANG Rui-Dian , CAI Xu . Collision geometry and particle production in high energy heavy ion collision experiments. Chinese Physics C, 2008, 32(4): 308-328. doi: 10.1088/1674-1137/32/4/014
[18]	SU You-Wu , WANG Gui-Ling , LI Wu-Yuan , LI Zong-Qiang , LI Gui-Sheng , ZHENG Hua-Zhi . Neutron production at the heavy ion research facility in Lanzhou. Chinese Physics C, 2008, 32(5): 348-351. doi: 10.1088/1674-1137/32/5/004
[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.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2018-03-29

Article Metric

Article Views(1610)
PDF Downloads(23)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
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

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

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

HTML

目录

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

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

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

HTML

目录

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