LHeC Projesi: e-Halka’nın Yeniden Gözden Geçirilmesi

Year 2018, Volume: 13 Issue: 2, 173 - 178, 30.11.2018

Ümit Kaya Bora Ketenoğlu , Saleh Sultansoy

https://doi.org/10.29233/sdufeffd.468814

Abstract

Büyük Hadron elektron Çarpıştırıcısı (LHeC)’in QCD-Explorer aşaması için bir seçenek
olarak, Büyük Hadron Çarpıştırıcısı (LHC)’ye teğet olacak şekilde 9 km uzunluğunda yeni bir
e-halkası inşası önerilmiştir. 90 MW sinkrotron ışınımı kaybı ile L=1033 cm-2
s
-1
ışınlığa
ulaşılabileceği gösterilmiştir. ERL60LHC’nin temel versiyonu ile örtüşen bu ışınlık değeri,
LHC için (Parton Dağılım Fonksiyonu) PDF’lerin kesin olarak tayini, QCD temellerinin keşfi,
ve özellikle Q2 ≈ 1 GeV2
’de 10-6
’ya kadar küçük x Björken bölgesinin belirlenmesinde yeterli
olacaktır. Ayrıca, ERL60LHC’nin temel ve geliştirilmiş versiyonları üzerine bazı öneriler de
sunulmuştur. Geliştirilmiş ERL60LHC’nin L=1034 cm-2
s
-1 ışınlıklı versiyonu, 160 MW’ın
üzerinde yüksek bir şehir şebeke elektrik gücü gerektirdiği gösterilmiştir. 

Keywords

Ep çarpıştırıcısı, Işınlık, LHeC projesi, Elektron-hadron saçılması

The LHeC Project: e-Ring Revisited

Abstract

Construction of a new 9 km long e-ring tangential to the Large Hadron Collider
(LHC) has been proposed as an option for QCD-Explorer stage of the Large Hadron electron
Collider (LHeC). It is shown that L=1033 cm-2
s
-1
can be achieved with 90 MW synchrotron
radiation losses. This luminosity value, which coincides with basic version of ERL60LHC,
will be sufficient for precise determination of (Parton Distribution Function) PDFs for LHC, as
well as exploration of QCD basics, especially small x Björken region up to 10-6
at Q2 ≈ 1 GeV2
.
In addition, some comments on basic and upgraded versions of ERL60LHC are presented as
well. It is shown that upgraded ERL60LHC version with L=1034 cm-2
s
-1 requires high wall
plug power exceeding 160 MW. 

Keywords

Ep collider, Luminosity, LHeC project, Electron-hadron scattering

References

• LHeC Study Group: J.L. Abelleira Fernandez, C. Adolphsen, A.N. Akay, H. Aksakal et al., “A Large Hadron electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector”, J. Phys. G 39 (2012) 075001; arXiv:1206.2913 [physics.acc-ph], SLAC-R-999, CERN-OPEN-2012-015, LHEC-NOTE-2012-001-GEN.
• S. Sultansoy, “Linac-Ring type Colliders: Energy vs Lumi”, Invited talk at RECFA visit to Turkey, 6-7 October 2017, Istanbul. https://indico.cern.ch/event/658901/
• O. Bruning, “Accelerator Developments and Opportunities”, LHeC Workshop 11-13 September 2017, CERN. https://indico.cern.ch/event/639067/
• G. Guignard, K. Potter adn A. Verdier, “Interaction regions for ep and pp collisions in the LEP tunnel”, contribution to the Particle Accelerator Conf., Vancouver, 1985, and CERN report LEP-TH/85-11, 1985.
• A.N. Akay, H. Karadeniz, and S. Sultansoy, “Review of linac-ring type collider proposals,” Int. J. of Mod. Phys. A vol. 25, 4589-4602, 2010; arXiv:0911.3314 [physics.acc-ph].
• J.B. Dainton, M. Klein, P. Newman, E. Perez and F. Willeke, “Deep inelastic electron-nucleon scattering at the LHC”, JINST 1 (2006) P10001; arXiv:hep-ex/0603016.
• S. Cetin, S. Sultansoy and G. Unel, “Why QCD explorer stage of the LHeC should have high(est) priority”, arXiv:1305.5572 [physics.acc-ph], 2013.
• G. Apollinari, O. Bruening, T. Nakamoto, and L. Rossi, “High luminosity large hadron collider HL- LHC”, arXiv:1705.08830 [physics.acc-ph], 2017.
• F. Zimmermann,"HE-LHC overview, parameters and challenges", in ICFA Beam Dyn., Newslett., vol. 72, p.138, 2017.
• M. Benedikt and F. Zimmermann, “Towards future circular colliders”, Journal of the Korean Physical Society, vol. 69, p. 893, 2016.
• J. Gao, “CEPC-SPPC Accelerator status towards CDR,” Int. J. Mod. Phys. A, vol. 32, no. 2, p. 1746003, 2017.
• Y. Yu, Y. C. Guo, Z. C. Liu, W. J. Fan, Y. Mei, and J. Zhang, “The signatures of doubly charged leptons at LHeC”, J. Phys. G, vol. 45, no. 12, p. 125003, 2018.
• S. Mandal, M. Mitra and N. Sinha, “Probing leptoquarks and heavy neutrinos at the LHeC,” Phys. Rev. D, vol. 98, no. 9, p. 095004, 2018.
• J. Zhang, C. X. Yue, and Z. C. Liu, “Signals of the first generation scalar leptoquarks at LHeC,” Mod. Phys. Lett. A, vol. 33, no. 06, p. 1850039, 2018.
• L. Duarte, G. Zapata, and O. A. Sampayo, “Angular and polarization trails from effective interactions of Majorana neutrinos at the LHeC,” Eur. Phys. J. C, vol. 78, no. 5, p. 352 2018.
• R. Li, X. M. Shen, K. Wang, T. Xu, L. Zhang, and G. Zhu, “Probing anomalous WWγ triple gauge bosons coupling at the LHeC,” Phys. Rev. D, vol. 97, no. 7, 075043, 2018.
• K. He, H. Y. Bi, R. Y. Zhang, X. Z. Li, and W. G. Ma, “P-wave excited Bc(*) meson photoproduction at the LHeC,” J. Phys. G, vol. 45, no. 5, p. 055005, 2018.
• H. Sun and X. Wang, “Exploring the anomalous top-Higgs FCNC couplings at the electron proton colliders,” Eur. Phys. J. C, vol. 78, no. 4, p. 281, 2018.