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Critical fields of Nb 3 Sn prepared for superconducting cavities

https://doi.org/10.1088/1361-6668/ab119e

Keckert, S. ; Junginger, T. ; Buck, T. ; Hall, D. ; Kolb, P. ; Kugeler, O. ; Laxdal, R. ; Liepe, M. ; Posen, S. ; Prokscha, T. ; et al ( May 2019 , Superconductor Science and Technology)

Abstract
Nb₃Sn is currently the most promising material other than niobium for future superconducting radiofrequency cavities. Critical fields above 120 mT in pulsed operation and about 80 mT in CW have been achieved in cavity tests. This is large compared to the lower critical field as derived from the London penetration depth, extracted from low field surface impedance measurements. In this paper direct measurements of the London penetration depth from which the lower critical field and the superheating field are derived are presented. The field of first vortex penetration is measured under DC and RF fields. The combined results confirm that Nb₃Sn cavities are indeed operated in a metastable state above the lower critical field but are currently limited to a critical field well below the superheating field.

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Measurement of the azimuthal ordering of charged hadrons with the ATLAS detector

https://doi.org/10.1103/PhysRevD.86.052005

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; AbouZeid, O. S. ; Abramowicz, H. ; et al ( September 2012 , Physical Review D)
Search for Pair Production of a New b′ Quark that Decays into a Z Boson and a Bottom Quark with the ATLAS Detector

https://doi.org/10.1103/PhysRevLett.109.071801

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdel Khalek, S. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; AbouZeid, O. S. ; et al ( August 2012 , Physical Review Letters)
Search for tb Resonances in Proton-Proton Collisions at s=7 TeV with the ATLAS Detector

https://doi.org/10.1103/PhysRevLett.109.081801

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdel Khalek, S. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; AbouZeid, O. S. ; et al ( August 2012 , Physical Review Letters)
Search for pair-produced heavy quarks decaying to Wq in the two-lepton channel at (s)=7 TeV with the ATLAS detector

https://doi.org/10.1103/PhysRevD.86.012007

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; AbouZeid, O. S. ; Abramowicz, H. ; et al ( July 2012 , Physical Review D)
Determination of the Strange-Quark Density of the Proton from ATLAS Measurements of the W→ℓν and Z→ℓℓ Cross Sections

https://doi.org/10.1103/PhysRevLett.109.012001

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; AbouZeid, O. S. ; Abramowicz, H. ; et al ( July 2012 , Physical Review Letters)
Measurement of inclusive jet and dijet production in pp collisions at s=7 TeV using the ATLAS detector

https://doi.org/10.1103/PhysRevD.86.014022

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; Abramowicz, H. ; Abreu, H. ; et al ( July 2012 , Physical Review D)
Search for Down-Type Fourth Generation Quarks with the ATLAS Detector in Events with One Lepton and Hadronically Decaying W Bosons

https://doi.org/10.1103/PhysRevLett.109.032001

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; AbouZeid, O. S. ; Abramowicz, H. ; et al ( July 2012 , Physical Review Letters)
Search for supersymmetry in pp collisions at s=7 TeV in final states with missing transverse momentum and b -jets with the ATLAS detector

https://doi.org/10.1103/PhysRevD.85.112006

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdel Khalek, S. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; AbouZeid, O. S. ; et al ( June 2012 , Physical Review D)
Search for a Light Higgs Boson Decaying to Long-Lived Weakly Interacting Particles in Proton-Proton Collisions at s=7 TeV with the ATLAS Detector

https://doi.org/10.1103/PhysRevLett.108.251801

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; AbouZeid, O. S. ; Abramowicz, H. ; et al ( June 2012 , Physical Review Letters)

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