Zobrazeno 1 - 10
of 15
pro vyhledávání: '"R. E. Mikkelsen"'
Publikováno v:
Advances in High Energy Physics. 2015:1-7
We outline the opportunities to study the production of the Standard Model bosons,W±,Z0, andH0, at “low” energies at fixed-target experiments based on possible future ultrahigh-energy proton colliders, that is, the High-Energy LHC, the Super pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a28f41401a8f815d46ce9326c96571f
https://doi.org/10.1155/2015/249167
https://doi.org/10.1155/2015/249167
Autor:
Laura Bandiera, R. J. Noble, Vincenzo Guidi, Enrico Bagli, Ulrik I. Uggerhøj, Andrea Mazzolari, U. Wienands, S. Tucker, Mark Hogan, R. E. Mikkelsen, T. N. Wistisen, Spencer Gessner, R. Holtzapple, A. I. Sytov, T. W. Markiewicz
Publikováno v:
Wistisen, T N, Mikkelsen, R E, Uggerhoj, U I, Wienands, U, Markiewicz, T W, Gessner, S, Hogan, M J, Noble, R J, Holtzapple, R, Tucker, S, Guidi, V, Mazzolari, A, Bagli, E, Bandiera, L, Sytov, A & SLAC E-212 Collaboration 2017, ' Observation of Quasichanneling Oscillations ', Physical Review Letters, vol. 119, no. 2, 024801 . https://doi.org/10.1103/PhysRevLett.119.024801
We report on the first experimental observations of quasichanneling oscillations, recently seen in simulations and described theoretically. Although above-barrier particles penetrating a single crystal are generally seen as behaving almost as in an a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bab51091095c0294e30b97e2bd8bd6f2
https://doi.org/10.1103/physrevlett.119.024801
https://doi.org/10.1103/physrevlett.119.024801
Publikováno v:
Uggerhoj, U I, Mikkelsen, R E & Faye, J 2016, ' The young centre of the Earth ', European Journal of Physics, vol. 37, no. 3, 035602 . https://doi.org/10.1088/0143-0807/37/3/035602
We treat, as an illustrative example of gravitational time dilation in relativity, the observation that the center of the Earth is younger than the surface by an appreciable amount. Richard Feynman first made this insightful point and presented an es
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4590d4ca3aee76ac8cdd8fcd21eae0fb
http://arxiv.org/abs/1604.05507
http://arxiv.org/abs/1604.05507
Publikováno v:
Mikkelsen, R E, Poulsen, T, Uggerhøj, U I & Klein, S R 2016, ' Characteristics of Cherenkov Radiation in Naturally Occuring Ice ', Physical Review D, vol. 93, 053006 . https://doi.org/10.1103/PhysRevD.93.053006
Mikkelsen, RE; Poulsen, T; Uggerhøj, UI; & Klein, SR. (2016). Characteristics of Cherenkov radiation in naturally occurring ice. Physical Review D, 93(5). doi: 10.1103/PhysRevD.93.053006. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/76g7g1hk
Physical Review D, vol 93, iss 5
Mikkelsen, RE; Poulsen, T; Uggerhøj, UI; & Klein, SR. (2016). Characteristics of Cherenkov radiation in naturally occurring ice. Physical Review D, 93(5). doi: 10.1103/PhysRevD.93.053006. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/76g7g1hk
Physical Review D, vol 93, iss 5
Author(s): Mikkelsen, RE; Poulsen, T; Uggerhoj, UI; Klein, SR | Abstract: We revisit the theory of Cherenkov radiation in uniaxial crystals. Historically, a number of flawed attempts have been made at explaining this radiation phenomenon, and a consi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5484296bdcfda03b23b8737da07a947
http://arxiv.org/abs/1602.03714
http://arxiv.org/abs/1602.03714
Publikováno v:
Mikkelsen, R E, Sørensen, A H & Uggerhøj, U I 2016, ' Elastic photonuclear cross sections for bremsstrahlung from relativistic ions ', Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 372, pp. 58-66 . https://doi.org/10.1016/j.nimb.2016.02.003
In this paper, we provide a procedure to calculate the bremsstrahlung spectrum for virtually any relativistic bare ion with charge 6e or beyond, Z ⩾ 6 , in ultraperipheral collisions with target nuclei. We apply the Weizsacker–Williams method of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::629fc5e18714d3285e6fd8356b994e50
http://arxiv.org/abs/1510.02600
http://arxiv.org/abs/1510.02600
Publikováno v:
Advances in High Energy Physics, Vol 2015 (2015)
Mikkelsen, R E, Sørensen, A H & Uggerhøj, U I 2015, ' Bremsstrahlung from relativistic heavy ions in a fixed target experiment at the LHC ', Advances in High Energy Physics, vol. 2015, 625473 . https://doi.org/10.1155/2015/625473
Advances in High Energy Physics
Mikkelsen, R E, Sørensen, A H & Uggerhøj, U I 2015, ' Bremsstrahlung from relativistic heavy ions in a fixed target experiment at the LHC ', Advances in High Energy Physics, vol. 2015, 625473 . https://doi.org/10.1155/2015/625473
Advances in High Energy Physics
We calculate the emission of bremsstrahlung from lead and argon ions in A Fixed Target ExpeRiment (AFTER) that uses the LHC beams. With nuclear charges of $Ze$ equal $208$ and $18$ respectively, these ions are accelerated to energies of $7$ TeV$\time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24d58bfe3c55d4d25802c19134bf569b
Autor:
R. E. Mikkelsen, Barbara Antonina Trzeciak, C. Hadjidakis, Yang Gao, Cristian Pisano, B. Genolini, Cédric Lorcé, Ralf Ulrich, V. Chambert, Ingo Schienbein, J. P. Didelez, François Fleuret, L. Massacrier, I. Hřivnáčová, Roberta Arnaldi, Jean-Philippe Lansberg, A. Rakotozafindrabe, P. Rosier, E. G. Ferreiro, W. den Dunnen, Marc Schlegel, Zishuo Yang, Stanley J. Brodsky, Ulrik I. Uggerhøj, M. Anselmino, Enrico Scomparin
Publikováno v:
International Journal of Modern Physics: Conference Series
21st International Symposium on Spin Physics (Spin2014)
21st International Symposium on Spin Physics (Spin2014), Oct 2014, Beijing, France. pp.1660107, ⟨10.1142/S2010194516601071⟩
Massacrier, L, Anselmino, M, Arnaldi, R, Brodsky, S J, Chambert, V, den Dunnen, W, Didelez, J P, Genolini, B, Ferreiro, E G, Fleuret, F, Gao, Y, Hadjidakis, C, Hrivnacova, C, Lansberg, J P, Lorcé, C, Mikkelsen, R E, Pisano, C, Rakotozafindrabe, A, Rosier, P, Schienbein, I, Schlegel, M, Scomparin, E, Trzeciak, B, Uggerhøj, U I, Ulrich, R & Yang, Z 2015, ' Studies of Transverse-Momentum-Dependent distributions with A Fixed-Target ExpeRiment using the LHC beams (AFTER@LHC) ', arXiv, vol. 1502, no. 00984 . < http://arxiv.org/abs/1502.00984 >
Aarhus University
21st International Symposium on Spin Physics (Spin2014)
21st International Symposium on Spin Physics (Spin2014), Oct 2014, Beijing, France. pp.1660107, ⟨10.1142/S2010194516601071⟩
Massacrier, L, Anselmino, M, Arnaldi, R, Brodsky, S J, Chambert, V, den Dunnen, W, Didelez, J P, Genolini, B, Ferreiro, E G, Fleuret, F, Gao, Y, Hadjidakis, C, Hrivnacova, C, Lansberg, J P, Lorcé, C, Mikkelsen, R E, Pisano, C, Rakotozafindrabe, A, Rosier, P, Schienbein, I, Schlegel, M, Scomparin, E, Trzeciak, B, Uggerhøj, U I, Ulrich, R & Yang, Z 2015, ' Studies of Transverse-Momentum-Dependent distributions with A Fixed-Target ExpeRiment using the LHC beams (AFTER@LHC) ', arXiv, vol. 1502, no. 00984 . < http://arxiv.org/abs/1502.00984 >
Aarhus University
We report on the studies of Transverse-Momentum-Dependent distributions (TMDs) at a future fixed-target experiment --AFTER@LHC-- using the $p^+$ or Pb ion LHC beams, which would be the most energetic fixed-target experiment ever performed. AFTER@LHC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d879562bdf5d50ed29b296186af0761
https://hal.in2p3.fr/in2p3-01112986
https://hal.in2p3.fr/in2p3-01112986
Autor:
J. Esberg, S. L. Andersen, A. Mangiarotti, K. K. Andersen, H. D. Thomsen, T. N. Wistisen, P. Sona, R. E. Mikkelsen, T. J. Ketel, Ulrik I. Uggerhøj, Helge Knudsen
Publikováno v:
Andersen, K, Uggerhøj, U I, Mikkelsen, R E, Wistisen, T N, Andersen, S L, Thomsen, H D, Knudsen, H, Esberg, J, Sona, P, Mangiarotti, A & Ketel, T J 2014, ' Measurements of the spectral location of the structured target resonance for ultrarelativistic electrons ', Physics Letters B: Particle Physics, Nuclear Physics and Cosmology, vol. 732, pp. 309 . https://doi.org/10.1016/j.physletb.2014.03.055
Physics Letters B, 732, 309-314. Elsevier
Physics Letters B
Andersen, K & Ketel, T J 2014, ' Measurements of the spectral location of the structured target resonance for ultrarelativistic electrons ', Physics Letters B, vol. 732, pp. 309-314 . https://doi.org/10.1016/j.physletb.2014.03.055
Physics Letters B, 732, 309-314. Elsevier
Physics Letters B
Andersen, K & Ketel, T J 2014, ' Measurements of the spectral location of the structured target resonance for ultrarelativistic electrons ', Physics Letters B, vol. 732, pp. 309-314 . https://doi.org/10.1016/j.physletb.2014.03.055
When an ultrarelativistic electron traverses two closely spaced foils, a radiation spectrum 'resonance' appears, arising from the photon formation length extending from one foil, across the gap and into the second foil. Several theoretical approaches
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07fb84c8dcfc4840ecce3d5ebff50952
https://pure.au.dk/portal/da/publications/measurements-of-the-spectral-location-of-the-structured-target-resonance-for-ultrarelativistic-electrons(319f5b62-6634-4ac0-8723-392a13f09722).html
https://pure.au.dk/portal/da/publications/measurements-of-the-spectral-location-of-the-structured-target-resonance-for-ultrarelativistic-electrons(319f5b62-6634-4ac0-8723-392a13f09722).html
Autor:
Werner Lauth, R. E. Mikkelsen, Serdar Yilmaz, John Lundsgaard Hansen, T. N. Wistisen, Hartmut Backe, Ulrik I. Uggerhøj, K. K. Andersen
Publikováno v:
Wistisen, T N, Andersen, K K, Yilmaz, S, Mikkelsen, R E, Hansen, J L, Uggerhøj, U I, Lauth, W & Backe, H 2014, ' Experimental Realization of a New Type of Crystalline Undulator ', Physical Review Letters, vol. 112, pp. 254801 . https://doi.org/10.1103/PhysRevLett.112.254801
A new scheme of making crystalline undulators was recently proposed and investigated theoretically by Andriy Kostyuk, concluding that a new type of crystalline undulator would be not only viable, but better than the previous scheme. This article desc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3888792b73911725c814ec461983f9b7
https://pubmed.ncbi.nlm.nih.gov/25014820
https://pubmed.ncbi.nlm.nih.gov/25014820
Autor:
Cynthia Marie Hadjidakis, Marc Schlegel, Cédric Lorcé, B. Genolini, Z. Yang, Roberta Arnaldi, M. Anselmino, Barbara Antonina Trzeciak, Stanley J. Brodsky, P. Rosier, Ulrik I. Uggerhøj, Enrico Scomparin, Cristian Pisano, Yang Gao, I. Hrvinacova, Elena G. Ferreiro, Ralf Ulrich, Ingo Schienbein, Andry Malala Rakotozafindrabe, Laure Marie Massacrier, W. den Dunnen, J.P. Didelez, R. E. Mikkelsen, François Fleuret, V. Chambert, Jean-Philippe Lansberg
Publikováno v:
European Physical Journal: Web of Conferences
4th International Workshop on Transverse Polarisation Phenomena in Hard Processes (Transversity 2014)
4th International Workshop on Transverse Polarisation Phenomena in Hard Processes (Transversity 2014), Jun 2014, Chia, Calgari, Italy. pp.02038, ⟨10.1051/epjconf/20158502038⟩
Lansberg, J P, Anselmino, M, Arnaldi, R, Brodsky, S J, Chambert, V, den Dunnen, W, Didelez, J P, Genolini, B, Ferreiro, E G, Fleuret, F, Gao, Y, Hadjidakis, C, Hrvinacova, I, Lorce, C, Massacrier, L, Mikkelsen, R, Pisano, C, Rakotozafindrabe, A, Rosier, P, Schienbein, I, Schlegel, M, Scomparin, E, Trzeciak, B, Uggerhoj, U I, Ulrich, R & Yang, Z 2015, ' Spin physics and TMD studies at A Fixed-Target ExpeRiment at the LHC (AFTER@LHC) ', E P J Web of Conferences, vol. 85, 02038 . https://doi.org/10.1051/epjconf/20158502038
EPJ Web of Conferences, Vol 85, p 02038 (2015)
4th International Workshop on Transverse Polarisation Phenomena in Hard Processes (Transversity 2014)
4th International Workshop on Transverse Polarisation Phenomena in Hard Processes (Transversity 2014), Jun 2014, Chia, Calgari, Italy. pp.02038, ⟨10.1051/epjconf/20158502038⟩
Lansberg, J P, Anselmino, M, Arnaldi, R, Brodsky, S J, Chambert, V, den Dunnen, W, Didelez, J P, Genolini, B, Ferreiro, E G, Fleuret, F, Gao, Y, Hadjidakis, C, Hrvinacova, I, Lorce, C, Massacrier, L, Mikkelsen, R, Pisano, C, Rakotozafindrabe, A, Rosier, P, Schienbein, I, Schlegel, M, Scomparin, E, Trzeciak, B, Uggerhoj, U I, Ulrich, R & Yang, Z 2015, ' Spin physics and TMD studies at A Fixed-Target ExpeRiment at the LHC (AFTER@LHC) ', E P J Web of Conferences, vol. 85, 02038 . https://doi.org/10.1051/epjconf/20158502038
EPJ Web of Conferences, Vol 85, p 02038 (2015)
We report on the opportunities for spin physics and Transverse-Momentum Dependent distribution (TMD) studies at a future multi-purpose fixed-target experiment using the proton or lead ion LHC beams extracted by a bent crystal. The LHC multi-TeV beams
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e09843db606d94476f7979378d21c74