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000301841 005__ 20211110134744.0
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000301841 1001_ $$0P:(DE-HGF)0$$aHoffstaetter, G. H.$$b0$$eCorresponding author
000301841 1112_ $$aThe 7th European Particle Accelerator Conference EPAC 2000$$cVienna$$d2000-06-26 - 2000-06-30$$gEPAC 2000$$wAustria
000301841 245__ $$aFuture Possibilities for HERA
000301841 260__ $$aHamburg$$bDESY$$c2000
000301841 300__ $$a13-17
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000301841 520__ $$aDuring a shut down period of 9 months starting September 2000 two interaction regions of HERA will be upgraded. The interacting sizes of the electron and the proton beams will be reduced by moving superconducting quadrupoles into the detectors of H1 and ZEUS. To match the proton beam, the size of the electron beam will be further reduced by decreasing the horizontal electron emittance. These measures should increase the maximum luminosity from the current 2 · 10$^{31}$cm$^{−2}$s$^{−1}$ to 4.7 · 10$^{31}$cm$^{−2}$s$^{−1}$ . If in addition the design currents are reached, a luminosity of 7.6 · 10$^{31}$cm$^{−2}$s$^{−1}$ is expected. Spin rotators will be installed around the two collider experiments to deliver a longitudinally polarized electron beam. The technical components and concepts for handling the synchrotron radiation background in the detector region will be critical and the changes in the dynamics of the polarized electron beam have been analyzed. For the time after the program for collisions of protons with polarized electrons has come to an end several years after this luminosity upgrade, the high energy community has expressed strong interest in new physics at HERA. Three possible future concepts will be described. A) Storing light and heavy ions for collisions with polarized electrons in HERA. B) Accelerating and storing polarized protonsfor polarized e/p collisions in HERA. C) Accelerating and storing polarized deuterons in HERA for a simultaneous analysis of polarized e/p and polarized e/n collisions. Some of these concepts will only be feasible after installing an electron cooler in PETRA and/or HERA. The electronbeam for these collisions could come from HERA or possibly form TESLA.
000301841 536__ $$0G:(DE-H253)POF1-HGF-No-Prog-20130405$$aNo facility / HGF program None (POF1-890)$$cPOF1-890$$x0
000301841 588__ $$aDataset connected to INSPIRE
000301841 650_7 $$2INSPIRE$$atalk: Vienna 2000/06/26
000301841 650_7 $$2INSPIRE$$aelectron p: storage ring
000301841 650_7 $$2INSPIRE$$aluminosity: upgrade
000301841 650_7 $$2INSPIRE$$abeam focusing: colliding beams
000301841 650_7 $$2INSPIRE$$aquadrupole lens: superconductivity
000301841 650_7 $$2INSPIRE$$aelectron: polarized beam
000301841 650_7 $$2INSPIRE$$aspin: rotator
000301841 650_7 $$2INSPIRE$$ap: polarized beam
000301841 650_7 $$2INSPIRE$$adeuteron: polarized beam
000301841 650_7 $$2INSPIRE$$aion: storage ring
000301841 650_7 $$2INSPIRE$$abeam cooling: electron cooling
000301841 650_7 $$2INSPIRE$$aDESY HERA Stor
000301841 693__ $$0EXP:(DE-MLZ)NOSPEC-20140101$$5EXP:(DE-MLZ)NOSPEC-20140101$$eNo specific instrument$$x0
000301841 7870_ $$0PUBDB-2016-02907$$aDecking, Winfried$$dHamburg : DESY, 2000$$iIsPartOf$$rDESY-M-00-04; C00-06-26.2$$tContributions to the 7th European Particle Accelerator Conference EPAC 2000
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