49
49
Sep 19, 2013
09/13
by
John W. Flanagan; John G. Learned; Sandip Pakvasa
texts
eye 49
favorite 0
comment 0
We propose a simple test of underground neutrino data to discriminate amongst neutrino oscillation models. It uses the asymmetry between downward-going events and upward-going events, for electron and muon events separately. Because of the symmetry of typical underground detectors, an asymmetry can be compared with calculations with little need for the intermediary of a simulation program. Furthermore, we show that the various oscillation scenarios give rise to dramatically differing...
Source: http://arxiv.org/abs/hep-ph/9709438v1
46
46
Sep 21, 2013
09/13
by
J. W. Flanagan; K. Ohmi; H. Fukuma; S. Hiramatsu; M. Tobiyama; E. Perevedentsev
texts
eye 46
favorite 0
comment 0
The effects of electron clouds on positively-charged beams have been an active area of research in recent years at particle accelerators around the world. Transverse beam-size blow-up due to electron clouds has been observed in some machines, and is considered to be a major limiting factor in the development of higher-current, higher-luminosity electron-positron colliders. The leading proposed mechanism for beam blow-up is the excitation of a fast head-tail instability due to short-range wakes...
Source: http://arxiv.org/abs/physics/0407149v3
16
16
Jun 28, 2018
06/18
by
J. P. Alexander; C. Conolly; E. Edwards; J. W. Flanagan; E. Fontes; B. K. Heltsley; A. Lyndaker; D. P. Peterson; N. T. Rider; D. L. Rubin; R. Seeley; J. Shanks
texts
eye 16
favorite 0
comment 0
We describe operation of the CESR-TA vertical beam size monitor (xBSM) with $e^\pm$ beams with $E_{\rm b}$=4 GeV. The xBSM measures vertical beam size by imaging synchrotron radiation x-rays through an optical element onto a detector array of 32 InGaAs photodiodes with 50 $\mu$m pitch. The device has previously been successfully used to measure vertical beam sizes of 10-100 $\mu$m on a bunch-by-bunch, turn-by-turn basis at $e^\pm$ beam energies of $\sim$2 GeV and source magnetic fields below...
Topics: Instrumentation and Detectors, Accelerator Physics, Physics
Source: http://arxiv.org/abs/1507.02578
3
3.0
Jun 30, 2018
06/18
by
J. P. Alexander; A. Chatterjee; C. Conolly; E. Edwards; M. P. Ehrlichman; J. W. Flanagan; E. Fontes; B. K. Heltsley; A. Lyndaker; D. P. Peterson; N. T. Rider; D. L. Rubin; R. Seeley; J. Shanks
texts
eye 3
favorite 0
comment 0
We describe the design and performance of optical elements for an x-ray beam size monitor (xBSM), a device measuring $e^+$ and $e^-$ beam sizes in the CESR-TA storage ring. The device can measure vertical beam sizes of $10-100~\mu$m on a turn-by-turn, bunch-by-bunch basis at $e^\pm$ beam energies of $\sim2-5~$GeV. X-rays produced by a hard-bend magnet pass through a single- or multiple-slit (coded aperture) optical element onto a detector. The coded aperture slit pattern and thickness of...
Topics: Physics, Accelerator Physics, Instrumentation and Detectors
Source: http://arxiv.org/abs/1408.3308
6
6.0
Jun 29, 2018
06/18
by
MINER Collaboration; G. Agnolet; W. Baker; D. Barker; R. Beck; T. J. Carroll; J. Cesar; P. Cushman; J. B. Dent; S. De Rijck; B. Dutta; W. Flanagan; M. Fritts; Y. Gao; H. R. Harris; C. C. Hays; V. Iyer; A. Jastram; F. Kadribasic; A. Kennedy; A. Kubik; I. Ogawa; K. Lang; R. Mahapatra; V. Mandic; R. D. Martin; N. Mast; S. McDeavitt; N. Mirabolfathi; B. Mohanty; K. Nakajima; J. Newhouse; J. L. Newstead; D. Phan; M. Proga; A. Roberts; G. Rogachev; R. Salazar; J. Sander; K. Senapati; M. Shimada; L....
texts
eye 6
favorite 0
comment 0
The proposed Mitchell Institute Neutrino Experiment at Reactor (MINER) experiment at the Nuclear Science Center at Texas A&M University will search for coherent elastic neutrino-nucleus scattering within close proximity (about 2 meters) of a 1 MW TRIGA nuclear reactor core using low threshold, cryogenic germanium and silicon detectors. Given the Standard Model cross section of the scattering process and the proposed experimental proximity to the reactor, as many as 5 to 20 events/kg/day are...
Topics: High Energy Physics - Experiment, Physics, Instrumentation and Detectors
Source: http://arxiv.org/abs/1609.02066
5
5.0
Jun 29, 2018
06/18
by
P. Adamson; I. Anghel; A. Aurisano; G. Barr; M. Bishai; A. Blake; G. J. Bock; D. Bogert; S. V. Cao; T. J. Carroll; C. M. Castromonte; R. L. Talaga; J. Thomas; M. A. Thomson; X. Tian; A. Timmons; J. Todd; S. C. Tognini; R. Toner; D. Torretta; G. Tzanakos; R. Chen; J. Urheim; P. Vahle; B. Viren; A. Weber; R. C. Webb; C. White; L. Whitehead; L. H. Whitehead; S. G. Wojcicki; R. Zwaska; S. Childress; J. A. B. Coelho; L. Corwin; D. Cronin-Hennessy; J. K. de Jong; S. de Rijck; A. V. Devan; N. E....
texts
eye 5
favorite 0
comment 0
We report new constraints on flavor-changing non-standard neutrino interactions from the MINOS long-baseline experiment using $\nu_{e}$ and $\bar{\nu}_{e}$ appearance candidate events from predominantly $\nu_{\mu}$ and $\bar{\nu}_{\mu}$ beams. We used a statistical selection algorithm to separate $\nu_{e}$ candidates from background events, enabling an analysis of the combined MINOS neutrino and antineutrino data. We observe no deviations from standard neutrino mixing, and thus place...
Topic: High Energy Physics - Experiment
Source: http://arxiv.org/abs/1605.06169
10
10.0
Jun 29, 2018
06/18
by
P. Adamson; I. Anghel; A. Aurisano; G. Barr; M. Bishai; A. Blake; G. J. Bock; D. Bogert; S. V. Cao; T. J. Carroll; C. M. Castromonte; A. Sousa; N. Tagg; R. L. Talaga; J. Thomas; M. A. Thomson; X. Tian; A. Timmons; J. Todd; S. C. Tognini; R. Toner; R. Chen; D. Torretta; G. Tzanakos; J. Urheim; P. Vahle; B. Viren; A. Weber; R. C. Webb; C. White; L. Whitehead; L. H. Whitehead; D. Cherdack; S. G. Wojcicki; R. Zwaska; S. Childress; J. A. B. Coelho; L. Corwin; D. Cronin-Hennessy; J. K. de Jong; S. De...
texts
eye 10
favorite 0
comment 0
Forward single $\pi^0$ production by coherent neutral-current interactions, $\nu \mathcal{A} \to \nu \mathcal{A} \pi^0$, is investigated using a 2.8$\times 10^{20}$ protons-on-target exposure of the MINOS Near Detector. For single-shower topologies, the event distribution in production angle exhibits a clear excess above the estimated background at very forward angles for visible energy in the range~1-8 GeV. Cross sections are obtained for the detector medium comprised of 80% iron and 20%...
Topic: High Energy Physics - Experiment
Source: http://arxiv.org/abs/1608.05702
6
6.0
Jun 29, 2018
06/18
by
P. Adamson; I. Anghel; A. Aurisano; G. Barr; M. Bishai; A. Blake; G. J. Bock; D. Bogert; S. V. Cao; T. J. Carroll; C. M. Castromonte; R. L. Talaga; J. Thomas; M. A. Thomson; X. Tian; A. Timmons; J. Todd; S. C. Tognini; R. Toner; D. Torretta; G. Tzanakos; R. Chen; J. Urheim; P. Vahle; B. Viren; A. Weber; R. C. Webb; C. White; L. Whitehead; L. H. Whitehead; S. G. Wojcicki; R. Zwaska; S. Childress; J. A. B. Coelho; L. Corwin; D. Cronin-Hennessy; J. K. de Jong; S. De Rijck; A. V. Devan; N. E....
texts
eye 6
favorite 0
comment 0
We report new constraints on the size of large extra dimensions from data collected by the MINOS experiment between 2005 and 2012. Our analysis employs a model in which sterile neutrinos arise as Kaluza-Klein states in large extra dimensions and thus modify the neutrino oscillation probabilities due to mixing between active and sterile neutrino states. Using Fermilab's NuMI beam exposure of $10.56 \times 10^{20}$ protons-on-target, we combine muon neutrino charged current and neutral current...
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1608.06964
11
11
Jun 29, 2018
06/18
by
P. Adamson; I. Anghel; A. Aurisano; G. Barr; M. Bishai; A. Blake; G. J. Bock; D. Bogert; S. V. Cao; T. J. Carroll; C. M. Castromonte; R. L. Talaga; J. Thomas; M. A. Thomson; X. Tian; A. Timmons; J. Todd; S. C. Tognini; R. Toner; D. Torretta; G. Tzanakos; R. Chen; J. Urheim; P. Vahle; B. Viren; A. Weber; R. C. Webb; C. White; L. Whitehead; L. H. Whitehead; S. G. Wojcicki; R. Zwaska; S. Childress; J. A. B. Coelho; L. Corwin; D. Cronin-Hennessy; J. K. de Jong; S. De Rijck; A. V. Devan; N. E....
texts
eye 11
favorite 0
comment 0
We report results of a search for oscillations involving a light sterile neutrino over distances of 1.04 and $735\,\mathrm{km}$ in a $\nu_{\mu}$-dominated beam with a peak energy of $3\,\mathrm{GeV}$. The data, from an exposure of $10.56\times 10^{20}\,\textrm{protons on target}$, are analyzed using a phenomenological model with one sterile neutrino. We constrain the mixing parameters $\theta_{24}$ and $\Delta m^{2}_{41}$ and set limits on parameters of the four-dimensional...
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1607.01176
9
9.0
Jun 29, 2018
06/18
by
Minos Collaboration; P. Adamson; I. Anghel; A. Aurisano; G. Barr; M. Bishai; A. Blake; G. J. Bock; D. Bogert; S. V. Cao; T. J. Carroll; N. Tagg; R. L. Talaga; J. Thomas; M. A. Thomson; X. Tian; A. Timmons; J. Todd; S. C. Tognini; R. Toner; D. Torretta; C. M. Castromonte; G. Tzanakos; J. Urheim; P. Vahle; B. Viren; A. Weber; R. C. Webb; C. White; L. Whitehead; L. H. Whitehead; S. G. Wojcicki; R. Chen; R. Zwaska; S. Childress; J. A. B. Coelho; L. Corwin; D. Cronin-Hennessy; J. K. de Jong; S. De...
texts
eye 9
favorite 0
comment 0
The charge ratio, $R_\mu = N_{\mu^+}/N_{\mu^-}$, for cosmogenic multiple-muon events observed at an under- ground depth of 2070 mwe has been measured using the magnetized MINOS Far Detector. The multiple-muon events, recorded nearly continuously from August 2003 until April 2012, comprise two independent data sets imaged with opposite magnetic field polarities, the comparison of which allows the systematic uncertainties of the measurement to be minimized. The multiple-muon charge ratio is...
Topics: Instrumentation and Detectors, Physics, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1602.00783
13
13
Jun 29, 2018
06/18
by
Daya Bay; MINOS Collaborations; :; P. Adamson; F. P. An; I. Anghel; A. Aurisano; A. B. Balantekin; H. R. Band; G. Barr; M. Bishai; J. Huang; X. T. Huang; P. Huber; W. Huo; G. Hussain; J. Hylen; G. M. Irwin; Z. Isvan; D. E. Jaffe; P. Jaffke; A. Blake; C. James; K. L. Jen; D. Jensen; S. Jetter; X. L. Ji; X. P. Ji; J. B. Jiao; R. A. Johnson; J. K. de Jong; J. Joshi; S. Blyth G. J. Bock; T. Kafka; L. Kang; S. M. S. Kasahara; S. H. Kettell; S. Kohn; G. Koizumi; M. Kordosky; M. Kramer; A. Kreymer; 1...
texts
eye 13
favorite 0
comment 0
Searches for a light sterile neutrino have been performed independently by the MINOS and the Daya Bay experiments using the muon (anti)neutrino and electron antineutrino disappearance channels, respectively. In this Letter, results from both experiments are combined with those from the Bugey-3 reactor neutrino experiment to constrain oscillations into light sterile neutrinos. The three experiments are sensitive to complementary regions of parameter space, enabling the combined analysis to probe...
Topic: High Energy Physics - Experiment
Source: http://arxiv.org/abs/1607.01177
