[Hps] Fwd: arXiv New submission -> 1406.6115 in physics.ins-det from phansson at slac.stanford.edu

Tue Jun 24 23:33:56 EDT 2014

Pelle,

Great job. Thanks.

Stepan
On 6/24/14, 10:43 PM, Hansson Adrian, Per Ola wrote:
> Hi All,
>
> The test run nim paper is now on arxiv. Please see look at your name 
> and see if it's correct (I already had one issue). There is a passw 
> below if you want to claim ownership.
>
> Thanks,
>
> /Pelle
>
>
> Begin forwarded message:
>
>> *From:* "e-prints at arxiv.org <mailto:e-prints at arxiv.org>" 
>> <e-prints at arxiv.org <mailto:e-prints at arxiv.org>>
>> *Date:* June 24, 2014 at 17:13:07 PDT
>> *To:* "Hansson Adrian, Per Ola" <phansson at slac.stanford.edu 
>> <mailto:phansson at slac.stanford.edu>>
>> *Subject:* *arXiv New submission -> 1406.6115 in physics.ins-det from 
>> phansson at slac.stanford.edu <mailto:phansson at slac.stanford.edu>*
>> *Reply-To:* "help at arxiv.org <mailto:help at arxiv.org>" <help at arxiv.org 
>> <mailto:help at arxiv.org>>
>>
>> Your submission submit/1007032 has been assigned the permanent arXiv
>> identifier 1406.6115 and is available at:
>>
>> http://arxiv.org/abs/1406.6115
>>
>>
>> The paper password for this article is: xm9cp
>> Please share this with your co-authors. They may use it to claim
>> ownership.
>>
>>
>> Abstract will appear in today's mailing as:
>> ------------------------------------------------------------------------------
>> \\
>> arXiv:1406.6115
>> From: Per Hansson Adrian <phansson at slac.stanford.edu 
>> <mailto:phansson at slac.stanford.edu>>
>> Date: Tue, 24 Jun 2014 00:51:56 GMT   (5017kb,D)
>>
>> Title: The Heavy Photon Search Test Detector
>> Authors: Marco Battaglieri, Sergey Boyarinov, Stephen Bueltmann, Volker
>>  Burkert, Andrea Celentano, Gabriel Charles, William Cooper, Chris 
>> Cuevas,
>>  Natalia Dashyan, Raffaella DeVita, Camille Desnault, Alexandre Deur, 
>> Hovanes
>>  Egiyan, Latifa Elouadrhiri, Rouven Essig, Vitaliy Fadeyev, Clive 
>> Field, Arne
>>  Freyberger, Yuri Gershtein, Nerses Gevorgyan, Francois-Xavier Girod, 
>> Norman
>>  Graf, Matthew Graham, Keith Griffioen, Alexander Grillo, Michel Guidal,
>>  Gunther Haller, Per Hansson Adrian, Ryan Herbst, Maurik Holtrop, 
>> John Jaros,
>>  Scott Kaneta, Mahbub Khandaker, Alexey Kubarovsky, Valery 
>> Kubarovsky, Takashi
>>  Maruyama, Jeremy McCormick, Ken Moffeit, Omar Moreno, Homer Neal, 
>> Timothy
>>  Nelson, Silvia Niccolai, Al Odian, Marco Oriunno, Rafayel 
>> Paremuzyan, Richard
>>  Partridge, Sarah Phillips, Emmanuel Rauly, Benjamin Raydo, Joseph 
>> Reichert,
>>  Emmanuel Rindel, Philippe Rosier, Carlos Salgado, Philip Schuster, Youri
>>  Sharabian, Daria Sokhan, Stepan Stepanyan, Natalia Toro, Sho Uemura, 
>> Maurizio
>>  Ungaro, Hakop Voskanyan, Dieter Walz, Larry Weinstein, Bogdan 
>> Wojtsekhowski
>> Categories: physics.ins-det hep-ex
>> Comments: 15 pages, 18 figures, to be published in Nuclear 
>> Instruments and
>>  Methods in Physics Research Section A, editor: Per Hansson Adrian
>> Report-no: SLAC-PUB-15999
>> License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
>> \\
>>  The Heavy Photon Search (HPS), an experiment to search for a hidden 
>> sector
>> photon in fixed target electroproduction, is preparing for 
>> installation at the
>> Thomas Jefferson National Accelerator Facility (JLab) in the Fall of 
>> 2014. As
>> the first stage of this project, the HPS Test Run apparatus was 
>> constructed and
>> operated in 2012 to demonstrate the experiment's technical 
>> feasibility and to
>> confirm that the trigger rates and occupancies are as expected. This 
>> paper
>> describes the HPS Test Run apparatus and readout electronics and its
>> performance. In this setting, a heavy photon can be identified as a 
>> narrow peak
>> in the e$^+$e$^-$ invariant mass spectrum, above the trident 
>> background or as a
>> narrow invariant mass peak with a decay vertex displaced from the 
>> production
>> target, so charged particle tracking and vertexing are needed for its
>> detection. In the HPS Test Run, charged particles are measured with a 
>> compact
>> forward silicon microstrip tracker inside a dipole magnet. 
>> Electromagnetic
>> showers are detected in a PbW0$_{4}$ crystal calorimeter situated 
>> behind the
>> magnet, and are used to trigger the experiment and identify electrons and
>> positrons. Both detectors are placed close to the beam line and split
>> top-bottom. This arrangement provides sensitivity to low-mass heavy 
>> photons,
>> allows clear passage of the unscattered beam, and avoids the spray of 
>> degraded
>> electrons coming from the target. The discrimination between prompt and
>> displaced e$^+$e$^-$ pairs requires the first layer of silicon sensors be
>> placed only 10~cm downstream of the target. The expected signal is 
>> small, and
>> the trident background huge, so the experiment requires very large 
>> statistics.
>> Accordingly, the HPS Test Run utilizes high-rate readout and data 
>> acquisition
>> electronics and a fast trigger to exploit the essentially 100% duty 
>> cycle of
>> the CEBAF accelerator at JLab.
>> \\
>>
>>
>> Contains:
>> 2012-101-PHOTON-DETECTOR-001.jpg: 353797 bytes
>> ECal.png: 89789 bytes
>> HPS_nochamber.jpg: 649009 bytes
>> IMG_5200.JPG: 2445145 bytes
>> author_list_hps_PAC39_compact_alphabetical_order.tex: 4216 bytes
>> ecal-module-schematic.png: 189529 bytes
>> elsarticle.cls: 26095 bytes
>> h_cl_E_probedata_eff_bay_h_cl_E_probeMC_eff_bay_dataMC_1351-v7-trig-tagBot.pdf: 
>> 16850 bytes
>> h_ep_data_0_h_ep_MC_0_dataMC_1351-v6-v6gains_2-trig-top-cl600reg0.pdf: 18198 
>> bytes
>> h_invM_h_invM_trigsel4hit_pair1351_twotrkfilt-v6-paper-mod.pdf: 17863 
>> bytes
>> h_sumE_h_sumE_trigsel4hit_pair1351_twotrkfilt-v6-paper.pdf: 16802 bytes
>> h_trk_top_fr_conv_y_h_trk_top_conv_y_dataMC_twotrksel-mod.pdf: 18781 
>> bytes
>> h_trk_top_fr_conv_z_h_trk_top_conv_z_dataMC_twotrksel-mod.pdf: 17444 
>> bytes
>> h_trk_top_px_h_trk_top_px_trigsel4hit_pair1351_twotrkfilt-v6-paper-mod.pdf: 
>> 18294 bytes
>> hps-testrun-beamline-edited3.png: 136272 bytes
>> hps-testrun-nim.bbl: 9285 bytes
>> hps-testrun-nim.tex: 60893 bytes
>> hps-testrun-nim.toc: 1703 bytes
>> hps_testrun_rendering_2.jpeg: 205123 bytes
>> hps_trigger_cal.pdf: 64743 bytes
>> mip_top_layer_2.png: 52522 bytes
>> model1-num-names.bst: 28801 bytes
>> run1351_110513_samples_L1_top.pdf: 344374 bytes
>> run1351_time_residual_top_layer2.pdf: 21954 bytes
>> single_hit_efficiency.pdf: 14943 bytes
>> svt-daq-sketch.pdf: 100651 bytes
>> svt_daq_module.png: 559300 bytes
>>
>>
>
>
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