Measurement of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>J</mml:mi><mml:mo stretchy="false">/</mml:mo><mml:mi>ψ</mml:mi></mml:math> production cross section in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si2.gif" overflow="scroll"><mml:mn>920</mml:mn><mml:mtext> GeV</mml:mtext><mml:mo stretchy="false">/</mml:mo><mml:mi>c</mml:mi></mml:math> fixed-target proton–nucleus interactions

Abt, I.; Adams, M. R.; Albrecht, H.; Amaral, Vasco; Amorim, A.; Aplin, S.; Aushev, V.; Bagaturia, Y.; Balagura, V.; Bargiotti, M.; Barsukova, O.; Bastos, J.; Bauer, C.; Bauer, Th.; Bel'kov, A.A.; Bertin, A.; Bobchenko, B.; Boecker, M.; Bogatyrev, A.; Böhm, G.; Braeuer, M.; Bruinsma, M.; Bruschi, M.; Buchholz, P.; Buran, T.; Carvalho, J.; Conde, P.; Cruse, C.; Dam, M.; Danielsen, K.M.; Danilov, M.; Castro, S. De; Deppe, H.; Dong, X.; Dreis, H. B.; Egorytchev, V.; Ehret, K.; Eisele, F.; Emeliyanov, D.; Essenov, S.; Fabbri, L.; Faccioli, P.; Feuerstack-Raible, M.; Flammer, J.; Fominykh, B.; Funcke, M.; Garrido, Ll.; Giacobbe, B.; Glaess, J.; Goloubkov, D.; Goloubkov, Y.; Golutvin, A.; Golutvin, I.; Gorbounov, I.; Gorišek, A.; Gouchtchine, O.; Goulart, D. C.; Gradl, S.; Gradl, W.; Guilitsky, Y.; Hansen, J. D.; Hernández, J. M.; Hofmann, W.; Hott, T.; Hulsbergen, W.; Husemann, U.; Igonkina, O.; Ispiryan, M.; Jagla, T.; Jiang, C. H.; Kapitza, H.; Karabekyan, S.; Karpenko, N.N.; Keller, S.; Khasanov, F.; Kiryushin, Yu.T.; Knöpfle, K. T.; Kolanoski, H.; Korpar, S.; Krauss, C. B.; Kreuzer, P.; Križan, P.; Kruecker, D.; Kvaratskheliia, T.; Lanev, A.; Lau, K.; Lewendel, B.; Löhse, T.; Mäenner, R.; Masciocchi, S.; Massa, I.; Matchikhilian, L.; Medin, G.; Medinnis, M.; Mevius, M.; Michetti, A.; Mikhailov, Yu. M.; Mizuk, R.; Mureşan, R.; Negodaev, M.; Noerenberg, M.; Nowak, S.; Vera, María Teresa Núñez Pardo de; Ouchrif, M.; Ould-Saada, F.; Aranda, C. Padilla; Peralta, D.; Pernack, R.; Pestotnik, R.; Piccinini, M.; Pleier, M. A.; Poli, M.; Popov, V.; Pose, D.; Pugatch, V.; Pylypchenko, Y.; Pyrlik, J.; Reeves, K.; Reßing, D.; Riu, I.; Robmann, P.; Rybnikov, V.; Sanchez, F. J. Munoz; Sbrizzi, A.; Schmelling, M.; Schmidt, B.; Schreiner, A.; Schroeder, H.; Schwartz, A. J.; Schwarz, A. S.; Schwenninger, B.; Schwingenheuer, B.; Sciacca, F. G.; Semprini‐Cesari, N.; Shuvalov, S.; Sözüer, L.; Solunin, S.; Somov, A.; Somov, S.; Spengler, J.; Spighi, R.; Спиридонов, А.; Stanovnik, A.; Starič, M.; Stegmann, C.; Symalla, M.; Tikhomirov, I.; Titov, M.; Tsakov, I.; Uwer, U.; Eldik, C. van; Vassiliev, Y.; Villa, M.; Vitale, A.; Vukotić, I.; Wahlberg, H.; Walenta, A.H.; Walter, Michael; Wang, J. J.; Wegener, D.; Werthenbach, U.; Wolters, H.; Wurth, R.; Wurz, A.; Zaitsev, Yu.; Zavertyaev, M.; Zeuner, T.; Zhelezov, A.; Zheng, Z. P.; Zimmermann, R.; Živko, T.; Zoccoli, À.; Aleksandrov, A.; Batista, J.; Grimaldi, F.; Keßler, J.; Küpper, Sebastian; Nedden, M. zur; Prystupa, S.; Rick, H.; Rostovtseva, I.; Silva, L.; Subramania, Halasya Siva; Lomonosov, B.; Agari, M.; Belotelov, I.; Erhan, S.; Gellrich, A.; Hohlmann, M.; Kisel, I.; Klinkby, E. B.; Mankel, R.; Petersen, B. A.; Schwanke, U.

doi:10.1016/j.physletb.2006.03.064

Cited by 22 publications

(5 citation statements)

References 40 publications

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“…For the heavy mesons we use PYTHIA8, which allows to switch on only the charmonium or bottomonium production processes. 4 We find the total production cross-sections σ J/ψ 250 nb and JHEP03(2021)272 σb b 1.3 nb, in reasonable agreement with the literature [42][43][44]. From the results of our simulations, and using a total proton-proton cross section σ pp 40 mb [45], we compute the average number of mesons produced per proton interaction, reported in table 1.…”

Section: Experiments At √ S 28 Gev: Charm and Shipsupporting

confidence: 81%

Probing light dark scalars with future experiments

Bertuzzo

Taoso

2021

J. High Energ. Phys.

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We investigate a dark sector containing a pair of light non-degenerate scalar particles, with masses in the MeV-GeV range, coupled to the visibile sector through heavier mediators. The heaviest dark state is long-lived, and its decays offer new testable signals. We analyze the prospects for detection with the proposed beam-dump facility SHiP, and the proposed LHC experiments FASER and MATHUSLA. Moreover, we consider bounds from the beam-dump experiment CHARM and from colliders (LEP, LHC and BaBar). We present our results both in terms of an effective field theory, where the heavy mediators have been integrated out, and of a simplified model containing a vector boson mediator, which can be heavy ≳ $$ \mathcal{O}(1) $$ O 1 TeV, or light $$ \mathcal{O}(10) $$ O 10 GeV. We show that future experiments can test large portions of the parameter space currently unexplored, and that they are complementary to future High-Luminosity LHC searches.

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Section: Experiments At √ S 28 Gev: Charm and Shipsupporting

confidence: 81%

Probing light dark scalars with future experiments

Bertuzzo

Taoso

2021

J. High Energ. Phys.

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show abstract

“…Several parameterisations of the distributions of events in sidebands fit well. We use the parameterization with two free parameters which gives the smallest χ 2 /ndf: Ce Fitting with the fixed value of β = 6, i.e., the value used for our study of J/ψ production [13] yields the same p T value, and the same χ 2 /ndf.…”

Section: Differential Cross Sectionsmentioning

confidence: 99%

“…In previous papers we have reported on the bb [11], Υ [12], and charmonium [13,14] The paper is organized as follows. We first briefly describe the apparatus, the data sample and the method of analysis.…”

Section: Introductionmentioning

confidence: 99%

Measurement of D0, D+, Ds + and D*+ production in fixed target 920 GeV proton–nucleus collisions

Abt¹,

Adams²,

Agari³

et al. 2007

Eur. Phys. J. C

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Abstract. The inclusive production cross sections of the charmed mesons D 0 , D + , D + s and D * + have been measured in interactions of 920 GeV protons on C, Ti, and W targets with the HERA-B detector at the HERA storage ring. Differential cross sections as a function of transverse momentum and Feynman's x variable are given for the central rapidity region and for transverse momenta up to pT = 3.5 GeV/c. The atomic mass number dependence and the leading to non-leading particle production asymmetries are presented as well.

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“…The result of the simulation is validated by comparing it with existing measurements. Particularly, the flux of muons passing through the beam dump [17] and the production rate of J/ψ [18] in the simulation and measurements are found to be in good agreement. Assuming N POT = 10 22 that corresponds to running the experiment for 3 years [19], the expected number of χs that reach the detector is in the order of 10 16 at = 1 and 10 8 at = 10 −4 .…”

Section: Jhep05(2021)031mentioning

confidence: 61%

Search for sub-millicharged particles at J-PARC

Kim

Hwang

Yoo

2021

J. High Energ. Phys.

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We studied the feasibility of an experiment searching for sub-millicharged particles (χs) using 30 GeV proton fixed-target collisions at J-PARC. The detector is composed of two layers of stacked scintillator bars and PMTs and is proposed to be installed 280 m from the target. The main background is a random coincidence between two layers due to dark counts in PMTs, which can be reduced to a negligible level using the timing of the proton beam. With NPOT = 1022 which corresponds to running the experiment for three years, the experiment provides sensitivity to χs with the charge down to 5 × 10−5 in mχ< 0.2 GeV/c2 and 8 × 10−4 in mχ< 1.6 GeV/c2. This is the regime largely uncovered by previous experiments. We also explored a few detector designs to achieve optimal sensitivity to χs. The photoelectron yield is the main driver, but the sensitivity does not have a strong dependence on detector configuration in the sub-millicharge regime.

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Measurement of the J/ψ production cross section in 920 GeV/c fixed-target proton–nucleus interactions

Cited by 22 publications

References 40 publications

Probing light dark scalars with future experiments

Probing light dark scalars with future experiments

Measurement of D0, D+, Ds + and D*+ production in fixed target 920 GeV proton–nucleus collisions

Search for sub-millicharged particles at J-PARC

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