Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass

Abramowicz, H.; Abt, I.; Adamczyk, L.; Adamus, M.; Aggarwal, R.; Antonelli, S.; Arslan, O.; Aushev,; Aushev, Y.; Bachynska, O.; Barakbaev, A. N.; Bartosik, N.; Behnke, O.; Behr, J.; Behrens, U.; Bertolin, A.; Bhadra, S.; Bloch, I.; Bokhonov,; Boos, E.G.; Borras, K.; Brock, I.; Brugnera, R.; Bruni, A.; Brzozowska, B.; Bussey, P.; Caldwell, A.; Capua, M.; Catterall, C. D.; Chwastowski, J. J.; Ciborowski, J.; Ciesielski, R.; Cooper-Sarkar, A.M.; Corradi, M.; Corriveau, F.; Agostini, G. D'; Dementiev, R. K.; Devenish, R.C.E.; Dolinska, G.; Drugakov,; Dusini, S.; Ferrando, J.; Figiel, J.; Foster, B.; Gach, G. P.; Garfagnini, A.; Geiser, A.; Gizhko, A.; Gladilin, L. K.; Gogota, O.; Golubkov, Ya; Grebenyuk, J.; Gregor, I. M.; Grzelak, G.; Gueta, O.; Guzik, M. P.; Hain, W.; Hartner, G.; Hochman, D.; Hori, R.; Ibrahim, Z. A.; Iga, Y.; Ishitsuka, M.; Iudin, A.; Januschek, F.; Каденко, І.; Kananov, S.; Kanno, T.; Karshon, U.; Kaur, M.; Kaur, P.; Khein, L. A.; Kisielewska, D.; Klanner, R.; Klein, U.; Kondrashova, N.; Kononenko, O.; Korol, Ie.; Korzhavina, I. A.; Kotański, A.; Kötz, U.; Kovalchuk, N.; Kowalski, H.; Kuprash, O.; Kuze, M.; Levchenko, B. B.; Levy, A.; Libov,; Limentani, S.; Lisovyi, M.; Lobodzinska, E.; Lohmann, W.; Löhr, B.; Lohrmann, E.; Longhin, A.; Lontkovskyi, D.; Lukina, O. Yu.; Maeda, J.; Makarenko, I.; Malka, J.; Martin, J. F.; Mergelmeyer, S.; Idris, F. Mohamad; Mujkic, K.; Myronenko,; Nagano, K.; Nigro, A.; Nobe, T.; Notz, D.; Nowak, R. J.; Olkiewicz, K.; Onishchuk, Y.; Paul, E.; Perlański, W.; Perrey, H.; Pokrovskiy, N. S.; Proskuryakov, A.S.; Przybycień, M.; Raval, A.; Roloff, P.; Rubinsky, I.; Ruspa, M.; Samojlov,; Saxon, D. H.; Schioppa, M.; Schmidke, W. B.; Schneekloth, U.; Schörner-Sadenius, T.; Schwartz, J.; Shcheglova, L.M.; Shehzadi, R.; Shevchenko, R.; Shkola, O.; Singh, Inderpal; Skillicorn, I. O.; Słomiński, W.; Solano, A.; Спиридонов, А.; Stančo, L.; Stefaniuk, N.; Stern, A.; Stewart, T. P.; Stopa, P.; Sztuk-Dambietz, J.; Szuba, D.; Szuba, J.; Tassi, E.; Temiraliev, T.; Tokushuku, K.; Tomaszewska, J.; Trofymov, A.; Trusov,; Tsurugai, T.; Turcato, M.; Turkot, O.; Tymieniecka, T.; Verbytskyi, A.; Viazlo, O.; Walczak, R.; Abdullah, Wat Wan; Wichmann, K.; Wing, M.; Wolf, G.; Yamada, S.; Yamazaki, Y.; Zakharchuk, N.; Żarnecki, A.F.; Zawiejski, L.; Zenaiev, O.; Zhautykov, B.O.; Zhmak, N.; Zotkin, D.S.

doi:10.1007/jhep10(2014)033

Cited by 21 publications

(13 citation statements)

References 124 publications

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“…From Eq. (31) we see that the mass splitting between right-handed charged and neutral components is proportional to 14 DM in the context of the diboson anomaly has been previously mentioned or discussed in Refs. [10,26,47,60].…”

Section: Diboson Excesssupporting

confidence: 60%

“…(HL) LHC, and up to 3 TeV at a future 100 TeV collider [14]. Roughly the same limits hold for the left-handed quintuplet [81].…”

Section: Collider Signaturesmentioning

confidence: 74%

“…The dominant W 2 decay mode Γ(W 2 → multiplet) is of course not invisible but rather leads to a (slightly) displaced vertex signature, e.g. W + 2 → χΨ + R → χχπ + [11,14]. Note that the mass splitting of charged and neutral components of Ψ R is about 1 GeV in this case, much larger than the corresponding mass splitting of Ψ L (see Fig.…”

Section: Diboson Excessmentioning

confidence: 80%

“…The idea of MDM[11][12][13][14][15][16] is to introduce multiplets to the SM that are of large enough SU (2) L dimension to forbid renormalizable couplings that could lead to decay, the prime example being a chiral fermion quintuplet without hypercharge.…”

mentioning

confidence: 99%

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Phenomenology of left-right symmetric dark matter

Garcia-Cely

Heeck

2016

J. Cosmol. Astropart. Phys.

122

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We present a detailed study of dark matter phenomenology in low-scale left-right symmetric models. Stability of new fermion or scalar multiplets is ensured by an accidental matter parity that survives the spontaneous symmetry breaking of the gauge group by scalar triplets. The relic abundance of these particles is set by gauge interactions and gives rise to dark matter candidates with masses above the electroweak scale. Dark matter annihilations are thus modified by the Sommerfeld effect, not only in the early Universe, but also today, for instance, in the Center of the Galaxy. Majorana candidates -triplet, quintuplet, bi-doublet, and bi-tripletbring only one new parameter to the model, their mass, and are hence highly testable at colliders and through astrophysical observations. Scalar candidates -doublet and 7-plet, the latter being only stable at the renormalizable level -have additional scalar-scalar interactions that give rise to rich phenomenology. The particles under discussion share many features with the well-known candidates wino, Higgsino, inert doublet scalar, sneutrino, and Minimal Dark Matter. In particular, they all predict a large gamma-ray flux from dark matter annihilations, which can be searched for with Cherenkov telescopes. We furthermore discuss models with unequal left-right gauge couplings, g R = g L , taking the recent experimental hints for a charged gauge boson with 2 TeV mass as a benchmark point. In this case, the dark matter mass is determined by the observed relic density. * Electronic address: Camilo.Alfredo. Garcia.Cely@ulb.ac.be † Electronic address: Julian.Heeck@ulb.ac.be arXiv:1512.03332v2 [hep-ph] 9 Mar 2016 14 4. Collider signatures 15 B. Bi-doublet (2, 2, 0) 15 1. Relic density and indirect detection 17 2. Bi-doublet decays 18 C. Bi-triplet (3, 3, 0) 19 V. Scalar dark matter 21 A. 7-plet (7, 1, 0) ⊕ (1, 7, 0) 21 B. Inert doublet (2, 1, −1) ⊕ (1, 2, −1) 24 VI. Diboson excess 26 A. Diboson excess with g R < g L 26 B. Diboson excess with g R = g L 29 VII. Conclusion 31 Acknowledgements 32 A. Gauge boson masses and decay rates for g L = g R 32 1. Gauge boson masses and mixing 33 2. Gauge boson decay rates 34 B. Real representations of SU (2) 36 C. Mass splitting 37 D. Sommerfeld effect in the center of the galaxy 38E. Relic density in the SU (2) L symmetric limit 41 1. Scalar and fermionic multiplets (2n + 1, 1, 0) ⊕ (1, 2n + 1, 0) 43 2. Chiral bi-multiplets (n, n, 0) 47References 49

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Section: Diboson Excesssupporting

confidence: 60%

“…(HL) LHC, and up to 3 TeV at a future 100 TeV collider [14]. Roughly the same limits hold for the left-handed quintuplet [81].…”

Section: Collider Signaturesmentioning

confidence: 74%

Section: Diboson Excessmentioning

confidence: 80%

mentioning

confidence: 99%

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Phenomenology of left-right symmetric dark matter

Garcia-Cely

Heeck

2016

J. Cosmol. Astropart. Phys.

122

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“…-LHC: The current lower limit on the wino mass is 460 GeV [80], and future limits can be found in Refs. [74,81]. The LHC will not be able to probe the relic-density motivated region m DM ∼ 2.7 TeV, but a 100 TeV collider might.…”

Section: A Lr Bi-doubletmentioning

confidence: 99%

SO(10) paths to dark matter

et al. 2019

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The grand-unification gauge group SO(10) contains matter parity as a discrete subgroup. This symmetry could be at the origin of dark matter stability. The properties of the dark matter candidates depend on the path along which SO(10) is broken, in particular through Pati-Salam or left-right symmetric subgroups. We systematically determine the non-supersymmetric dark matter scenarios that can be realized along the various paths. We emphasize that the dark matter candidates may have colored or electrically charged partners at low scale that belong to the same SO(10) multiplet. These states, which in many cases are important for co-annihilation, could be observed more easily than the dark matter particle. We determine the structure of the tree-level and loop-induced mass splittings between the dark matter candidate and their partners and discuss the possible phenomenological implications. CONTENTS

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Hunting wino and higgsino dark matter at the muon collider with disappearing tracks

Capdevilla

Meloni

Simoniello

et al. 2021

J. High Energ. Phys.

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We study the capabilities of a muon collider experiment to detect disappearing tracks originating when a heavy and electrically charged long-lived particle decays via X+→ Y+Z0, where X+ and Z0 are two almost mass degenerate new states and Y+ is a charged Standard Model particle. The backgrounds induced by the in-flight decays of the muon beams (BIB) can create detector hit combinations that mimic long-lived particle signatures, making the search a daunting task. We design a simple strategy to tame the BIB, based on a detector-hit-level selection exploiting timing information and hit-to-hit correlations, followed by simple requirements on the quality of reconstructed tracks. Our strategy allows us to reduce the number of tracks from BIB to an average of 0.08 per event, hence being able to design a cut-and-count analysis that shows that it is possible to cover weak doublets and triplets with masses close to $$ \sqrt{s}/2 $$ s / 2 in the 0.1–10 ns range. In particular, this implies that a 10 TeV muon collider is able to probe thermal MSSM higgsinos and thermal MSSM winos, thus rivaling the FCC-hh in that respect, and further enlarging the physics program of the muon collider into the territory of WIMP dark matter and long-lived signatures. We also provide parton-to-reconstructed level efficiency maps, allowing an estimation of the coverage of disappearing tracks at muon colliders for arbitrary models.

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Measurement of beauty and charm production in deep inelastic scattering at HERA and measurement of the beauty-quark mass

Cited by 21 publications

References 124 publications

Phenomenology of left-right symmetric dark matter

Phenomenology of left-right symmetric dark matter

SO(10) paths to dark matter

Hunting wino and higgsino dark matter at the muon collider with disappearing tracks

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