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42 results on '"Rehn J"'

2. A fractionalised '$\mathbb{Z}_2$' classical Heisenberg spin liquid

Author

Rehn, J., Sen, Arnab, and Moessner, R.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

Quantum spin systems are by now known to exhibit a large number of different classes of spin liquid phases. By contrast, for \textit{classical} Heisenberg models, only one kind of fractionalised spin liquid phase, the so-called Coulomb or $U(1)$ spin liquid, has until recently been identified: this exhibits algebraic spin correlations and impurity moments, `orphan spins', whose size is a fraction of that of the underlying microscopic degrees of freedom. Here, we present two Heisenberg models exhibiting fractionalisation in combination with exponentially decaying correlations. These can be thought of as a classical continuous spin version of a $\mathbb{Z}_2$ spin liquid. Our work suggests a systematic search and classification of classical spin liquids as a worthwhile endeavour., Comment: 5 pages, 7 figures

Published
2016
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3. Spin glass behavior in a random Coulomb antiferromagnet

Author

Rehn, J., Moessner, R., and Young, A. P.

Subjects
Condensed Matter - Disordered Systems and Neural Networks, Condensed Matter - Statistical Mechanics
Abstract

We study spin glass behavior in a random Ising Coulomb antiferromagnet in two and three dimensions using Monte Carlo simulations. In two dimensions, we find a transition at zero temperature with critical exponents consistent with those of the Edwards Anderson model, though with large uncertainties. In three dimensions, evidence for a finite-temperature transition, as occurs in the Edwards-Anderson model, is rather weak. This may indicate that the sizes are too small to probe the asymptotic critical behavior, or possibly that the universality class is different from that of the Edwards-Anderson model and has a lower critical dimension equal to three., Comment: 7 pages, 9 figures

Published
2016
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4. Maxwell electromagnetism as an emergent phenomenon in condensed matter

Author

Rehn, J. and Moessner, R.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

The formulation of a complete theory of classical electromagnetism by Maxwell is one of the milestones of science. The capacity of many-body systems to provide emergent mini-universes with vacua quite distinct from the one we inhabit was only recognised much later. Here, we provide an account of how simple systems of localised spins manage to emulate Maxwell electromagnetism in their low-energy behaviour. They are much less constrained by symmetry considerations than the relativistically invariant electromagnetic vacuum, as their substrate provides a non-relativistic background with even translational invariance broken. They can exhibit rich behaviour not encountered in conventional electromagnetism. This includes the existence of magnetic monopole excitations arising from fractionalisation of magnetic dipoles; as well as the capacity of disorder, by generating defects on the lattice scale, to produce novel physics, as exemplified by topological spin glassiness or random Coulomb magnetism., Comment: Talk at Royal Society Symposium, "Unifying Physics and Technology in the Light of Maxwell's Equations", November 2015

Published
2016
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5. Classical spin-liquid on the maximally frustrated honeycomb lattice

Author

Rehn, J., Sen, Arnab, Damle, Kedar, and Moessner, R.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

We show that the honeycomb Heisenberg antiferromagnet with $J_1/2=J_2=J_3$, where $J_{1/2/3}$ are first-, second- and third-neighbour couplings respectively, forms a classical spin liquid with pinch-point singularities in the structure factor at the Brillouin zone corners. Upon dilution with non-magnetic ions, fractionalised degrees of freedom carrying $1/3$ of the free moment emerge. Their effective description in the limit of low-temperature is that of spins randomly located on a triangular lattice, with a frustrated interaction of long-ranged logarithmic form. The XY version of this magnet exhibits nematic thermal order by disorder, which comes with a clear experimental diagnostic., Comment: 5 pages, 4 figures

Published
2015
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6. Random Coulomb antiferromagnets: from diluted spin liquids to Euclidean random matrices

Author

Rehn, J., Sen, Arnab, Andreanov, Alexei, Damle, Kedar, Moessner, R., and Scardicchio, A.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

We study a disordered classical Heisenberg magnet with uniformly antiferromagnetic interactions which are frustrated on account of their long-range Coulomb form, {\em i.e.} $J(r)\sim -A\ln r$ in $d=2$ and $J(r)\sim A/r$ in $d=3$. This arises naturally as the $T\rightarrow 0$ limit of the emergent interactions between vacancy-induced degrees of freedom in a class of diluted Coulomb spin liquids (including the classical Heisenberg antiferromagnets on checkerboard, SCGO and pyrochlore lattices) and presents a novel variant of a disordered long-range spin Hamiltonian. Using detailed analytical and numerical studies we establish that this model exhibits a very broad paramagnetic regime that extends to very large values of $A$ in both $d=2$ and $d=3$. In $d=2$, using the lattice-Green function based finite-size regularization of the Coulomb potential (which corresponds naturally to the underlying low-temperature limit of the emergent interactions between orphan-spins), we only find evidence that freezing into a glassy state occurs in the limit of strong coupling, $A=\infty$, while no such transition seems to exist at all in $d=3$. We also demonstrate the presence and importance of screening for such a magnet. We analyse the spectrum of the Euclidean random matrices describing a Gaussian version of this problem, and identify a corresponding quantum mechanical scattering problem., Comment: two-column PRB format; 17 pages; 24 .eps figures

Published
2015
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11. Enhancer retargeting of CDX2 and UBTF::ATXN7L3 define a subtype of high-risk B-progenitor acute lymphoblastic leukemia

Author

Kimura, S, Montefiori, L, Iacobucci, I, Zhao, Y, Gao, Q, Paietta, EM, Haferlach, C, Laird, AD, Mead, PE, Gu, Z, Stock, W, Litzow, M, Rowe, JM, Luger, SM, Hunger, SP, Ryland, GL, Schmidt, B, Ekert, PG, Oshlack, A, Grimmond, SM, Rehn, J, Breen, J, Yeung, D, White, DL, Aldoss, I, Jabbour, EJ, Pui, C-H, Meggendorfer, M, Walter, W, Kern, W, Haferlach, T, Brady, S, Zhang, J, Roberts, KG, Blombery, P, Mullighan, CG, Kimura, S, Montefiori, L, Iacobucci, I, Zhao, Y, Gao, Q, Paietta, EM, Haferlach, C, Laird, AD, Mead, PE, Gu, Z, Stock, W, Litzow, M, Rowe, JM, Luger, SM, Hunger, SP, Ryland, GL, Schmidt, B, Ekert, PG, Oshlack, A, Grimmond, SM, Rehn, J, Breen, J, Yeung, D, White, DL, Aldoss, I, Jabbour, EJ, Pui, C-H, Meggendorfer, M, Walter, W, Kern, W, Haferlach, T, Brady, S, Zhang, J, Roberts, KG, Blombery, P, and Mullighan, CG

Abstract

Transcriptome sequencing has identified multiple subtypes of B-progenitor acute lymphoblastic leukemia (B-ALL) of prognostic significance, but a minority of cases lack a known genetic driver. Here, we used integrated whole-genome (WGS) and -transcriptome sequencing (RNA-seq), enhancer mapping, and chromatin topology analysis to identify previously unrecognized genomic drivers in B-ALL. Newly diagnosed (n = 3221) and relapsed (n = 177) B-ALL cases with tumor RNA-seq were studied. WGS was performed to detect mutations, structural variants, and copy number alterations. Integrated analysis of histone 3 lysine 27 acetylation and chromatin looping was performed using HiChIP. We identified a subset of 17 newly diagnosed and 5 relapsed B-ALL cases with a distinct gene expression profile and 2 universal and unique genomic alterations resulting from aberrant recombination-activating gene activation: a focal deletion downstream of PAN3 at 13q12.2 resulting in CDX2 deregulation by the PAN3 enhancer and a focal deletion of exons 18-21 of UBTF at 17q21.31 resulting in a chimeric fusion, UBTF::ATXN7L3. A subset of cases also had rearrangement and increased expression of the PAX5 gene, which is otherwise uncommon in B-ALL. Patients were more commonly female and young adult with median age 35 (range,12-70 years). The immunophenotype was characterized by CD10 negativity and immunoglobulin M positivity. Among 16 patients with known clinical response, 9 (56.3%) had high-risk features including relapse (n = 4) or minimal residual disease >1% at the end of remission induction (n = 5). CDX2-deregulated, UBTF::ATXN7L3 rearranged (CDX2/UBTF) B-ALL is a high-risk subtype of leukemia in young adults for which novel therapeutic approaches are required.

Published
2022

12. Multi-cohort transcriptomic subtyping of B-cell acute lymphoblastic leukemia

Author

Mäkinen, V.-P. (Ville-Petteri), Rehn, J. (Jacqueline), Breen, J. (James), Yeung, D. (David), White, D. L. (Deborah L.), Mäkinen, V.-P. (Ville-Petteri), Rehn, J. (Jacqueline), Breen, J. (James), Yeung, D. (David), and White, D. L. (Deborah L.)

Abstract

RNA sequencing provides a snapshot of the functional consequences of genomic lesions that drive acute lymphoblastic leukemia (ALL). The aims of this study were to elucidate diagnostic associations (via machine learning) between mRNA-seq profiles, independently verify ALL lesions and develop easy-to-interpret transcriptome-wide biomarkers for ALL subtyping in the clinical setting. A training dataset of 1279 ALL patients from six North American cohorts was used for developing machine learning models. Results were validated in 767 patients from Australia with a quality control dataset across 31 tissues from 1160 non-ALL donors. A novel batch correction method was introduced and applied to adjust for cohort differences. Out of 18,503 genes with usable expression, 11,830 (64%) were confounded by cohort effects and excluded. Six ALL subtypes (ETV6::RUNX1, KMT2A, DUX4, PAX5 P80R, TCF3::PBX1, ZNF384) that covered 32% of patients were robustly detected by mRNA-seq (positive predictive value ≥ 87%). Five other frequent subtypes (CRLF2, hypodiploid, hyperdiploid, PAX5 alterations and Ph-positive) were distinguishable in 40% of patients at lower accuracy (52% ≤ positive predictive value ≤ 73%). Based on these findings, we introduce the Allspice R package to predict ALL subtypes and driver genes from unadjusted mRNA-seq read counts as encountered in real-world settings. Two examples of Allspice applied to previously unseen ALL patient samples with atypical lesions are included.

Published
2022

17. Final results from DELPHI on the searches for SM and MSSM neutral Higgs bosons

Author

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., Alemany Fernandez, R., Allmendinger, T., Allport, P., Amaldi, U., Amapane, N., Amato, S., Anashkin, E., Andreazza, A., Andringa, S., Anjos, N., Antilogus, P., Apel, W., Arnoud, Y., Ask, S., Asman, B., Augustin, J., Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barbier, R., Bardin, D., Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K., Begalli, M., Behrmann, A., Ben Haim, E., Benekos, N., Benvenuti, A., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Besson, N., Bloch, D., Blom, M., Bluj, M., Bonesini, M., Boonekamp, M., Booth, P., Borisov, G., Botner, O., Bouquet, B., Bowcock, T., Boyko, I., Bracko, M., Brenner, R., Brodet, E., Bruckman, P., Brunet, J., Bugge, L., Buschmann, P., Calvi, M., Camporesi, T., Canale, V., Carena, F., Castro, N., Cavallo, F., Chapkin, M., Charpentier, P., Checchia, P., Chierici, R., Chliapnikov, P., Chudoba, J., Chung, S., Cieslik, K., Collins, P., Contri, R., Cosme, G., Cossutti, F., Costa, M., Crawley, B., Crennell, D., Cuevas, J., D'Hondt, J., Dalmau, J., Silva, T. d., Silva, W. D., Ricca, G. D., Angelis, A. D., Boer, W. D., Clercq, C. D., Lotto, B. D., Maria, N. D., Min, A. D., Paula, L. d., Ciaccio, L. D., Simone, A. D., Doroba, K., Drees, J., Dris, M., Eigen, G., Ekelof, T., Ellert, M., Elsing, M., Santo, M., Fanourakis, G., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferro, F., Flagmeyer, U., Foeth, H., Fokitis, E., Fulda Quenzer, F., Fuster, J., Gandelman, M., Garcia, C., Gavillet, P., Gazis, E., Gokieli, R., Golob, B., Gomez Ceballos, G., Goncalves, P., Graziani, E., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hallgren, A., Hamacher, K., Hamilton, K., Hansen, J., Haug, S., Hauler, F., Hedberg, V., Hennecke, M., Herr, H., Hoffman, J., Holmgren, S., Holt, P., Houlden, M., Hultqvist, K., Jackson, J., Jarlskog, G., Jarry, P., Jeans, D., Johansson, E., Johansson, P., Jonsson, P., Joram, C., Jungermann, L., Kapusta, F., Katsanevas, S., Katsoufis, E., Kernel, G., Kersevan, B., Kiiskinen, A., King, B., Kjaer, N., Kluit, P., Kokkinias, P., Kourkoumelis, C., Kouznetsov, O., Krumstein, Z., Kucharczyk, M., Lamsa, J., Leder, G., Ledroit, F., Leinonen, L., Leitner, R., Lemonne, J., Lepeltier, V., Lesiak, T., Liebig, W., Liko, D., Lipniacka, A., Lopes, J., Lopez, J., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Malek, A., Maltezos, S., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J., Mariotti, C., Markou, A., Martinez Rivero, C., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Mazzucato, F., Mazzucato, M., Nulty, R. M., Meroni, C., Meyer, W., Migliore, E., Mitaroff, W., Mjoernmark, U., Moa, T., Moch, M., Moenig, K., Monge, MARIA ROBERTA, Montenegro, J., Moraes, D., Moreno, S., Morettini, P., Mueller, U., Muenich, K., Mulders, M., Mundim, L., Murray, W., Muryn, B., Myatt, G., Myklebust, T., Nassiakou, M., Navarria, F., Nawrocki, K., Nicolaidou, R., Nikolenko, M., Oblakowska Mucha, A., Obraztsov, V., Olshevski, A., Onofre, A., Orava, R., Osterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Palacios, J., Palka, H., Papadopoulou, T., Pape, L., Parkes, C., Parodi, Fabrizio, Parzefall, U., Passeri, A., Passon, O., Peralta, L., Perepelitsa, V., Perrotta, A., Petrolini, Alessandro, Piedra, J., Pieri, L., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M., Polok, G., Poropat, P., Pozdniakov, V., Pukhaeva, N., Pullia, A., Rames, J., Ramler, L., Read, A., Rebecchi, P., Rehn, J., Reid, D., Reinhardt, R., Renton, P., Richard, F., Ridky, J., Rivero, M., Rodriguez, D., Romero, A., Ronchese, P., Rosenberg, E., Roudeau, P., Rovelli, T., Ruhlmann Kleider, V., Ryabtchikov, D., Sadovsky, A., Salmi, L., Salt, J., Savoy Navarro, A., Schwickerath, U., Segar, A., Sekulin, R., Siebel, M., Sisakian, A., Smadja, G., Smirnova, O., Sokolov, A., Sopczak, A., Sosnowski, R., Spassov, T., Stanitzki, M., Stocchi, A., Strauss, J., Stugu, B., Szczekowski, M., Szeptycka, M., Szumlak, T., Tabarelli, T., Taffard, A., Tegenfeldt, F., Timmermans, J., Tkatchev, L., Tobin, M., Todorovova, S., Tome, B., Tonazzo, A., Tortosa, P., Travnicek, P., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M., Tyapkin, I., Tyapkin, P., Tzamarias, S., Uvarov, V., Valenti, G., Dam, P. V., Eldik, J. V., Lysebetten, A. V., Remortel, N. v., Vulpen, I. V., Vegni, G., Veloso, F., Venus, W., Verbeure, F., Verdier, P., Verzi, V., Vilanova, D., Vitale, L., Vrba, V., Wahlen, H., Washbrook, A., Weiser, C., Wicke, D., Wickens, J., Wilkinson, G., Winter, M., Witek, M., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zhuravlov, V., Zimin, N., Zintchenko, A., Zupan, M., Collaboration, D., DELPHI Collaboration, Abdallah, J, Abreu, P, Adam, W, Adzic, P, Albrecht, T, Alderweireld, T, ALEMANY FERNANDEZ, R, Allmendinger, T, Allport, P, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Ask, S, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, BEN HAIM, E, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bloch, D, Blom, M, Bluj, M, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Botner, O, Bouquet, B, Bowcock, T, Boyko, I, Bracko, M, Brenner, R, Brodet, E, Bruckman, P, Brunet, J, Bugge, L, Buschmann, P, Calvi, M, Camporesi, T, Canale, V, Carena, F, Castro, N, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chierici, R, Chliapnikov, P, Chudoba, J, Chung, S, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, M, Crawley, B, Crennell, D, Cuevas, J, D'Hondt, J, Dalmau, J, DA SILVA, T, DA SILVA, W, DELLA RICCA, G, DE ANGELIS, A, DE BOER, W, DE CLERCQ, C, DE LOTTO, B, DE MARIA, N, DE MIN, A, DE PAULA, L, DI CIACCIO, L, DI SIMONE, A, Doroba, K, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferro, F, Flagmeyer, U, Foeth, H, Fokitis, E, FULDA QUENZER, F, Fuster, J, Gandelman, M, Garcia, C, Gavillet, P, Gazis, E, Gokieli, R, Golob, B, GOMEZ CEBALLOS, G, Goncalves, P, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hallgren, A, Hamacher, K, Hamilton, K, Hansen, J, Haug, S, Hauler, F, Hedberg, V, Hennecke, M, Herr, H, Hoffman, J, Holmgren, S, Holt, P, Houlden, M, Hultqvist, K, Jackson, J, Jarlskog, G, Jarry, P, Jeans, D, Johansson, E, Johansson, P, Jonsson, P, Joram, C, Jungermann, L, Kapusta, F, Katsanevas, S, Katsoufis, E, Kernel, G, Kersevan, B, Kiiskinen, A, King, B, Kjaer, N, Kluit, P, Kokkinias, P, Kourkoumelis, C, Kouznetsov, O, Krumstein, Z, Kucharczyk, M, Lamsa, J, Leder, G, Ledroit, F, Leinonen, L, Leitner, R, Lemonne, J, Lepeltier, V, Lesiak, T, Liebig, W, Liko, D, Lipniacka, A, Lopes, J, Lopez, J, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Malek, A, Maltezos, S, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, MARTINEZ RIVERO, C, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Mazzucato, F, Mazzucato, M, MC NULTY, R, Meroni, C, Meyer, W, Migliore, E, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, R, Montenegro, J, Moraes, D, Moreno, S, Morettini, P, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Nicolaidou, R, Nikolenko, M, OBLAKOWSKA MUCHA, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Perrotta, A, Petrolini, A, Piedra, J, Pieri, L, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Pukhaeva, N, Pullia, A, Rames, J, Ramler, L, Read, A, Rebecchi, P, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Richard, F, Ridky, J, Rivero, M, Rodriguez, D, Romero, A, Ronchese, P, Rosenberg, E, Roudeau, P, Rovelli, T, RUHLMANN KLEIDER, V, Ryabtchikov, D, Sadovsky, A, Salmi, L, Salt, J, SAVOY NAVARRO, A, Schwickerath, U, Segar, A, Sekulin, R, Siebel, M, Sisakian, A, Smadja, G, Smirnova, O, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Stanitzki, M, Stocchi, A, Strauss, J, Stugu, B, Szczekowski, M, Szeptycka, M, Szumlak, T, Tabarelli, T, Taffard, A, Tegenfeldt, F, Timmermans, J, Tkatchev, L, Tobin, M, Todorovova, S, Tome, B, Tonazzo, A, Tortosa, P, Travnicek, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Uvarov, V, Valenti, G, VAN DAM, P, VAN ELDIK, J, VAN LYSEBETTEN, A, VAN REMORTEL, N, VAN VULPEN, I, Vegni, G, Veloso, F, Venus, W, Verbeure, F, Verdier, P, Verzi, V, Vilanova, D, Vitale, L, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zhuravlov, V, Zimin, N, Zintchenko, A, Zupan, M, J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, T. ALDERWEIRELD, R. ALEMANY-FERNANDEZ, T. ALLMENDINGER, P.P. ALLPORT, U. AMALDI, N. AMAPANE, S. AMATO, E. ANASHKIN, A. ANDREAZZA, S. ANDRINGA, N. ANJOS, P. ANTILOGUS, W.D. APEL, Y. ARNOUD, S. ASK, B. ASMAN, J.E. AUGUSTIN, A. AUGUSTINUS, P. BAILLON, A. BALLESTRERO, P. BAMBADE, R. BARBIER, D. BARDIN, G.J. BARKER, A. BARONCELLI, M. BATTAGLIA, M. BAUBILLIER, K.H. BECKS, M. BEGALLI, A. BEHRMANN, E. BEN-HAIM, N. BENEKOS, A. BENVENUTI, C. BERAT, M. BERGGREN, L. BERNTZON, D. BERTRAND, M. BESANCON, N. BESSON, D. BLOCH, M. BLOM, M. BLUJ, M. BONESINI, M. BOONEKAMP, P.S.L. BOOTH, G. BORISOV, O. BOTNER, B. BOUQUET, T.J.V. BOWCOCK, I. BOYKO, M. BRACKO, R. BRENNER, E. BRODET, P. BRUCKMAN, J.M. BRUNET, L. BUGGE, P. BUSCHMANN, M. CALVI, T. CAMPORESI, V. CANALE, F. CARENA, N. CASTRO, F. CAVALLO, M. CHAPKIN, P. CHARPENTIER, P. CHECCHIA, R. CHIERICI, P. CHLIAPNIKOV, J. CHUDOBA, S.U. CHUNG, K. CIESLIK, P. COLLINS, R. CONTRI, G. COSME, F. COSSUTTI, M.J. COSTA, B. CRAWLEY, D. CRENNELL, J. CUEVAS, J. D'HONDT, J. DALMAU, T. DA SILVA, W. DA SILVA, G. DELLA RICCA, A. DE ANGELIS, W. DE BOER, C. DE CLERCQ, B. DE LOTTO, N. DE MARIA, A. DE MIN, L. DE PAULA, L. DI CIACCIO, A. DI SIMONE, K. DOROBA, J. DREES, M. DRIS, G. EIGEN, T. EKELOF, M. ELLERT, M. ELSING, M.C. ESPIRITO SANTO, G. FANOURAKIS, D. FASSOULIOTIS, M. FEINDT, J. FERNANDEZ, A. FERRER, F. FERRO, U. FLAGMEYER, H. FOETH, E. FOKITIS, F. FULDA-QUENZER, J. FUSTER, M. GANDELMAN, C. GARCIA, P. GAVILLET, E. GAZIS, R. GOKIELI, B. GOLOB, G. GOMEZ-CEBALLOS, P. GONCALVES, E. GRAZIANI, G. GROSDIDIER, K. GRZELAK, J. GUY, C. HAAG, A. HALLGREN, K. HAMACHER, K. HAMILTON, J. HANSEN, S. HAUG, F. HAULER, V. HEDBERG, M. HENNECKE, H. HERR, J. HOFFMAN, S.O. HOLMGREN, P.J. HOLT, M.A. HOULDEN, K. HULTQVIST, J.N. JACKSON, G. JARLSKOG, P. JARRY, D. JEANS, E.K. JOHANSSON, P.D. JOHANSSON, P. JONSSON, C. JORAM, L. JUNGERMANN, FREDERIC KAPUSTA, S. KATSANEVAS, E. KATSOUFIS, G. KERNEL, B.P. KERSEVAN, A. KIISKINEN, B.T. KING, N.J. KJAER, P. KLUIT, P. KOKKINIAS, C. KOURKOUMELIS, O. KOUZNETSOV, Z. KRUMSTEIN, M. KUCHARCZYK, J. LAMSA, G. LEDER, F. LEDROIT, L. LEINONEN, R. LEITNER, J. LEMONNE, V. LEPELTIER, T. LESIAK, W. LIEBIG, D. LIKO, A. LIPNIACKA, J.H. LOPES, J.M. LOPEZ, D. LOUKAS, P. LUTZ, L. LYONS, J. MACNAUGHTON, A. MALEK, S. MALTEZOS, F. MANDL, J. MARCO, R. MARCO, B. MARECHAL, M. MARGONI, J.C. MARIN, C. MARIOTTI, A. MARKOU, C. MARTINEZ-RIVERO, J. MASIK, N. MASTROYIANNOPOULOS, F. MATORRAS, C. MATTEUZZI, F. MAZZUCATO, M. MAZZUCATO, R. MCNULTY, C. MERONI, W.T. MEYER, E. MIGLIORE, W. MITAROFF, U. MJOERNMARK, T. MOA, M. MOCH, K. MOENIG, R. MONGE, J. MONTENEGRO, D. MORAES, S. MORENO, P. MORETTINI, U. MUELLER, K. MUENICH, M. MULDERS, L. MUNDIM, W. MURRAY, B. MURYN, G. MYATT, T. MYKLEBUST, M. NASSIAKOU, F. NAVARRIA, K. NAWROCKI, R. NICOLAIDOU, M. NIKOLENKO, A. OBLAKOWSKA-MUCHA, V. OBRAZTSOV, A. OLSHEVSKI, A. ONOFRE, R. ORAVA, K. OSTERBERG, A. OURAOU, A. OYANGUREN, M. PAGANONI, S. PAIANO, J.P. PALACIOS, H. PALKA, T.D. PAPADOPOULOU, L. PAPE, C. PARKES, F. PARODI, U. PARZEFALL, A. PASSERI, O. PASSON, L. PERALTA, V. PEREPELITSA, A. PERROTTA, A. PETROLINI, J. PIEDRA, L. PIERI, F. PIERRE, M. PIMENTA, E. PIOTTO, T. PODOBNIK, V. POIREAU, M.E. POL, G. POLOK, P. POROPAT, V. POZDNIAKOV, N. PUKHAEVA, A. PULLIA, J. RAMES, L. RAMLER, ALEXANDER L. READ, P. REBECCHI, J. REHN, D. REID, R. REINHARDT, P. RENTON, F. RICHARD, J. RIDKY, M. RIVERO, D. RODRIGUEZ, A. ROMERO, P. RONCHESE, E. ROSENBERG, P. ROUDEAU, T. ROVELLI, V. RUHLMANN-KLEIDER, D. RYABTCHIKOV, A. SADOVSKY, L. SALMI, J. SALT, A. SAVOY-NAVARRO, U. SCHWICKERATH, A. SEGAR, R. SEKULIN, M. SIEBEL, A. SISAKIAN, G. SMADJA, O. SMIRNOVA, A. SOKOLOV, A. SOPCZAK, R. SOSNOWSKI, T. SPASSOV, M. STANITZKI, A. STOCCHI, J. STRAUSS, B. STUGU, M. SZCZEKOWSKI, M. SZEPTYCKA, T. SZUMLAK, T. TABARELLI, A.C. TAFFARD, F. TEGENFELDT, J. TIMMERMANS, L. TKATCHEV, M. TOBIN, S. TODOROVOVA, B. TOME, A. TONAZZO, P. TORTOSA, P. TRAVNICEK, D. TREILLE, G. TRISTRAM, M. TROCHIMCZUK, C. TRONCON, M.L. TURLUER, I.A. TYAPKIN, P. TYAPKIN, S. TZAMARIAS, V. UVAROV, G. VALENTI, P. VAN DAM, J. VAN ELDIK, A. VAN LYSEBETTEN, N. VAN REMORTEL, I. VAN VULPEN, G. VEGNI, F. VELOSO, W. VENUS, F. VERBEURE, P. VERDIER, V. VERZI, D. VILANOVA, L. VITALE, V. VRBA, H. WAHLEN, A.J. WASHBROOK, C. WEISER, D. WICKE, J. WICKENS, G. WILKINSON, M. WINTER, M. WITEK, O. YUSHCHENKO, A. ZALEWSKA, P. ZALEWSKI, D. ZAVRTANIK, V. ZHURAVLOV, N.I. ZIMIN, A. ZINTCHENKO, M. ZUPAN, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), DELPHI, Student Lab and Education, (Astro)-Particles Physics, Faculty of Sciences, Finance, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Delphi (IHEF, IoP, FNWI)

Subjects
Particle physics, Physics and Astronomy (miscellaneous), LOWEST ORDER CALCULATIONS, Scalar (mathematics), MONTE-CARLO SIMULATION, STANDARD MODEL, FOS: Physical sciences, 2-PHOTON PROCESSES, MSSM HIGGS, 01 natural sciences, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), E(+)E(-) COLLISIONS, SEARCH, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], RADIATIVE-CORRECTIONS, PROGRAM KORALZ, 010306 general physics, Engineering (miscellaneous), QC, computer.programming_language, Boson, DELPHI, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, QUARK PAIR PRODUCTION, LEP/SLC ENERGIES, ROOT-S=183 GEV, LEP, LARGE ELECTRON POSITRON COLLIDER, 3. Good health, Higgs Boson, Electroweak Physiscs, LEP experiments, FIS/01 - FISICA SPERIMENTALE, SM HIGGS, PARTICLE PHYSICS, Higgs boson, High Energy Physics::Experiment, computer, Delphi, Particle Physics - Experiment, Minimal Supersymmetric Standard Model
Abstract

These final results from DELPHI searches for the Standard Model (SM) Higgs boson, together with benchmark scans of the Minimal Supersymmetric Standard Model (MSSM) neutral Higgs bosons, used data taken at centre-of-mass energies between 200 and 209 GeV with a total integrated luminosity of 224 pb^-1. The data from 192 to 202 GeV are reanalysed with improved b-tagging for MSSM final states decaying to four b-quarks. The 95% confidence level lower mass bound on the Standard Model Higgs boson is 114.1 GeV/c2. Limits are also given on the lightest scalar and pseudo-scalar Higgs bosons of the MSSM., 69 pages, 31 figures, journal version; minor text changes, figure 24 added

Published
2016

18. A measurement of the Tau topological branching ratios

Author

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, G. D., Alemany, R., Allmendinger, T., Allport, P. P., Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anashkin, E., Anassontzis, E. G., Andersson, P., Andreazza, A., Andringa, S., Anjos, N., Antilogus, P., Apel, W. D., Arnoud, Y., Asman, B., Augustin, J. -E, Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, Guido, Barbier, R., Bardin, D. Yu, Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, K. H., Begalli, M., Behrmann, A., Bellunato, T. F., Belokopytov, Yu, Belous, K., Benekos, N. C., Benvenuti, A. C., Berat, C., Berggren, M., Berntzon, L., Bertrand, D., Besancon, M., Besson, N., Bilenkii, M. S., Bloch, D., Blom, H. M., Bol, L., Bonesini, M., Boonekamp, M., Booth, P. S. L., Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bowcock, T. J. V., Boyko, I., Bozovic, I., Bracko, M., Branchini, P., Brenner, R. A., Brueckman, P., Brunet, J. M., Bugge, L., Buschmann, P., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Castillo-Gimenez, M. V., Cattai, A., Cavallo, F. R., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, G. A., Chierici, R., Shlyapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Costa, M., Crawley, H. B., Crennell, D., Croix, J., Crosetti, G., Cuevas-Maestro, J., Czellar, S., D Hondt, J., Dalmau, J., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P. A., Demaria, N., Angelis, A., Boer, W., Clercq, C., Lotto, B., Min, A., Paula, L. S., Dijkstra, H., Di Ciaccio, L., Doroba, K., Dracos, M., Drees, J., Dris, M., Eigen, G., Ekeloef, T., Ellert, M., Elsing, M., Engel, J. P., Espirito-Santo, M. C., Fanourakis, G. K., Fassouliotis, D., Feindt, M., Fernandez, J., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B. J., Frodesen, A. G., Fruehwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, E. N., Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Gonzalez-Caballero, I., Gopal, G., Gorn, L., Guz, Yu, Gracco, V., Grahl, J., Graziani, E., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, F. J., Haug, S., Hauler, F., Hedberg, V., Heising, S., Hernandez, J. J., Herquet, P., Herr, H., Hertz, O., Higon, E., Holmgren, S. O., Holt, P. J., Hoorelbeke, S., Houlden, M., Hrubec, J., Hughes, G. J., Hultqvist, K., Jackson, J. N., Jacobsson, R., Jalocha, P., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, E. K., Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, E. C., Keraenen, R., Kernel, G., Kersevan, B. P., Khokhlov, Yu, Khomenko, B. A., Khovanskii, N. N., Kiiskinen, A. P., King, B. J., Kinvig, A., Kjaer, N. J., Klapp, O., Kluit, P. M., Kokkinias, P., Kostyukhin, V., Kourkoumelis, C., Kuznetsov, O., Krammer, M., Kriznic, E., Krumshtein, Z., Kubinec, P., Kucharczyk, M., Kurowska, J., Lamsa, J. W., Laugier, J. P., Leder, G., Ledroit, F., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loken, J. G., Lopes, J. H., Lopez, J. M., Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, J. R., Maio, A., Malek, A., Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, J. C., Mariotti, C., Markou, A., Martinez-Rivero, C., Marti, I. Garcia S., Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mccubbin, M. L., Mckay, R., Mcnulty, R., Mcpherson, G., Merle, E., Meroni, C., Meyer, W. T., Migliore, E., Mirabito, L., Mitaroff, W. A., Mjoernmark, U., Moa, T., Moch, M., Moenig, K., Monge, M. R., Montenegro, J., Moraes, D., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mundim, L. M., Murray, W. J., Muryn, B., Myatt, G., Myklebust, T., Nassiakou, M., Francesco Luigi Navarria, Nawrocki, K., Negri, P., Nemecek, S., Neufeld, N., Nicolaidou, R., Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V. F., Olshevskii, A. G., Onofre, A., Orava, R., Oesterberg, K., Ouraou, A., Oyanguren, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, T. D., Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Peralta, L., Perepelitsa, V., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, H. T., Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Poireau, V., Pol, M. E., Polok, G., Poropat, P., Pozdnyakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Read, A. L., Rebecchi, P., Redaelli, N. G., Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, P. B., Resvanis, L. K., Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Romero, A., Ronchese, P., Rosenberg, E. I., Rosinsky, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovskii, A., Sajot, G., Salmi, L., Salt, J., Sampsonidis, D., Sannino, M., Savoy-Navarro, A., Schwanda, C., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Sedykh, Yu, Segar, A. M., Sekulin, R. L., Sette, G., Shellard, R. C., Siebel, M., Simard, L., Simonetto, F., Sissakian, A. N., Smadja, G., Smirnov, N., Smirnova, O., Smith, G. R., Sokolov, A., Solovyanov, O., Sopczak, A., Sosnowski, R., Spassoff, Tz, Spiriti, E., Squarcia, S., Stanescu, C., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli Fatis, T., Taffard, A., Tegenfeldt, F., Terranova, F., Timmermans, J., Tinti, N., Tkatchev, L. G., Tobin, M., Todorova, S., Tome, B., Tonazzo, A., Tortora, L., Tortosa, Pablo, Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, M. L., Tyapkin, I. A., Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Velde, C., Dam, P., Den Boeck, W., Doninck, W. K., Eldik, J., Lysebetten, A., Remortel, N., Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, L. S., Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, A., Voulgaris, G., Vrba, V., Wahlen, H., Washbrook, A. J., Weiser, C., Wicke, D., Wickens, J. H., Wilkinson, G. R., Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, N. I., Zintchenko, A., Zoller, P., Zumerle, G., Zupan, M., Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G, Alemany, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Anassontzis, E, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Asman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Bellunato, T, Belokopytov, Y, Belous, K, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bilenky, M, Bloch, D, Blom, H, Bol, J, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bowcock, T, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, R, Brodet, E, Bruckman, P, Brunet, J, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Cattai, A, Cavallo, F, Chapkin, M, Charpentier, P, Checehia, P, Chelkov, G, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Chung, S, Cieslik, K, Collins, P, Contri, R, Cosme, G, Cossutti, F, Costa, M, Crawley, H, Crennell, D, Croix, J, Maestro, J, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, J, Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, T, Fernandez, J, Ferrer, A, Ferrer Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Fontanelli, F, Franek, B, Frodesen, A, Fruhwirth, R, Fulda Quenzer, F, Fuster, J, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Ghodbane, N, Glege, F, Gokieli, R, Golob, B, Gomez Ceballos, G, Goncalves, P, Caballero, I, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hajduk, Z, Hallgren, A, Hamacher, K, Hamilton, K, Hansen, J, Harris, F, Haug, S, Hauler, F, Hedberg, V, Heising, S, Herquet, P, Herr, H, Hertz, O, Higon, E, Holmgren, S, Holt, P, Hoorelbeke, S, Houlden, M, Hrubec, J, Hughes, G, Hultqvist, K, Jackson, J, Jacobsson, R, Jarlskog, C, Jarlskog, G, Jarry, P, Jean Marie, B, Jeans, D, Johansson, E, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Khomenko, B, Khovanski, N, Kiiskinen, A, King, B, Kinvig, A, Kjaer, N, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kucewicz, W, Kucharczyk, M, Kurowska, J, Lamsa, J, Laugier, J, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lemonne, J, Lenzen, G, Lepeltier, V, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loken, J, Lopes, J, Lopez, J, Lopez Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez Rivero, C, Garcia, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Merle, E, Meroni, C, Meyer, W, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, M, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Niezurawski, P, Nikolenko, T, Nomokonov, V, Nygren, A, Oblakowska Mucha, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Ratoff, P, Read, A, Rebecchi, P, Redaelli, N, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Ripp Baudot, I, Romero, A, Ronchese, P, Rosenberg, E, Rosinsky, P, Roudeau, P, Rovelli, T, Ruhlmann Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salmi, L, Salt, J, Sampsonidis, D, Sannino, M, Savoy Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Seager, P, Sedykh, Y, Segar, A, Sekulin, R, Sette, G, Shellard, R, Siebel, M, Simard, L, Simonetto, F, Sisakian, A, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Sokolov, A, Solovianov, O, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stocchi, A, Strauss, J, Strub, R, Stugu, D, Szczekowski, M, Szeptycka, M, Szumlak, T, TABARELLI DE FATIS, T, Taffard, A, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorova, S, Tome, B, Tortora, L, Tortosa, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Velde, C, Van Dam, P, Van den Boeck, W, Van Doninck, W, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, Delphi (IHEF, IoP, FNWI), Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, and DELPHI Collaboration

Subjects
Particle physics, Physics and Astronomy (miscellaneous), Meson, PAIR PRODUCTION, ENERGIES, FOS: Physical sciences, Branching (polymer chemistry), 01 natural sciences, CROSS-SECTIONS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), BHABHA SCATTERING, MONTE-CARLO, RADIATIVE-CORRECTIONS, PARTICLE PHYSICS, DELPHI DETECTOR, CP-INVARIANCE, DECAY, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Engineering (miscellaneous), DELPHI, Physics, high energy collider, 010308 nuclear & particles physics, LEP, Charged particle, FIS/01 - FISICA SPERIMENTALE, High Energy Physics::Experiment, Física nuclear, Particle Physics - Experiment
Abstract

Using data collected in the DELPHI detector at LEP-1, measurements of the inclusive tau branching ratios for decay modes containing one, three, or five charged particles have been performed, giving the following results: B_1 = B(\tau^- -> (particle)^- \geq 0pi^0 \geq 0K^0 \nu_\tau(\bar{\nu})) = (85.316 +/- 0.093 +/- 0.049)%; B_3 = B(\tau^- -> 2h^-h^+ \geq 0pi^0 \geq 0K^0 \nu_\tau) = (14.569 +/- 0.093 +/- 0.048)%; B_5 = B(\tau^- -> 3h^-2h^+ \geq 0pi^0 \geq 0K^0 \nu_\tau) = (0.115 +/- 0.013 +/- 0.006)%, where h is either a charged pi or K meson. The first quoted uncertainties are statistical and the second systematic., Comment: 32 pages, 10 figures, Accepted by Eur. Phys. J. C

Published
2016

19. Search for the Standard Model Higgs boson at LEP in the year 2000

Author

Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, GD, Alemany, R, Allmendinger, T, Allport, PP, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Anassontzis, EG, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, WD, Arnoud, Y, Asman, B, Augustin, JE, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, DY, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, KH, Begalli, M, Behrmann, A, Belokopytov, Y, Belous, K, Benekos, NC, Benvenuti, AC, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bilenky, MS, Bloch, D, Blom, HM, Bol, L, Bonesini, M, Boonekamp, M, Booth, PSL, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bowcock, TJV, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, RA, Bruckman, P, Brunet, JM, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Gimenez, MVC, Cattai, A, Cavallo, FR, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, GA, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, HB, Crennell, D, Croix, J, Crosetti, G, Maestro, JC, Czeller, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, De Angelis, A, De Boer, W, De Clercq, C, De Lotto, B, De Min, A, De Paula, L, Dijkstra, H, Di Ciaccio, L, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, JP, Santo, ME, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Franek, B, Frodesen, AG, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazia, EN, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Goncalves, P, Caballero, IG, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, FJ, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, JJ, Herquet, P, Herr, H, Hertz, O, Higon, E, Holmgren, SO, Holt, PJ, Hoorelbeke, S, Houlden, M, Hrubec, J, Hughes, GJ, Hultqvist, K, Jackson, JN, Jacobsson, R, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, EK, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, EC, Keranen, R, Kernel, G, Kersevan, BP, Khomenko, BA, Khovanski, NN, Kiiskinen, A, King, B, Kinvig, A, Kjaer, NJ, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kucharczyk, M, Kurowska, J, Lamsa, JW, Laugier, JP, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loken, JG, Lopes, JH, Lopez, JM, Lopez-Femandez, R, Loukas, D, Lutz, P, Lyons, L, MacNaughton, J, Mahon, JR, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, JC, Mariotti, C, Markou, A, Martinez-Rivero, C, Garcia, SMI, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, C, Mazzucato, F, Mazzucato, M, Cubbin, MM, Kay, RM, Nulty, RM, Merle, E, Meroni, C, Meyer, WT, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, WA, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, MR, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mundim, LM, Murray, WJ, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, FL, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, AG, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, TD, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, HT, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, ME, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Read, AL, Rebecchi, P, Redaelli, NG, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, PB, Resvanis, LK, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Romero, A, Ronchese, P, Rosenberg, EI, Rosinsky, P, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salmi, L, Salt, J, Sampsonidis, D, Sannino, M, Savoy-Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Sedykh, Y, Segar, AM, Sekulin, R, Sette, G, Shellard, RC, Siebel, M, Simard, L, Simonetto, F, Sisakian, AN, Smadja, G, Smirnov, N, Smirnova, O, Smith, GR, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tchikilev, O, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, LG, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, ML, Tyapkin, IA, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, Van Dam, P, Van den Boeck, W, Van Doninck, WK, Van Eldik, J, Van Lysebetten, A, van Remortel, N, Van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, LS, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, AS, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, AJ, Weiser, C, Wicke, D, Wickens, JH, Wilkinson, GR, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, NI, Zintcheneo, A, Zoller, P, Zumerle, G, Zupan, M, Collaboration, DELPHI, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), DELPHI, Delphi, Collaboration, Abreu, P., Adam, W., Canale, Vincenzo, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Goncalves, P, Gonzalez Caballero, I, Gopal, G, Gorn, L, Gouz, Y, Gracco, V, Grahl, J, Graziani, E, Grosdidier, G, Grzelak, K, Guy, J, Haag, C, Hahn, F, Hahn, S, Haider, S, Hallgren, A, Hamacher, K, Hansen, J, Harris, F, Haug, S, Hauler, F, Hedberg, V, Heising, S, Hernandez, J, Herquet, P, Herr, H, Hertz, O, Higon, E, Holmgren, S, Holt, P, Hoorelbeke, S, Houlden, M, Hrubec, J, Hughes, G, Hultqvist, K, Jackson, J, Jacobsson, R, Jalocha, P, Jarlskog, C, Jarlskog, G, Jarry, P, Jean-Marie, B, Jeans, D, Johansson, E, Jonsson, P, Joram, C, Juillot, P, Jungermann, L, Kapusta, F, Karafasoulis, K, Katsanevas, S, Katsoufis, E, Keranen, R, Kernel, G, Kersevan, B, Khomenko, B, Khovanski, N, Kiiskinen, A, King, B, Kinvig, A, Kjaer, N, Klapp, O, Kluit, P, Kokkinias, P, Kostioukhine, V, Kourkoumelis, C, Kouznetsov, O, Krammer, M, Kriznic, E, Krumstein, Z, Kubinec, P, Kucharczyk, M, Kurowska, J, Lamsa, J, Laugier, J, Leder, G, Ledroit, F, Leinonen, L, Leisos, A, Leitner, R, Lenzen, G, Lepeltier, V, Lesiak, T, Lethuillier, M, Libby, J, Liebig, W, Liko, D, Lipniacka, A, Lippi, I, Loken, J, Lopes, J, Lopez, J, Lopez-Fernandez, R, Loukas, D, Lutz, P, Lyons, L, Macnaughton, J, Mahon, J, Maio, A, Malek, A, Maltezos, S, Malychev, V, Mandl, F, Marco, J, Marco, R, Marechal, B, Margoni, M, Marin, J, Mariotti, C, Markou, A, Martinez-Rivero, C, Marti i Garcia, S, Masik, J, Mastroyiannopoulos, N, Matorras, F, Matteuzzi, C, Matthiae, G, Mazzucato, F, Mazzucato, M, Mc Cubbin, M, Mc Kay, R, Mc Nulty, R, Merle, E, Meroni, C, Meyer, W, Miagkov, A, Migliore, E, Mirabito, L, Mitaroff, W, Mjoernmark, U, Moa, T, Moch, M, Moenig, K, Monge, M, Montenegro, J, Moraes, D, Morettini, P, Morton, G, Mueller, U, Muenich, K, Mulders, M, Mundim, L, Murray, W, Muryn, B, Myatt, G, Myklebust, T, Nassiakou, M, Navarria, F, Nawrocki, K, Negri, P, Nemecek, S, Neufeld, N, Nicolaidou, R, Niezurawski, P, Nikolenko, M, Nomokonov, V, Nygren, A, Obraztsov, V, Olshevski, A, Onofre, A, Orava, R, Osterberg, K, Ouraou, A, Oyanguren, A, Paganoni, M, Paiano, S, Pain, R, Paiva, R, Palacios, J, Palka, H, Papadopoulou, T, Pape, L, Parkes, C, Parodi, F, Parzefall, U, Passeri, A, Passon, O, Peralta, L, Perepelitsa, V, Pernicka, M, Perrotta, A, Petridou, C, Petrolini, A, Phillips, H, Pierre, F, Pimenta, M, Piotto, E, Podobnik, T, Poireau, V, Pol, M, Polok, G, Poropat, P, Pozdniakov, V, Privitera, P, Pukhaeva, N, Pullia, A, Radojicic, D, Ragazzi, S, Rahmani, H, Read, A, Rebecchi, P, Redaelli, N, Regler, M, Rehn, J, Reid, D, Reinhardt, R, Renton, P, Resvanis, L, Richard, F, Ridky, J, Rinaudo, G, Ripp-Baudot, I, Romero, A, Ronchese, P, Rosenberg, E, Rosinsky, P, Abreu, P, Adam, W, Adye, T, Adzic, P, Albrecht, Z, Alderweireld, T, Alekseev, G, Alemany, R, Allmendinger, T, Allport, P, Almehed, S, Amaldi, U, Amapane, N, Amato, S, Anashkin, E, Anassontzis, E, Andersson, P, Andreazza, A, Andringa, S, Anjos, N, Antilogus, P, Apel, W, Arnoud, Y, Åsman, B, Augustin, J, Augustinus, A, Baillon, P, Ballestrero, A, Bambade, P, Barao, F, Barbiellini, G, Barbier, R, Bardin, D, Barker, G, Baroncelli, A, Battaglia, M, Baubillier, M, Becks, K, Begalli, M, Behrmann, A, Belokopytov, Y, Belous, K, Benekos, N, Benvenuti, A, Berat, C, Berggren, M, Berntzon, L, Bertrand, D, Besancon, M, Besson, N, Bilenky, M, Bloch, D, Blom, H, Bol, L, Bonesini, M, Boonekamp, M, Booth, P, Borisov, G, Bosio, C, Botner, O, Boudinov, E, Bouquet, B, Bowcock, T, Boyko, I, Bozovic, I, Bozzo, M, Bracko, M, Branchini, P, Brenner, R, Bruckman, P, Brunet, J, Bugge, L, Buschmann, P, Caccia, M, Calvi, M, Camporesi, T, Canale, V, Carena, F, Carroll, L, Caso, C, Castillo Gimenez, M, Cattai, A, Cavallo, F, Chapkin, M, Charpentier, P, Checchia, P, Chelkov, G, Chierici, R, Chliapnikov, P, Chochula, P, Chorowicz, V, Chudoba, J, Cieslik, K, Collins, P, Contri, R, Cortina, E, Cosme, G, Cossutti, F, Costa, M, Crawley, H, Crennell, D, Croix, J, Crosetti, G, Cuevasmaestro, J, Czellar, S, D'Hondt, J, Dalmau, J, Davenport, M, Da Silva, W, Della Ricca, G, Delpierre, P, Demaria, N, de Angelis, A, de Boer, W, de Clercq, C, de Lotto, B, Demin, A, de Paula, L, Dijkstra, H, di Ciaccio, L, Doroba, K, Dracos, M, Drees, J, Dris, M, Eigen, G, Ekelof, T, Ellert, M, Elsing, M, Engel, J, Espirito Santo, M, Fanourakis, G, Fassouliotis, D, Feindt, M, Fernandez, J, Ferrer, A, Ferrer-Ribas, E, Ferro, F, Firestone, A, Flagmeyer, U, Foeth, H, Fokitis, E, Franek, B, Frodesen, A, Fruhwirth, R, Fulda-Quenzer, F, Fuster, J, Gamba, D, Gamblin, S, Gandelman, M, Garcia, C, Gaspar, C, Gaspar, M, Gasparini, U, Gavillet, P, Gazis, E, Gele, D, Geralis, T, Ghodbane, N, Gil, I, Glege, F, Gokieli, R, Golob, B, Gomez-Ceballos, G, Roudeau, P, Rovelli, T, Ruhlmann-Kleider, V, Ruiz, A, Saarikko, H, Sacquin, Y, Sadovsky, A, Sajot, G, Salmi, L, Salt, J, Sampsonidis, D, Sannino, M, Savoy-Navarro, A, Schwanda, C, Schwemling, P, Schwering, B, Schwickerath, U, Scuri, F, Sedykh, Y, Segar, A, Sekulin, R, Sette, G, Shellard, R, Siebel, M, Simard, L, Simonetto, F, Sisakian, A, Smadja, G, Smirnov, N, Smirnova, O, Smith, G, Sokolov, A, Sopczak, A, Sosnowski, R, Spassov, T, Spiriti, E, Squarcia, S, Stanescu, C, Stanitzki, M, Stevenson, K, Stocchi, A, Strauss, J, Strub, R, Stugu, B, Szczekowski, M, Szeptycka, M, Tabarelli, T, Taffard, A, Tchikilev, O, Tegenfeldt, F, Terranova, F, Timmermans, J, Tinti, N, Tkatchev, L, Tobin, M, Todorova, S, Tome, B, Tonazzo, A, Tortora, L, Tortosa, P, Treille, D, Tristram, G, Trochimczuk, M, Troncon, C, Turluer, M, Tyapkin, I, Tyapkin, P, Tzamarias, S, Ullaland, O, Uvarov, V, Valenti, G, Vallazza, E, Vander Velde, C, van Dam, P, van den Boeck, W, van Doninck, W, van Eldik, J, van Lysebetten, A, van Remortel, N, van Vulpen, I, Vegni, G, Ventura, L, Venus, W, Verbeure, F, Verdier, P, Verlato, M, Vertogradov, L, Verzi, V, Vilanova, D, Vitale, L, Vlasov, E, Vodopyanov, A, Voulgaris, G, Vrba, V, Wahlen, H, Washbrook, A, Weiser, C, Wicke, D, Wickens, J, Wilkinson, G, Winter, M, Witek, M, Wolf, G, Yi, J, Yushchenko, O, Zalewska, A, Zalewski, P, Zavrtanik, D, Zevgolatakos, E, Zimin, N, Zintchenko, A, Zoller, P, Zumerle, G, Zupan, M, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, UCL - SC/PHYS - Département de physique, and Delphi (IHEF, IoP, FNWI)

Subjects
Nuclear and High Energy Physics, Particle physics, FOS: Physical sciences, E(+)E(-) COLLISIONS, ROOT-S=183 GEV, 01 natural sciences, Partícules (Física nuclear), High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Range (statistics), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Limit (mathematics), 010306 general physics, DELPHI, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, LARGE ELECTRON POSITRON COLLIDER, PARTICLE PHYSICS, Higgs boson, High Energy Physics::Experiment, Física nuclear, Particle Physics - Experiment
Abstract

Searches for the Standard Model Higgs boson have been performed in the data collected by the DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and 209 GeV corresponding to a total integrated luminosity of 224 pb^{-1}. No evidence for a Higgs signal is observed in the kinematically accessible mass range, and a 95% CL lower mass limit of 114.3 GeV/c^2 is set, to be compared with an expected median limit of 113.5 GeV/c^2 for these data., Comment: 19 pages, 9 figures

Published
2016

20. Identified charged particles in quark and gluon jets

Author

Abreu, P., Adam, W., Adye, T., Adzic, P., Albrecht, Z., Alderweireld, T., Alekseev, Gd, Alemany, R., Allmendinger, T., Allport, Pp, Almehed, S., Amaldi, U., Amapane, N., Amato, S., Anassontzis, Eg, Andersson, P., Andreazza, A., Andringa, S., Antilogus, P., Apel, Wd, Arnoud, Y., Asman, B., Augustin, Je, Augustinus, A., Baillon, P., Ballestrero, A., Bambade, P., Barao, F., Barbiellini, G., Barbier, R., Bardin, Dy, Barker, G., Baroncelli, A., Battaglia, M., Baubillier, M., Becks, Kh, Begalli, M., Behrmann, A., Beilliere, P., Belokopytov, Y., Belous, K., Benekos, Nc, Benvenuti, Ac, Berat, C., Berggren, M., Bertrand, D., Besancon, M., Bigi, M., Bilenky, Ms, Bizouard, Ma, Bloch, D., Blom, Hm, Bonesini, M., Boonekamp, M., Booth, Psl, Borgland, Aw, Borisov, G., Bosio, C., Botner, O., Boudinov, E., Bouquet, B., Bourdarios, C., Bowcock, Tjv, Boyko, I., Bozovic, I., Bozzo, M., Bracko, M., Branchini, P., Brenner, Ra, Bruckman, P., Brunet, Jm, Bugge, L., Buran, T., Buschbeck, B., Buschmann, P., Cabrera, S., Caccia, M., Calvi, M., Camporesi, T., Canale, V., Carena, F., Carroll, L., Caso, C., Gimenez, Mvc, Cattai, A., Cavallo, Fr, Chabaud, V., Chapkin, M., Charpentier, P., Checchia, P., Chelkov, Ga, Chierici, R., Chliapnikov, P., Chochula, P., Chorowicz, V., Chudoba, J., Cieslik, K., Collins, P., Contri, R., Cortina, E., Cosme, G., Cossutti, F., Crawley, Hb, Crennell, D., Crepe, S., Crosetti, G., Maestro, Jc, Czellar, S., Davenport, M., Da Silva, W., Della Ricca, G., Delpierre, P., Demaria, N., Angelis, A., Boer, W., Clercq, C., Lotto, B., Min, A., Leandro de Paula, Dijkstra, H., Di Ciaccio, L., Dolbeau, J., Doroba, K., Dracos, M., Drees, J., Dris, M., Duperrin, A., Durand, Jd, Eigen, G., Ekelof, T., Ekspong, G., Ellert, M., Elsing, M., Engel, Jp, Santo, Me, Fanourakis, G., Fassouliotis, D., Fayot, J., Feindt, M., Ferrer, A., Ferrer-Ribas, E., Ferro, F., Fichet, S., Firestone, A., Flagmeyer, U., Foeth, H., Fokitis, E., Fontanelli, F., Franek, B., Frodesen, Ag, Fruhwirth, R., Fulda-Quenzer, F., Fuster, J., Galloni, A., Gamba, D., Gamblin, S., Gandelman, M., Garcia, C., Gaspar, C., Gaspar, M., Gasparini, U., Gavillet, P., Gazis, En, Gele, D., Geralis, T., Ghodbane, N., Gil, I., Glege, F., Gokieli, R., Golob, B., Gomez-Ceballos, G., Goncalves, P., Caballero, Ig, Gopal, G., Gorn, L., Gouz, Y., Gracco, V., Grahl, J., Graziani, E., Gris, P., Grosdidier, G., Grzelak, K., Guy, J., Haag, C., Hahn, F., Hahn, S., Haider, S., Hallgren, A., Hamacher, K., Hansen, J., Harris, Fj, Hauler, F., Hedberg, V., Heising, S., Hernandez, Jj, Herquet, P., Herr, H., Hessing, Tl, Heuser, Jm, Higon, E., Holmgren, So, Holt, Pj, Hoorelbeke, S., Houlden, M., Hrubec, J., Huber, M., Huet, K., Hughes, Gj, Hultqvist, K., Jackson, Jn, Jacobsson, R., Jalocha, P., Janik, R., Jarlskog, C., Jarlskog, G., Jarry, P., Jean-Marie, B., Jeans, D., Johansson, Ek, Jonsson, P., Joram, C., Juillot, P., Jungermann, L., Kapusta, F., Karafasoulis, K., Katsanevas, S., Katsoufis, Ec, Keranen, R., Kernel, G., Kersevan, Bp, Khokhlov, Y., Khomenko, Ba, Khovanski, Nn, Kiiskinen, A., King, B., Kinvig, A., Kjaer, Nj, Klapp, O., Klein, H., Kluit, P., Kokkinias, P., Kostioukhine, V., Kourkoumelis, C., Kouznetsov, O., Krammer, M., Kriznic, E., Krumstein, Z., Kubinec, P., Kurowska, J., Kurvinen, K., Lamsa, Jw, Lane, Dw, Langefeld, P., Lapin, V., Laugier, Jp, Lauhakangas, R., Leder, G., Ledroit, F., Lefebure, V., Leinonen, L., Leisos, A., Leitner, R., Lenzen, G., Lepeltier, V., Lesiak, T., Lethuillier, M., Libby, J., Liebig, W., Liko, D., Lipniacka, A., Lippi, I., Loerstad, B., Loken, Jg, Lopes, Jh, Lopez, Jm, Lopez-Fernandez, R., Loukas, D., Lutz, P., Lyons, L., Macnaughton, J., Mahon, Jr, Maio, A., Malek, A., Malmgren, Tgm, Maltezos, S., Malychev, V., Mandl, F., Marco, J., Marco, R., Marechal, B., Margoni, M., Marin, Jc, Mariotti, C., Markou, A., Martinez-Rivero, C., Martinez-Vidal, F., Garcia, Smi, Masik, J., Mastroyiannopoulos, N., Matorras, F., Matteuzzi, C., Matthiae, G., Mazzucato, F., Mazzucato, M., Mc Cubbin, M., Mc Kay, R., Mc Nulty, R., Mc Pherson, G., Meroni, C., Meyer, Wt, Migliore, E., Mirabito, L., Mitaroff, Wa, Mjoernmark, U., Moa, T., Moch, M., Moeller, R., Moenig, K., Monge, MR, Moraes, D., Moreau, X., Morettini, P., Morton, G., Mueller, U., Muenich, K., Mulders, M., Mulet-Marquis, C., Muresan, R., Murray, Wj, Muryn, B., Myatt, G., Myklebust, T., Naraghi, F., Nassiakou, M., Navarria, Fl, Navas, S., Nawrocki, K., Negri, P., Neufeld, N., Nicolaidou, R., Nielsen, Bs, Niezurawski, P., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Olshevski, Ag, Onofre, A., Orava, R., Orazi, G., Osterberg, K., Ouraou, A., Paganoni, M., Paiano, S., Pain, R., Paiva, R., Palacios, J., Palka, H., Papadopoulou, Td, Pape, L., Parkes, C., Parodi, F., Parzefall, U., Passeri, A., Passon, O., Pavel, T., Pegoraro, M., Peralta, L., Pernicka, M., Perrotta, A., Petridou, C., Petrolini, A., Phillips, Ht, Pierre, F., Pimenta, M., Piotto, E., Podobnik, T., Pol, Me, Polok, G., Poropat, P., Pozdniakov, V., Privitera, P., Pukhaeva, N., Pullia, A., Radojicic, D., Ragazzi, S., Rahmani, H., Rames, J., Ratoff, Pn, Read, Al, Rebecchi, P., Redaelli, Ng, Regler, M., Rehn, J., Reid, D., Reinhardt, R., Renton, Pb, Resvanis, Lk, Richard, F., Ridky, J., Rinaudo, G., Ripp-Baudot, I., Rohne, O., Romero, A., Ronchese, P., Rosenberg, Ei, Rosinsky, P., Roudeau, P., Rovelli, T., Royon, C., Ruhlmann-Kleider, V., Ruiz, A., Saarikko, H., Sacquin, Y., Sadovsky, A., Sajot, G., Salt, J., Sampsonidis, D., Sannino, M., Schwemling, P., Schwering, B., Schwickerath, U., Scuri, F., Seager, P., Sedykh, Y., Seemann, F., Segar, Am, Seibert, N., Sekulin, R., Shellard, Rc, Siebel, M., Simard, L., Simonetto, F., Sisakian, An, Smadja, G., Smirnova, O., Smith, Gr, Solovianov, A., Sopczak, A., Sosnowski, R., Spassov, T., Spiriti, E., Squarcia, S., Stanescu, C., Stanic, S., Stanitzki, M., Stevenson, K., Stocchi, A., Strauss, J., Strub, R., Stugu, B., Szczekowski, M., Szeptycka, M., Tabarelli, T., Taffard, A., Tchikilev, O., Tegenfeldt, F., Terranova, F., Thomas, J., Timmermans, J., Tinti, N., Tkatchev, Lg, Tobin, M., Todorova, S., Tomaradze, A., Tome, B., Tonazzo, A., Tortora, L., Tortosa, P., Transtromer, G., Treille, D., Tristram, G., Trochimczuk, M., Troncon, C., Turluer, Ml, Tyapkin, Ia, Tyapkin, P., Tzamarias, S., Ullaland, O., Uvarov, V., Valenti, G., Vallazza, E., Dam, P., Den Boeck, W., Eldik, J., Lysebetten, A., Remortel, N., Vulpen, I., Vegni, G., Ventura, L., Venus, W., Verbeure, F., Verdier, P., Verlato, M., Vertogradov, Ls, Verzi, V., Vilanova, D., Vitale, L., Vlasov, E., Vodopyanov, As, Voulgaris, G., Vrba, V., Wahlen, H., Walck, C., Washbrook, Aj, Weiser, C., Wicke, D., Wickens, Jh, Wilkinson, Gr, Winter, M., Witek, M., Wolf, G., Yi, J., Yushchenko, O., Zalewska, A., Zalewski, P., Zavrtanik, D., Zevgolatakos, E., Zimin, Ni, Zintchenko, A., Zoller, P., Zucchelli, Gc, Zumerle, G., Delphi, Collaboration, BARBIELLINI AMIDEI, Guido, Cossutti, F., DELLA RICCA, Giuseppe, Poropat, Paolo, Vitale, Lorenzo, DELPHI Collaboration, Delphi (IHEF, IoP, FNWI), and UCL - SST/IRMP - Institut de recherche en mathématique et physique

Subjects
Quark, Antiparticle, Particle physics, Physics and Astronomy (miscellaneous), High Energy Physics::Lattice, Hadron, Nuclear Theory, FOS: Physical sciences, 01 natural sciences, Spectral line, DECAYS, Partícules (Física nuclear), High Energy Physics - Experiment, PHYSICS, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, ALGORITHM, Multiplicity (chemistry), 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), DELPHI, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, MULTIPLICITY, ORDER QCD, LARGE ELECTRON POSITRON COLLIDER, Charged particle, Gluon, Baryon, PARTICLE PHYSICS, Física nuclear, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

A sample of 2.2 million hadronic Z decays, selected from the data recorded by the Delphi detector at LEP during 1994-1995 was used for an improved measurement of inclusive distributions of pi+, K+ and p and their antiparticles in gluon and quark jets. The production spectra of the individual identified particles were found to be softer in gluon jets compared to quark jets, with a higher multiplicity in gluon jets as observed for inclusive charged particles. A significant proton enhancement in gluon jets is observed indicating that baryon production proceeds directly from colour objects. The maxima, xi^*, of the xi-distributions for kaons in gluon and quark jets are observed to be different., 24 pages, 12 figures

Published
2016

26. Fractionalized Z2 Classical Heisenberg Spin Liquids.

Author

Rehn, J., Sen, Arnab, and Moessner, R.

Subjects
*HEISENBERG model, *QUANTUM spin liquid, *DEGREES of freedom
Abstract

Quantum spin systems are by now known to exhibit a large number of different classes of spin liquid phases. By contrast, for classical Heisenberg models, only one kind of fractionalized spin liquid phase, the so-called Coulomb or U(1) spin liquid, has until recently been identified: This exhibits algebraic spin correlations and impurity moments, "orphan spins," whose size is a fraction of that of the underlying microscopic degrees of freedom. Here, we present two Heisenberg models exhibiting fractionalization in combination with exponentially decaying correlations. These can be thought of as a classical continuous spin version of a Z2 spin liquid. Our work suggests a systematic search and classification of classical spin liquids as a worthwhile endeavor. [ABSTRACT FROM AUTHOR]

Published
2017
Full Text
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27. Artificial intelligence-based data extraction for next generation risk assessment: Is fine-tuning of a large language model worth the effort?

Author

Sonnenburg A, van der Lugt B, Rehn J, Wittkowski P, Bech K, Padberg F, Eleftheriadou D, Dobrikov T, Bouwmeester H, Mereu C, Graf F, Kneuer C, Kramer NI, and Blümmel T

Subjects
Risk Assessment methods, Humans, Data Mining methods, Benzhydryl Compounds toxicity, Artificial Intelligence, Phenols toxicity
Abstract

To underpin scientific evaluations of chemical risks, agencies such as the European Food Safety Authority (EFSA) heavily rely on the outcome of systematic reviews, which currently require extensive manual effort. One specific challenge constitutes the meaningful use of vast amounts of valuable data from new approach methodologies (NAMs) which are mostly reported in an unstructured way in the scientific literature. In the EFSA-initiated project 'AI4NAMS', the potential of large language models (LLMs) was explored. Models from the GPT family, where GPT refers to Generative Pre-trained Transformer, were used for searching, extracting, and integrating data from scientific publications for NAM-based risk assessment. A case study on bisphenol A (BPA), a substance of very high concern due to its adverse effects on human health, focused on the structured extraction of information on test systems measuring biologic activities of BPA. Fine-tuning of a GPT-3 model (Curie base model) for extraction tasks was tested and the performance of the fine-tuned model was compared to the performance of a ready-to-use model (text-davinci-002). To update findings from the AI4NAMS project and to check for technical progress, the fine-tuning exercise was repeated and a newer ready-to-use model (text-davinci-003) served as comparison. In both cases, the fine-tuned Curie model was found to be superior to the ready-to-use model. Performance improvement was also obvious between text-davinci-002 and the newer text-davinci-003. Our findings demonstrate how fine-tuning and the swift general technical development improve model performance and contribute to the growing number of investigations on the use of AI in scientific and regulatory tasks., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Anna Sonnenburg reports financial support was provided by European Food Safety Authority. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper, (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)

Published
2024
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28. CT Findings in Laryngeal Trauma and the Clinical Implications.

Author

DiGrazia GN, Aktan SL, Sechrist EM, Rehn J, Joyce C, and Siddiqui MH

Subjects
Humans, Male, Adult, Female, Multidetector Computed Tomography, Retrospective Studies, Wounds, Gunshot, Larynx diagnostic imaging, Larynx injuries, Spinal Fractures, Wounds, Penetrating
Abstract

Purpose: Acute traumatic osseous and cartilaginous injuries to the larynx are rare injuries presenting to the emergency department. Despite the low reported incidence, laryngeal trauma carries a high morbidity and mortality. The purpose of this study is to identify fracture and soft tissue injury patterns in laryngeal trauma and explore associations with patient demographics, mechanisms of injury, urgent airway and surgical intervention., Methods: A retrospective review of patients with laryngeal injury who underwent multidetector computed tomography (MDCT) imaging was performed. The CT findings of laryngeal and hyoid fracture location, fracture displacement, and soft tissue injuries were recorded. Clinical data including patient demographics, mechanisms of injury, frequency of airway and surgical intervention were also recorded. Correlation of imaging characteristics with patient demographics, mechanism of injury and interventions were assessed for statistical significance using χ 2 and Fisher's exact tests., Results: The median patient age was 40 years old with a strong male predominance. The most common mechanisms of injury included motor vehicle collisions and penetrating gunshot wounds. Thyroid cartilage fractures were the most common fracture type. Findings of fracture displacement and airway hematoma had a higher correlation with requiring urgent airway management., Conclusion: Radiologists' early recognition and prompt communication of laryngeal trauma to the clinical service is important to reduce associated morbidity and mortality. Displaced fractures and laryngeal hematomas should be promptly conveyed to the clinical service as they are associated with more complex injuries and higher rates of urgent airway management and surgical intervention., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.)

Published
2023
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29. Paediatric B lymphoblastic leukaemia with hyperdiploidy and a false-positive KMT2A fluorescence in situ hybridization result.

Author

Nunn J, Adayapalam N, Riyat S, Seymour L, Williams B, Rehn J, White D, Moore AS, and Tsuchiya K

Subjects
Child, Female, Humans, In Situ Hybridization, Fluorescence, Chromosome Aberrations, Karyotyping, RNA, Messenger, Precursor Cell Lymphoblastic Leukemia-Lymphoma genetics, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma genetics, Lymphoma, Non-Hodgkin
Abstract

The dramatic improvement in the event-free survival of paediatric B-lymphoblastic leukaemia (B-ALL) has led to risk-stratified treatment. Through a combination of clinical features, cytogenetic abnormalities and assessment of treatment response, patients are stratified to receive different intensities of therapy. The presence of high hyperdiploidy (>50 chromosomes) is considered a favourable genetic feature. Conversely, KMT2A fusion genes in B-ALL are associated with a poor prognosis, resulting in intensification of treatment. We present a seven-year-old female with B-ALL, a high hyperdiploid karyotype (56 chromosomes) and KMT2A rearrangement detected on FISH, but with no productive fusion identified. Single nucleotide polymorphism (SNP) array suggested the KMT2A rearrangement was due to chromosome 11 chromothripsis. Subsequent targeted RNA fusion panel and whole transcriptomic sequencing (mRNA-seq) did not detect an expressed KMT2A fusion. Differential expression analyses of the mRNA-seq data led to clustering of this case with other hyperdiploid cases, consistent with the hyperdiploid cytogenetic results. Given the additional intensity and potential toxicity of high-risk treatment, unusual findings by chromosome analysis, FISH and/or chromosomal microarray should prompt consideration of testing for a KMT2A fusion by another method to avoid misclassification., Competing Interests: Declaration of Competing Interest The authors have no conflicts of interest., (Copyright © 2023. Published by Elsevier Inc.)

Published
2023
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30. Gain of chromosome 21 increases the propensity for P2RY8: :CRLF2 acute lymphoblastic leukemia via increased HMGN1 expression.

Author

Page EC, Heatley SL, Rehn J, Thomas PQ, Yeung DT, and White DL

Abstract

Acute lymphoblastic leukemia (ALL) patients with a gain of chromosome 21, intrachromosomal amplification of chromosome 21 (iAMP21), or Down syndrome (DS), have increased expression of genes in the DS critical region (DSCR) of chromosome 21, including the high-mobility group nucleosome-binding protein 1, HMGN1 . Children with DS are predisposed to develop hematologic malignancies, providing insight into the role of chromosome 21 in the development of leukemias. A 320-kb deletion in the pseudoautosomal region of the X/Y chromosome in leukemic cells, resulting in a gene fusion between the purinergic receptor and cytokine receptor-like factor-2 ( P2Y Receptor Family Member 8 (P2RY8)::CRLF2 ), is a common feature in ~60% of DS-ALL and ~40% of iAMP21 patients, suggesting a link between chromosome 21 and P2RY8::CRLF2 . In an Australian cohort of pediatric B-ALL patients with P2RY8::CRLF2 ( n = 38), eight patients harbored gain of chromosome 21 (+21), and two patients had iAMP21, resulting in a significantly increased HMGN1 expression. An inducible CRISPR/Cas9 system was used to model P2RY8::CRLF2 and investigate its cooperation with HMGN1 . This model was then used to validate HMGN1 as an influencing factor for P2RY8::CRLF2 development. Using Cas9 to cleave the DNA at the pseudoautosomal region without directed repair, cells expressing HMGN1 favored repair, resulting in P2RY8::CRLF2 generation, compared with cells without HMGN1 . CRISPR/Cas9 P2RY8::CRLF2 cells expressing HMGN1 exhibit increased proliferation, thymic stromal lymphopoietin receptor (TSLPR) expression, and JAK/STAT signaling, consistent with cells from patients with P2RY8::CRLF2 . Our patient expression data and unique CRISPR/Cas9 modeling, when taken together, suggest that HMGN1 increases the propensity for P2RY8::CRLF2 development. This has important implications for patients with DS, +21, or iAMP21., Competing Interests: DW receives research support from BMS and honoraria from BMS and AMGEN. DY receives research support from BMS and Novartis and honoraria from BMS, Novartis, Pfizer, and AMGEN. None of these companies had a role in the preparation of this manuscript. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Page, Heatley, Rehn, Thomas, Yeung and White.)

Published
2023
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31. RaScALL: Rapid (Ra) screening (Sc) of RNA-seq data for prognostically significant genomic alterations in acute lymphoblastic leukaemia (ALL).

Author

Rehn J, Mayoh C, Heatley SL, McClure BJ, Eadie LN, Schutz C, Yeung DT, Cowley MJ, Breen J, and White DL

Subjects
Humans, RNA-Seq, Australia, Genomics methods, RNA, Precursor Cell Lymphoblastic Leukemia-Lymphoma diagnosis, Precursor Cell Lymphoblastic Leukemia-Lymphoma genetics
Abstract

RNA-sequencing (RNA-seq) efforts in acute lymphoblastic leukaemia (ALL) have identified numerous prognostically significant genomic alterations which can guide diagnostic risk stratification and treatment choices when detected early. However, integrating RNA-seq in a clinical setting requires rapid detection and accurate reporting of clinically relevant alterations. Here we present RaScALL, an implementation of the k-mer based variant detection tool km, capable of identifying more than 100 prognostically significant lesions observed in ALL, including gene fusions, single nucleotide variants and focal gene deletions. We compared genomic alterations detected by RaScALL and those reported by alignment-based de novo variant detection tools in a study cohort of 180 Australian patient samples. Results were validated using 100 patient samples from a published North American cohort. RaScALL demonstrated a high degree of accuracy for reporting subtype defining genomic alterations. Gene fusions, including difficult to detect fusions involving EPOR and DUX4, were accurately identified in 98% of reported cases in the study cohort (n = 164) and 95% of samples (n = 63) in the validation cohort. Pathogenic sequence variants were correctly identified in 75% of tested samples, including all cases involving subtype defining variants PAX5 p.P80R (n = 12) and IKZF1 p.N159Y (n = 4). Intragenic IKZF1 deletions resulting in aberrant transcript isoforms were also detectable with 98% accuracy. Importantly, the median analysis time for detection of all targeted alterations averaged 22 minutes per sample, significantly shorter than standard alignment-based approaches. The application of RaScALL enables rapid identification and reporting of previously identified genomic alterations of known clinical relevance., Competing Interests: The authors have declared that no competing interests exist.

Published
2022
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33. Enhancer retargeting of CDX2 and UBTF::ATXN7L3 define a subtype of high-risk B-progenitor acute lymphoblastic leukemia.

Author

Kimura S, Montefiori L, Iacobucci I, Zhao Y, Gao Q, Paietta EM, Haferlach C, Laird AD, Mead PE, Gu Z, Stock W, Litzow M, Rowe JM, Luger SM, Hunger SP, Ryland GL, Schmidt B, Ekert PG, Oshlack A, Grimmond SM, Rehn J, Breen J, Yeung D, White DL, Aldoss I, Jabbour EJ, Pui CH, Meggendorfer M, Walter W, Kern W, Haferlach T, Brady S, Zhang J, Roberts KG, Blombery P, and Mullighan CG

Subjects
Adolescent, Adult, Aged, CDX2 Transcription Factor genetics, Child, Chromatin, Female, Genomics methods, Humans, Male, Middle Aged, Pol1 Transcription Initiation Complex Proteins, Prognosis, Transcription Factors genetics, Transcriptome, Young Adult, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma diagnosis, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma genetics, Precursor Cell Lymphoblastic Leukemia-Lymphoma genetics
Abstract

Transcriptome sequencing has identified multiple subtypes of B-progenitor acute lymphoblastic leukemia (B-ALL) of prognostic significance, but a minority of cases lack a known genetic driver. Here, we used integrated whole-genome (WGS) and -transcriptome sequencing (RNA-seq), enhancer mapping, and chromatin topology analysis to identify previously unrecognized genomic drivers in B-ALL. Newly diagnosed (n = 3221) and relapsed (n = 177) B-ALL cases with tumor RNA-seq were studied. WGS was performed to detect mutations, structural variants, and copy number alterations. Integrated analysis of histone 3 lysine 27 acetylation and chromatin looping was performed using HiChIP. We identified a subset of 17 newly diagnosed and 5 relapsed B-ALL cases with a distinct gene expression profile and 2 universal and unique genomic alterations resulting from aberrant recombination-activating gene activation: a focal deletion downstream of PAN3 at 13q12.2 resulting in CDX2 deregulation by the PAN3 enhancer and a focal deletion of exons 18-21 of UBTF at 17q21.31 resulting in a chimeric fusion, UBTF::ATXN7L3. A subset of cases also had rearrangement and increased expression of the PAX5 gene, which is otherwise uncommon in B-ALL. Patients were more commonly female and young adult with median age 35 (range,12-70 years). The immunophenotype was characterized by CD10 negativity and immunoglobulin M positivity. Among 16 patients with known clinical response, 9 (56.3%) had high-risk features including relapse (n = 4) or minimal residual disease >1% at the end of remission induction (n = 5). CDX2-deregulated, UBTF::ATXN7L3 rearranged (CDX2/UBTF) B-ALL is a high-risk subtype of leukemia in young adults for which novel therapeutic approaches are required., (© 2022 by The American Society of Hematology.)

Published
2022
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34. Multi-Cohort Transcriptomic Subtyping of B-Cell Acute Lymphoblastic Leukemia.

Author

Mäkinen VP, Rehn J, Breen J, Yeung D, and White DL

Subjects
Humans, Oncogene Proteins, Fusion genetics, RNA, Messenger genetics, Sequence Analysis, RNA, Transcriptome, Burkitt Lymphoma, Precursor Cell Lymphoblastic Leukemia-Lymphoma diagnosis, Precursor Cell Lymphoblastic Leukemia-Lymphoma genetics
Abstract

RNA sequencing provides a snapshot of the functional consequences of genomic lesions that drive acute lymphoblastic leukemia (ALL). The aims of this study were to elucidate diagnostic associations (via machine learning) between mRNA-seq profiles, independently verify ALL lesions and develop easy-to-interpret transcriptome-wide biomarkers for ALL subtyping in the clinical setting. A training dataset of 1279 ALL patients from six North American cohorts was used for developing machine learning models. Results were validated in 767 patients from Australia with a quality control dataset across 31 tissues from 1160 non-ALL donors. A novel batch correction method was introduced and applied to adjust for cohort differences. Out of 18,503 genes with usable expression, 11,830 (64%) were confounded by cohort effects and excluded. Six ALL subtypes (ETV6::RUNX1, KMT2A, DUX4, PAX5 P80R, TCF3::PBX1, ZNF384) that covered 32% of patients were robustly detected by mRNA-seq (positive predictive value ≥ 87%). Five other frequent subtypes (CRLF2, hypodiploid, hyperdiploid, PAX5 alterations and Ph-positive) were distinguishable in 40% of patients at lower accuracy (52% ≤ positive predictive value ≤ 73%). Based on these findings, we introduce the Allspice R package to predict ALL subtypes and driver genes from unadjusted mRNA-seq read counts as encountered in real-world settings. Two examples of Allspice applied to previously unseen ALL patient samples with atypical lesions are included.

Published
2022
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35. Case Report: Precision Medicine Target Revealed by In Vitro Modeling of Relapsed, Refractory Acute Lymphoblastic Leukemia From a Child With Neurofibromatosis.

Author

Heatley SL, Page EC, Eadie LN, McClure BJ, Rehn J, Yeung DT, Osborn M, Revesz T, Kirby M, and White DL

Abstract

Children with neurofibromatosis have a higher risk of developing juvenile myelomonocytic leukemia and acute myeloid leukemia, but rarely develop B-cell acute lymphoblastic leukemia (B-ALL). Through in-vitro modeling, a novel NF1 p.L2467 frameshift (fs) mutation identified in a relapsed/refractory Ph-like B-ALL patient with neurofibromatosis demonstrated cytokine independence and increased RAS signaling, indicative of leukemic transformation. Furthermore, these cells were sensitive to the MEK inhibitors trametinib and mirdametinib. Bi-allelic NF1 loss of function may be a contributing factor to relapse and with sensitivity to MEK inhibitors, suggests a novel precision medicine target in the setting of neurofibromatosis patients with B-ALL., Competing Interests: DTY received research support from Novartis, Ariad and BMS, Honoraria and Advisory role Novartis. DLW received Research support from Novartis and BMS, and Honoraria from BMS. MO received non-financial support from Amgen. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Heatley, Page, Eadie, McClure, Rehn, Yeung, Osborn, Revesz, Kirby and White.)

Published
2022
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37. Identification of a novel GOLGA4-JAK2 fusion gene in B-cell acute lymphoblastic leukaemia.

Author

Downes CEJ, Rehn J, Heatley SL, Yeung D, McClure BJ, and White DL

Subjects
Animals, Biopsy, Bone Marrow pathology, Cell Line, Tumor, Cell Survival drug effects, DNA Mutational Analysis, Disease Models, Animal, Gene Expression Regulation, Neoplastic drug effects, Gene Rearrangement, Genetic Predisposition to Disease, Humans, Male, Mice, Middle Aged, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma metabolism, Prognosis, Protein Kinase Inhibitors, Signal Transduction, Autoantigens genetics, Biomarkers, Tumor, Janus Kinase 2 genetics, Oncogene Proteins, Fusion genetics, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma diagnosis, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma genetics
Abstract

Rearrangements of Janus kinase 2 (JAK2r) form a subtype of acute lymphoblastic leukaemia (ALL) associated with poor patient outcomes. We present a high-risk case of B-cell ALL (B-ALL) where retrospective mRNA sequencing identified a novel GOLGA4-JAK2 fusion gene. Expression of GOLGA4-JAK2 in murine pro-B cells promoted factor-independent growth, implicating GOLGA4-JAK2 as an oncogenic driver. Cells expressing GOLGA4-JAK2 demonstrated constitutive activation of JAK/STAT signalling and were sensitive to JAK inhibitors. This study contributes to the diverse collection of JAK2 fusion genes identified in B-ALL and supports the incorporation of JAK inhibitors into treatment strategies to improve outcomes for this subtype., (© 2021 British Society for Haematology and John Wiley & Sons Ltd.)

Published
2022
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38. Compliance to a Gluten-Free Diet in Swedish Children with Type 1 Diabetes and Celiac Disease.

Author

Söderström H, Rehn J, Cervin M, Ahlstermark C, Bybrant MC, and Carlsson A

Subjects
Adolescent, Age Factors, Body Mass Index, Celiac Disease epidemiology, Child, Child, Preschool, Diabetes Mellitus, Type 1 epidemiology, Diabetic Ketoacidosis epidemiology, Female, Glycated Hemoglobin analysis, Humans, Immunoglobulin A immunology, Infant, Male, Protein Glutamine gamma Glutamyltransferase 2 immunology, Sex Factors, Sociodemographic Factors, Sweden, Celiac Disease diet therapy, Diabetes Mellitus, Type 1 diet therapy, Diet, Gluten-Free methods, Patient Compliance
Abstract

Children with type 1 diabetes (T1D) are at increased risk of celiac disease (CD). The replacement of insulin in T1D, and the exclusion of gluten in CD, are lifelong, burdensome treatments. Compliance to a gluten-free diet (GFD) in children with CD is reported to be high, while compliance in children with both diseases has scarcely been studied. To examine compliance to a GFD in children with both T1D and CD, we analyzed tissue transglutaminase IgA-antibodies (tTGA). Moreover, associations between compliance and age, sex, glycemic control, ketoacidosis (DKA), body mass index (BMI), and time of CD diagnosis were investigated. Of the 743 children diagnosed with T1D in southern Sweden between 2005 and 2012, 9% were also diagnosed with CD. Of these, 68% showed good compliance to a GFD, 18% showed intermediate compliance, and 14% were classified as non-compliant. Higher age, poorer HbA1c, and more DKAs were significantly ( p < 0.05) associated with poorer compliance. In conclusion, we found that compliance to a GFD in children with T1D and CD is likely be lower than in children with CD only. Our results indicate that children with both T1D and CD could need intensified dietary support and that older children and children with poor metabolic control are especially vulnerable subgroups.

Published
2021
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39. Acquired JAK2 mutations confer resistance to JAK inhibitors in cell models of acute lymphoblastic leukemia.

Author

Downes CEJ, McClure BJ, Bruning JB, Page E, Breen J, Rehn J, Yeung DT, and White DL

Abstract

Ruxolitinib (rux) Phase II clinical trials are underway for the treatment of high-risk JAK2-rearranged (JAK2r) B-cell acute lymphoblastic leukemia (B-ALL). Treatment resistance to targeted inhibitors in other settings is common; elucidating potential mechanisms of rux resistance in JAK2r B-ALL will enable development of therapeutic strategies to overcome or avert resistance. We generated a murine pro-B cell model of ATF7IP-JAK2 with acquired resistance to multiple type-I JAK inhibitors. Resistance was associated with mutations within the JAK2 ATP/rux binding site, including a JAK2 p.G993A mutation. Using in vitro models of JAK2r B-ALL, JAK2 p.G993A conferred resistance to six type-I JAK inhibitors and the type-II JAK inhibitor, CHZ-868. Using computational modeling, we postulate that JAK2 p.G993A enabled JAK2 activation in the presence of drug binding through a unique resistance mechanism that modulates the mobility of the conserved JAK2 activation loop. This study highlights the importance of monitoring mutation emergence and may inform future drug design and the development of therapeutic strategies for this high-risk patient cohort., (© 2021. The Author(s).)

Published
2021
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40. High-risk B-cell acute lymphoblastic leukaemia presenting with hypereosinophilia and acquiring a novel PAX5 fusion on relapse.

Author

McClure BJ, Heatley SL, Rehn J, Breen J, Sutton R, Hughes TP, Suppiah R, Revesz T, Osborn M, White D, Yeung DT, and White DL

Subjects
Adolescent, Humans, Male, Hypereosinophilic Syndrome genetics, Hypereosinophilic Syndrome metabolism, Hypereosinophilic Syndrome pathology, Immunoglobulin Heavy Chains genetics, Immunoglobulin Heavy Chains metabolism, Interleukin-3 genetics, Interleukin-3 metabolism, Oncogene Proteins, Fusion genetics, Oncogene Proteins, Fusion metabolism, PAX5 Transcription Factor genetics, PAX5 Transcription Factor metabolism, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma genetics, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma metabolism, Precursor B-Cell Lymphoblastic Leukemia-Lymphoma pathology
Published
2020
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41. The visibility of QSEN competencies in clinical assessment tools in Swedish nurse education.

Author

Nygårdh A, Sherwood G, Sandberg T, Rehn J, and Knutsson S

Subjects
Curriculum standards, Curriculum trends, Education, Nursing, Baccalaureate methods, Humans, Patient-Centered Care standards, Quality Improvement, Safety Management standards, Students, Nursing, Sweden, Universities organization & administration, Clinical Competence standards, Competency-Based Education methods, Educational Measurement methods, Nurses standards
Abstract

Background: Prospective nurses need specific and sufficient knowledge to be able to provide quality care. The Swedish Society of Nursing has emphasized the importance of the six quality and safety competencies (QSEN), originated in the US, in Swedish nursing education., Purpose: To investigate the visibility of the QSEN competencies in the assessment tools used in clinical practice METHOD: A quantitative descriptive method was used to analyze assessment tools from 23 universities., Results and Conclusion: Teamwork and collaboration was the most visible competency. Patient-centered care was visible to a large degree but was not referred to by name. Informatics was the least visible, a notable concern since all nurses should be competent in informatics to provide quality and safety in care. These results provide guidance as academic and clinical programs around the world implement assessment of how well nurses have developed these essential quality and safety competencies., (Copyright © 2017 Elsevier Ltd. All rights reserved.)

Published
2017
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42. Clinic Design as Placebo-Using Design to Promote Healing and Support Treatments.

Author

Rehn J and Schuster K

Abstract

Analogously to the medical placebo effect, people seem to anticipate the quality of treatments based on external stimuli. In order to gain insights on the effect the built environment can have on a person's judgments and behavior with a particular focus on health related issues, a quantitative survey ( N = 851) with four groups before and after the renovation of a rehabilitation clinic has been conducted. In line with an overall modernization of the clinic, the entrance, the lobby, and some patient rooms have been changed. In the lobby, a service counter and coffee bar have been added as well as light colors and new flooring material to achieve a more modern and clean atmosphere in the sense of aesthetical appearance of the space. The outcome revealed that patients rate the intention to change their health behavior as well as the quality of food or significantly higher in a modernized clinic. These differences cannot be directly attributed solely to the changes in the building. Analogously to the medical placebo, an effect referred to as design placebo effect is, therefore, proposed to explain improved ratings of aspects that have not directly been changed due to the intervention. Other significant effects are attributable to winter and summer climate. During summer time, ratings for waiting area, atmosphere, patient rooms, as well as for staff were significantly higher. It is, therefore, assumed that aesthetic attributes, such as architectural design, or friendliness of the weather, exert their effects as perceptual placebos that directly influence judgment outcomes and behavioral intentions. Further research is needed to match certain design and general environmental features to their effects on patients and investigate their effect strength., Competing Interests: The authors declare no conflict of interest. All parts of the above-described study have been officially approved by operator, patient manager, and quality manager of the clinic in which the study has been conducted. All the information provided by the participants of the study was taken anonymously and voluntarily and has not been passed on to any third party. Furthermore, the study design and possible ethical aspects have been reviewed by the graduate school of the Darmstadt University of Applied Sciences.

Published
2017
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