LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Back to previous search Search history
Advanced search

Your last searches

  1. AU="Homiller, Samuel"
  2. AU="Nizinski, Jan"
  3. AU="Crotty, Kelly A"
  4. AU="Schröder, Hansjörg"
  5. AU="Frazier, Bryan S"
  6. AU="Albornoz Almada, M Clara"
  7. AU="Weinstein, Omri"
  8. AU="Mecheik, Ali"
  9. AU="Lavitola, L"
  10. AU="Choi, Yunsuk"
  11. AU="Grosswendt, Bernd"
  12. AU="Geddes, Maiya"
  13. AU="Pyae Phyo Kyaw"
  14. AU="Nir Friedman"
  15. AU="Le Jeune, Sylvain"
  16. AU="Phillips, Catherine L"
  17. AU="Galindo-Riera, Natalia"
  18. AU="Daniel, Roy Thomas"
  19. AU="Hesselink, Matthijs K C"
  20. AU=Kwong Kenneth K
  21. AU="Quintero, Luis"
  22. AU=Johnson Benjamin W.

Search results

Result 1 - 7 of total 7

Search options

  1. Article ; Online: Probing New Gauge Forces with a High-Energy Muon Beam Dump.

    Cesarotti, Cari / Homiller, Samuel / Mishra, Rashmish K / Reece, Matthew

    Physical review letters

    2023  Volume 130, Issue 7, Page(s) 71803

    Abstract: We propose a new beam-dump experiment at a future TeV-scale muon collider. A beam dump would be an economical and effective way to increase the discovery potential of the collider complex in a complementary regime. In this Letter, we consider vector ... ...

    Abstract We propose a new beam-dump experiment at a future TeV-scale muon collider. A beam dump would be an economical and effective way to increase the discovery potential of the collider complex in a complementary regime. In this Letter, we consider vector models such as the dark photon and L_{μ}-L_{τ} gauge boson as new physics candidates and explore which novel regions of parameter space can be probed with a muon beam dump. We find that for the dark photon model, we gain sensitivity in the moderate mass (MeV-GeV) range at both higher and lower couplings compared to existing and proposed experiments, and gain access to previously untouched areas of parameter space of the L_{μ}-L_{τ} model.
    Language English
    Publishing date 2023-03-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.130.071803
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4' 58/153: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Light Scalars and the Koto Anomaly.

    Egana-Ugrinovic, Daniel / Homiller, Samuel / Meade, Patrick

    Physical review letters

    2020  Volume 124, Issue 19, Page(s) 191801

    Abstract: We show that the recent excess presented by KOTO in their search for K_{L}→π^{0}νν[over ¯] may be due to weakly coupled scalars produced from Kaon decays. We study two concrete realizations, the minimal Higgs portal and a hadrophilic scalar model, and ... ...

    Abstract We show that the recent excess presented by KOTO in their search for K_{L}→π^{0}νν[over ¯] may be due to weakly coupled scalars produced from Kaon decays. We study two concrete realizations, the minimal Higgs portal and a hadrophilic scalar model, and demonstrate that they can explain the observed events while satisfying existing limits. The simplicity of these models, and their possible relations to interesting UV constructions, provides strong theoretical motivation for a new physics interpretation of the KOTO data.
    Language English
    Publishing date 2020-05-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.124.191801
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4' 58/153: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Book ; Online: Oblique Lessons from the $W$ Mass Measurement at CDF II

    Asadi, Pouya / Cesarotti, Cari / Fraser, Katherine / Homiller, Samuel / Parikh, Aditya

    2022  

    Abstract: The CDF collaboration recently reported a new precise measurement of the $W$ boson mass $M_W$ with a central value significantly larger than the SM prediction. We explore the effects of including this new measurement on a fit of the Standard Model (SM) ... ...

    Abstract The CDF collaboration recently reported a new precise measurement of the $W$ boson mass $M_W$ with a central value significantly larger than the SM prediction. We explore the effects of including this new measurement on a fit of the Standard Model (SM) to electroweak precision data. We characterize the tension of this new measurement with the SM and explore potential beyond the SM phenomena within the electroweak sector in terms of the oblique parameters $S$, $T$ and $U$. We show that the large $M_W$ value can be accommodated in the fit by a large, nonzero value of $U$, which is difficult to construct in explicit models. Assuming $U = 0$, the electroweak fit strongly prefers large, positive values of $T$. Finally, we study how the preferred values of the oblique parameters may be generated in the context of models affecting the electroweak sector at tree- and loop-level. In particular, we demonstrate that the preferred values of $T$ and $S$ can be generated with a real SU(2)$_L$ triplet scalar, the humble "swino," which can be heavy enough to evade current collider constraints, or by (multiple) species of a singlet-doublet fermion pair. We highlight challenges in constructing other simple models, such as a dark photon, for explaining a large $M_W$ value, and several directions for further study.

    Comment: 18 + 6 pages, 5 figures
    Keywords High Energy Physics - Phenomenology
    Subject code 612
    Publishing date 2022-04-11
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Book ; Online: Challenges for Unsupervised Anomaly Detection in Particle Physics

    Fraser, Katherine / Homiller, Samuel / Mishra, Rashmish K. / Ostdiek, Bryan / Schwartz, Matthew D.

    2021  

    Abstract: Anomaly detection relies on designing a score to determine whether a particular event is uncharacteristic of a given background distribution. One way to define a score is to use autoencoders, which rely on the ability to reconstruct certain types of data ...

    Abstract Anomaly detection relies on designing a score to determine whether a particular event is uncharacteristic of a given background distribution. One way to define a score is to use autoencoders, which rely on the ability to reconstruct certain types of data (background) but not others (signals). In this paper, we study some challenges associated with variational autoencoders, such as the dependence on hyperparameters and the metric used, in the context of anomalous signal (top and $W$) jets in a QCD background. We find that the hyperparameter choices strongly affect the network performance and that the optimal parameters for one signal are non-optimal for another. In exploring the networks, we uncover a connection between the latent space of a variational autoencoder trained using mean-squared-error and the optimal transport distances within the dataset. We then show that optimal transport distances to representative events in the background dataset can be used directly for anomaly detection, with performance comparable to the autoencoders. Whether using autoencoders or optimal transport distances for anomaly detection, we find that the choices that best represent the background are not necessarily best for signal identification. These challenges with unsupervised anomaly detection bolster the case for additional exploration of semi-supervised or alternative approaches.

    Comment: 22 + 2 pages, 8 figures, 2 tables
    Keywords High Energy Physics - Phenomenology ; Computer Science - Machine Learning ; High Energy Physics - Experiment ; Physics - Data Analysis ; Statistics and Probability
    Subject code 006
    Publishing date 2021-10-13
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: Aligned and Spontaneous Flavor Violation.

    Egana-Ugrinovic, Daniel / Homiller, Samuel / Meade, Patrick

    Physical review letters

    2015  Volume 123, Issue 3, Page(s) 31802

    Abstract: We present a systematic spurion setup called aligned flavor violation (AFV) that allows for new physics couplings to quarks that are aligned with standard model (SM) Yukawa couplings, but do not necessarily share their hierarchies nor are family ... ...

    Abstract We present a systematic spurion setup called aligned flavor violation (AFV) that allows for new physics couplings to quarks that are aligned with standard model (SM) Yukawa couplings, but do not necessarily share their hierarchies nor are family universal. Additionally, we show that there is an important subset of AFV called spontaneous flavor violation (SFV), which naturally arises from UV completions where the quark family number and CP groups are spontaneously broken. Flavor-changing neutral currents are strongly suppressed in SFV extensions of the SM. We study SFV from an effective field theory perspective and demonstrate that SFV new physics with significant and preferential couplings to first or second generation quarks may be close to the TeV scale.
    Language English
    Publishing date 2015-09-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.123.031802
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4' 58/153: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Article ; Online: The muon Smasher's guide.

    Al Ali, Hind / Arkani-Hamed, Nima / Banta, Ian / Benevedes, Sean / Buttazzo, Dario / Cai, Tianji / Cheng, Junyi / Cohen, Timothy / Craig, Nathaniel / Ekhterachian, Majid / Fan, JiJi / Forslund, Matthew / Garcia, Isabel Garcia / Homiller, Samuel / Koren, Seth / Koszegi, Giacomo / Liu, Zhen / Lu, Qianshu / Lyu, Kun-Feng /
    Mariotti, Alberto / McCune, Amara / Meade, Patrick / Ojalvo, Isobel / Oktem, Umut / Redigolo, Diego / Reece, Matthew / Sala, Filippo / Sundrum, Raman / Sutherland, Dave / Tesi, Andrea / Trott, Timothy / Tully, Chris / Wang, Lian-Tao / Wang, Menghang

    Reports on progress in physics. Physical Society (Great Britain)

    2022  Volume 85, Issue 8

    Abstract: We lay out a comprehensive physics case for a future high-energy muon collider, exploring a range of collision energies (from 1 to 100 TeV) and luminosities. We highlight the advantages of such a collider over proposed alternatives. We show how one can ... ...

    Abstract We lay out a comprehensive physics case for a future high-energy muon collider, exploring a range of collision energies (from 1 to 100 TeV) and luminosities. We highlight the advantages of such a collider over proposed alternatives. We show how one can leverage both the point-like nature of the muons themselves as well as the cloud of electroweak radiation that surrounds the beam to blur the dichotomy between energy and precision in the search for new physics. The physics case is buttressed by a range of studies with applications to electroweak symmetry breaking, dark matter, and the naturalness of the weak scale. Furthermore, we make sharp connections with complementary experiments that are probing new physics effects using electric dipole moments, flavor violation, and gravitational waves. An extensive appendix provides cross section predictions as a function of the center-of-mass energy for many canonical simplified models.
    Language English
    Publishing date 2022-07-05
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 205657-4
    ISSN 1361-6633 ; 0034-4885
    ISSN (online) 1361-6633
    ISSN 0034-4885
    DOI 10.1088/1361-6633/ac6678
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 52/38: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article ; Online: New Physics Searches at Kaon and Hyperon Factories.

    Goudzovski, Evgueni / Redigolo, Diego / Tobioka, Kohsaku / Zupan, Jure / Alonso-Álvarez, Gonzalo / Alves, Daniele S M / Bansal, Saurabh / Bauer, Martin / Brod, Joachim / Chobanova, Veronika / D'Ambrosio, Giancarlo / Datta, Alakabha / Dery, Avital / Dettori, Francesco / Dobrescu, Bogdan / Döbrich, Babette / Egana-Ugrinovic, Daniel / Elor, Gilly / Escudero, Miguel /
    Fabbrichesi, Marco / Fornal, Bartosz / Fox, Patrick J / Gabrielli, Emidio / Geng, Lisheng / Gligorov, Vladimir V / Gorbahn, Martin / Gori, Stefania / Grinstein, Benjamin / Grossman, Yuval / Guadagnoli, Diego / Homiller, Samuel / Hostert, Matheus / Kelly, Kevin J J / Kitahara, Teppei / Knapen, Simon / Krnjaic, Gordan / Kupsc, Andrzej / Kvedaraitė, Sandra / Lanfranchi, Gaia / Marfatia, Danny / Camalich, Jorge Martin / Santos, Diego Martinez / Massri, Karim / Meade, Patrick / Moulson, Matthew / Nanjo, Hajime / Neubert, Matthias / Pospelov, Maxim / Renner, Sophie / Schacht, Stefan / Schnubel, Marvin / Shi, Rui-Xiang / Shuve, Brian / Spadaro, Tommaso / Soreq, Yotam / Stamou, Emmanuel / Sumensari, Olcyr / Tammaro, Michele / Terol-Calvo, Jorge / Thamm, Andrea / Tung, Yu-Chen / Wang, Dayong / Yamamoto, Kei / Ziegler, Robert

    Reports on progress in physics. Physical Society (Great Britain)

    2022  

    Abstract: Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. On the other hand, useful ... ...

    Abstract Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. On the other hand, useful complementary information is provided by hyperon decay measurements. We summarize the relevant phenomenological models and the status of the searches in a comprehensive list of kaon and hyperon decay channels. We identify new search strategies for under-explored signatures, and demonstrate that the improved sensitivities from current and next-generation experiments could lead to a qualitative leap in the exploration of light dark sectors.
    Language English
    Publishing date 2022-10-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 205657-4
    ISSN 1361-6633 ; 0034-4885
    ISSN (online) 1361-6633
    ISSN 0034-4885
    DOI 10.1088/1361-6633/ac9cee
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 52/38: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top