Nav: Home

On the trail of the Higgs Boson

December 05, 2018

For the physics community, the discovery of new particles like the Higgs Boson has paved the way for a host of exciting potential experiments. Yet, when it comes to such an elusive particle as the Higgs Boson, it's not easy to unlock the secrets of the mechanism that led to its creation. The experiments designed to detect the Higgs Boson involve colliding particles with sufficiently high energy head-on after accelerating them in the Large Hadron Collider (LHC) at CERN in Geneva, Switzerland. In a quest to understand the production mechanisms for the Higgs Boson, Silvia Biondi from the National Institute of Nuclear Physics, Bologna, Italy investigated the traces of a rare process, called ttH, in which the Higgs Boson is produced in association with a pair of elementary particles referred to as top quarks. Her findings can be found in a recent study published in EPJ Plus. Future LHC experiments are expected to yield even more precise measurements of the Higgs Boson's ability to couple with particles that physicists are already familiar with.

Biondi first looked at data from the initial experiments performed in 2010, 2011 and 2012. Unfortunately, that data did not prove to be statistically significant enough to yield a suitable measurement of the processes leading to the Higgs Boson's creation. However, more recent LHC experiments, such as the ATLAS experiment dating back to 2015 and 2016, attained the requisite level of precision to study the ttH creation mechanisms.

In turn, she devised a method for reconstructing the signals that could stem from Higgs particles for each set of collision data. In this way, she enhanced the ability to discriminate between an actual Higgs Boson, background noise, and particles that are in the same energy state, but which do not have the characteristics of the Higgs Boson. She then performed a procedure to compare the expected theoretical measurement of the probability that a Higgs Boson will appear, with the probability of the ttH process taking place.
-end-
Reference

S. Biondi (2018), Study of the associated production of the Higgs Boson with a top quark pair in a boosted regime in the ATLAS experiment, Eur. Phys. J. Plus (2018) 133: 462 DOI 10.1140/epjp/i2018-12290-8

Springer

Related Higgs Boson Articles:

Through the nanoscale looking glass -- determining boson peak frequency in ultra-thin alumina
'Mysterious' vibrational properties of nanoscale glasses studied by subjecting novel (and slightly explosive) particles of aluminium wrapped in a thin alumina skin to neutron spectroscopy measurement at ANSTO.
In search of the Z boson
At the Japanese High-energy Accelerator Research Organization, KEK, in Tsukuba, about 50 kilometers north of Tokyo, the Belle II experiment has been in operation for about one year now.
Belle II yields first results in search of the Z' boson
The Belle II experiment started about one year ago. Physical Review Letters has now published the initial results of the detector.
Electrically charged higgs versus physicists: 1-0 until break
The last missing particle of the Standard Model, the Higgs boson, was discovered in 2012 in the experiments at the Large Hadron Collider.
On the trail of the Higgs Boson
In a quest to understand the production mechanisms for the Higgs Boson, Silvia Biondi from the National Institute of Nuclear Physics, Bologna, Italy investigated the traces of a rare process, called ttH, in which the Higgs Boson is produced in association with a pair of elementary particles referred to as top quarks.
New finding of particle physics may help to explain the absence of antimatter
With the help of computer simulations, particle physics researchers may be able to explain why there is more matter than antimatter in the Universe.
NYU Physicists develop new techniques to enhance data analysis for large hadron collider
NYU physicists have created new techniques that deploy machine learning as a means to significantly improve data analysis for the Large Hadron Collider (LHC), the world's most powerful particle accelerator.
SMU physicist explains the latest Higgs boson announcement in layman's terms
The discovery of the Higgs boson transforming as it decays into bottom quarks is a big step forward in the quest to understand how the Higgs particle enables fundamental particles to acquire mass.
Higgs particle's favorite 'daughter' comes home
In a finding that caps years of exploration into the tiny particle known as the Higgs boson, researchers have traced the fifth and most prominent way that the particle decays into other particles.
Researchers detect Higgs boson coupling with top quark
Detection of Higgs-top quark interaction at LHC by CMS and Atlas international collaborations, with Brazilian researchers participating, confirms theoretical predictions of Standard Model of particle physics.
More Higgs Boson News and Higgs Boson Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Listen Again: The Power Of Spaces
How do spaces shape the human experience? In what ways do our rooms, homes, and buildings give us meaning and purpose? This hour, TED speakers explore the power of the spaces we make and inhabit. Guests include architect Michael Murphy, musician David Byrne, artist Es Devlin, and architect Siamak Hariri.
Now Playing: Science for the People

#576 Science Communication in Creative Places
When you think of science communication, you might think of TED talks or museum talks or video talks, or... people giving lectures. It's a lot of people talking. But there's more to sci comm than that. This week host Bethany Brookshire talks to three people who have looked at science communication in places you might not expect it. We'll speak with Mauna Dasari, a graduate student at Notre Dame, about making mammals into a March Madness match. We'll talk with Sarah Garner, director of the Pathologists Assistant Program at Tulane University School of Medicine, who takes pathology instruction out of...
Now Playing: Radiolab

What If?
There's plenty of speculation about what Donald Trump might do in the wake of the election. Would he dispute the results if he loses? Would he simply refuse to leave office, or even try to use the military to maintain control? Last summer, Rosa Brooks got together a team of experts and political operatives from both sides of the aisle to ask a slightly different question. Rather than arguing about whether he'd do those things, they dug into what exactly would happen if he did. Part war game part choose your own adventure, Rosa's Transition Integrity Project doesn't give us any predictions, and it isn't a referendum on Trump. Instead, it's a deeply illuminating stress test on our laws, our institutions, and on the commitment to democracy written into the constitution. This episode was reported by Bethel Habte, with help from Tracie Hunte, and produced by Bethel Habte. Jeremy Bloom provided original music. Support Radiolab by becoming a member today at Radiolab.org/donate.     You can read The Transition Integrity Project's report here.